diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2021-05-07 00:34:51 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-05-07 00:34:51 -0700 |
| commit | a48b0872e69428d3d02994dcfad3519f01def7fa (patch) | |
| tree | 20617cba7bbb16d36faf79204ca69abc214d6c38 | |
| parent | 05da1f643f00ae9aabb8318709e40579789b7c64 (diff) | |
| parent | baf2f90ba416cd887d7f54cc877d8764f6775de2 (diff) | |
| download | linux-a48b0872e69428d3d02994dcfad3519f01def7fa.tar.gz linux-a48b0872e69428d3d02994dcfad3519f01def7fa.tar.bz2 linux-a48b0872e69428d3d02994dcfad3519f01def7fa.zip | |
Merge branch 'akpm' (patches from Andrew)
Merge yet more updates from Andrew Morton:
"This is everything else from -mm for this merge window.
90 patches.
Subsystems affected by this patch series: mm (cleanups and slub),
alpha, procfs, sysctl, misc, core-kernel, bitmap, lib, compat,
checkpatch, epoll, isofs, nilfs2, hpfs, exit, fork, kexec, gcov,
panic, delayacct, gdb, resource, selftests, async, initramfs, ipc,
drivers/char, and spelling"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (90 commits)
mm: fix typos in comments
mm: fix typos in comments
treewide: remove editor modelines and cruft
ipc/sem.c: spelling fix
fs: fat: fix spelling typo of values
kernel/sys.c: fix typo
kernel/up.c: fix typo
kernel/user_namespace.c: fix typos
kernel/umh.c: fix some spelling mistakes
include/linux/pgtable.h: few spelling fixes
mm/slab.c: fix spelling mistake "disired" -> "desired"
scripts/spelling.txt: add "overflw"
scripts/spelling.txt: Add "diabled" typo
scripts/spelling.txt: add "overlfow"
arm: print alloc free paths for address in registers
mm/vmalloc: remove vwrite()
mm: remove xlate_dev_kmem_ptr()
drivers/char: remove /dev/kmem for good
mm: fix some typos and code style problems
ipc/sem.c: mundane typo fixes
...
340 files changed, 1323 insertions, 2093 deletions
diff --git a/Documentation/admin-guide/devices.txt b/Documentation/admin-guide/devices.txt index ef41f77cb979..9c2be821c225 100644 --- a/Documentation/admin-guide/devices.txt +++ b/Documentation/admin-guide/devices.txt @@ -4,7 +4,7 @@ 1 char Memory devices 1 = /dev/mem Physical memory access - 2 = /dev/kmem Kernel virtual memory access + 2 = /dev/kmem OBSOLETE - replaced by /proc/kcore 3 = /dev/null Null device 4 = /dev/port I/O port access 5 = /dev/zero Null byte source diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 5bcc229d31e2..a816935d23d4 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -1835,6 +1835,18 @@ initcall functions. Useful for debugging built-in modules and initcalls. + initramfs_async= [KNL] + Format: <bool> + Default: 1 + This parameter controls whether the initramfs + image is unpacked asynchronously, concurrently + with devices being probed and + initialized. This should normally just work, + but as a debugging aid, one can get the + historical behaviour of the initramfs + unpacking being completed before device_ and + late_ initcalls. + initrd= [BOOT] Specify the location of the initial ramdisk initrdmem= [KNL] Specify a physical address and size from which to diff --git a/Documentation/dev-tools/gdb-kernel-debugging.rst b/Documentation/dev-tools/gdb-kernel-debugging.rst index 4756f6b3a04e..8e0f1fe8d17a 100644 --- a/Documentation/dev-tools/gdb-kernel-debugging.rst +++ b/Documentation/dev-tools/gdb-kernel-debugging.rst @@ -114,7 +114,7 @@ Examples of using the Linux-provided gdb helpers [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved .... -- Examine fields of the current task struct:: +- Examine fields of the current task struct(supported by x86 and arm64 only):: (gdb) p $lx_current().pid $1 = 4998 diff --git a/MAINTAINERS b/MAINTAINERS index 483ced0521a0..e845f052afd9 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -3207,6 +3207,22 @@ F: Documentation/filesystems/bfs.rst F: fs/bfs/ F: include/uapi/linux/bfs_fs.h +BITMAP API +M: Yury Norov <yury.norov@gmail.com> +R: Andy Shevchenko <andriy.shevchenko@linux.intel.com> +R: Rasmus Villemoes <linux@rasmusvillemoes.dk> +S: Maintained +F: include/asm-generic/bitops/find.h +F: include/linux/bitmap.h +F: lib/bitmap.c +F: lib/find_bit.c +F: lib/find_bit_benchmark.c +F: lib/test_bitmap.c +F: tools/include/asm-generic/bitops/find.h +F: tools/include/linux/bitmap.h +F: tools/lib/bitmap.c +F: tools/lib/find_bit.c + BLINKM RGB LED DRIVER M: Jan-Simon Moeller <jansimon.moeller@gmx.de> S: Maintained diff --git a/arch/alpha/include/asm/io.h b/arch/alpha/include/asm/io.h index 1f6a909d1fa5..0fab5ac90775 100644 --- a/arch/alpha/include/asm/io.h +++ b/arch/alpha/include/asm/io.h @@ -602,11 +602,6 @@ extern void outsl (unsigned long port, const void *src, unsigned long count); */ #define xlate_dev_mem_ptr(p) __va(p) -/* - * Convert a virtual cached pointer to an uncached pointer - */ -#define xlate_dev_kmem_ptr(p) p - #endif /* __KERNEL__ */ #endif /* __ALPHA_IO_H */ diff --git a/arch/alpha/kernel/pc873xx.c b/arch/alpha/kernel/pc873xx.c index 63aee5d86e02..82b19c9e59d6 100644 --- a/arch/alpha/kernel/pc873xx.c +++ b/arch/alpha/kernel/pc873xx.c @@ -13,12 +13,12 @@ static char *pc873xx_names[] = { static unsigned int base, model; -unsigned int __init pc873xx_get_base() +unsigned int __init pc873xx_get_base(void) { return base; } -char *__init pc873xx_get_model() +char *__init pc873xx_get_model(void) { return pc873xx_names[model]; } diff --git a/arch/alpha/lib/csum_partial_copy.c b/arch/alpha/lib/csum_partial_copy.c index dc68efbe9367..1931a04af85a 100644 --- a/arch/alpha/lib/csum_partial_copy.c +++ b/arch/alpha/lib/csum_partial_copy.c @@ -13,6 +13,7 @@ #include <linux/types.h> #include <linux/string.h> #include <linux/uaccess.h> +#include <net/checksum.h> #define ldq_u(x,y) \ diff --git a/arch/arm/configs/dove_defconfig b/arch/arm/configs/dove_defconfig index e70c997d5f4c..b935162a8bba 100644 --- a/arch/arm/configs/dove_defconfig +++ b/arch/arm/configs/dove_defconfig @@ -63,7 +63,6 @@ CONFIG_INPUT_EVDEV=y # CONFIG_MOUSE_PS2 is not set # CONFIG_SERIO is not set CONFIG_LEGACY_PTY_COUNT=16 -# CONFIG_DEVKMEM is not set CONFIG_SERIAL_8250=y CONFIG_SERIAL_8250_CONSOLE=y CONFIG_SERIAL_8250_RUNTIME_UARTS=2 diff --git a/arch/arm/configs/magician_defconfig b/arch/arm/configs/magician_defconfig index b4670d42f378..abde1fb23b20 100644 --- a/arch/arm/configs/magician_defconfig +++ b/arch/arm/configs/magician_defconfig @@ -72,7 +72,6 @@ CONFIG_INPUT_TOUCHSCREEN=y CONFIG_INPUT_MISC=y CONFIG_INPUT_UINPUT=m # CONFIG_SERIO is not set -# CONFIG_DEVKMEM is not set CONFIG_SERIAL_PXA=y # CONFIG_LEGACY_PTYS is not set # CONFIG_HW_RANDOM is not set diff --git a/arch/arm/configs/moxart_defconfig b/arch/arm/configs/moxart_defconfig index 6834e97af348..eacc089d86c5 100644 --- a/arch/arm/configs/moxart_defconfig +++ b/arch/arm/configs/moxart_defconfig @@ -79,7 +79,6 @@ CONFIG_INPUT_EVBUG=y # CONFIG_SERIO is not set # CONFIG_VT is not set # CONFIG_LEGACY_PTYS is not set -# CONFIG_DEVKMEM is not set CONFIG_SERIAL_8250=y CONFIG_SERIAL_8250_CONSOLE=y CONFIG_SERIAL_8250_NR_UARTS=1 diff --git a/arch/arm/configs/mps2_defconfig b/arch/arm/configs/mps2_defconfig index 1d923dbb9928..89f4a6ff30bd 100644 --- a/arch/arm/configs/mps2_defconfig +++ b/arch/arm/configs/mps2_defconfig @@ -69,7 +69,6 @@ CONFIG_SMSC911X=y # CONFIG_VT is not set # CONFIG_LEGACY_PTYS is not set CONFIG_SERIAL_NONSTANDARD=y -# CONFIG_DEVKMEM is not set CONFIG_SERIAL_MPS2_UART_CONSOLE=y CONFIG_SERIAL_MPS2_UART=y # CONFIG_HW_RANDOM is not set diff --git a/arch/arm/configs/mvebu_v5_defconfig b/arch/arm/configs/mvebu_v5_defconfig index 4f16716bfc32..d57ff30dabff 100644 --- a/arch/arm/configs/mvebu_v5_defconfig +++ b/arch/arm/configs/mvebu_v5_defconfig @@ -100,7 +100,6 @@ CONFIG_INPUT_EVDEV=y CONFIG_KEYBOARD_GPIO=y # CONFIG_INPUT_MOUSE is not set CONFIG_LEGACY_PTY_COUNT=16 -# CONFIG_DEVKMEM is not set CONFIG_SERIAL_8250=y CONFIG_SERIAL_8250_CONSOLE=y CONFIG_SERIAL_8250_RUNTIME_UARTS=2 diff --git a/arch/arm/configs/xcep_defconfig b/arch/arm/configs/xcep_defconfig index f1fbdfc5c8c6..4d8e7f2eaef7 100644 --- a/arch/arm/configs/xcep_defconfig +++ b/arch/arm/configs/xcep_defconfig @@ -53,7 +53,6 @@ CONFIG_NET_ETHERNET=y # CONFIG_INPUT_KEYBOARD is not set # CONFIG_INPUT_MOUSE is not set # CONFIG_SERIO is not set -# CONFIG_DEVKMEM is not set CONFIG_SERIAL_PXA=y CONFIG_SERIAL_PXA_CONSOLE=y # CONFIG_LEGACY_PTYS is not set diff --git a/arch/arm/include/asm/bug.h b/arch/arm/include/asm/bug.h index 673c7dd75ab9..ba8d9d7d242b 100644 --- a/arch/arm/include/asm/bug.h +++ b/arch/arm/include/asm/bug.h @@ -88,5 +88,6 @@ extern asmlinkage void c_backtrace(unsigned long fp, int pmode, struct mm_struct; void show_pte(const char *lvl, struct mm_struct *mm, unsigned long addr); extern void __show_regs(struct pt_regs *); +extern void __show_regs_alloc_free(struct pt_regs *regs); #endif diff --git a/arch/arm/include/asm/io.h b/arch/arm/include/asm/io.h index fc748122f1e0..f74944c6fe8d 100644 --- a/arch/arm/include/asm/io.h +++ b/arch/arm/include/asm/io.h @@ -430,11 +430,6 @@ extern void pci_iounmap(struct pci_dev *dev, void __iomem *addr); */ #define xlate_dev_mem_ptr(p) __va(p) -/* - * Convert a virtual cached pointer to an uncached pointer - */ -#define xlate_dev_kmem_ptr(p) p - #include <asm-generic/io.h> #ifdef CONFIG_MMU diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c index 5199a2bb4111..6324f4db9b02 100644 --- a/arch/arm/kernel/process.c +++ b/arch/arm/kernel/process.c @@ -92,6 +92,17 @@ void arch_cpu_idle_exit(void) ledtrig_cpu(CPU_LED_IDLE_END); } +void __show_regs_alloc_free(struct pt_regs *regs) +{ + int i; + + /* check for r0 - r12 only */ + for (i = 0; i < 13; i++) { + pr_alert("Register r%d information:", i); + mem_dump_obj((void *)regs->uregs[i]); + } +} + void __show_regs(struct pt_regs *regs) { unsigned long flags; diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c index 17d5a785df28..64308e3a5d0c 100644 --- a/arch/arm/kernel/traps.c +++ b/arch/arm/kernel/traps.c @@ -287,6 +287,7 @@ static int __die(const char *str, int err, struct pt_regs *regs) print_modules(); __show_regs(regs); + __show_regs_alloc_free(regs); pr_emerg("Process %.*s (pid: %d, stack limit = 0x%p)\n", TASK_COMM_LEN, tsk->comm, task_pid_nr(tsk), end_of_stack(tsk)); diff --git a/arch/h8300/include/asm/bitops.h b/arch/h8300/include/asm/bitops.h index 7aa16c732aa9..c867a80cab5b 100644 --- a/arch/h8300/include/asm/bitops.h +++ b/arch/h8300/include/asm/bitops.h @@ -9,6 +9,10 @@ #include <linux/compiler.h> +#include <asm-generic/bitops/fls.h> +#include <asm-generic/bitops/__fls.h> +#include <asm-generic/bitops/fls64.h> + #ifdef __KERNEL__ #ifndef _LINUX_BITOPS_H @@ -173,8 +177,4 @@ static inline unsigned long __ffs(unsigned long word) #endif /* __KERNEL__ */ -#include <asm-generic/bitops/fls.h> -#include <asm-generic/bitops/__fls.h> -#include <asm-generic/bitops/fls64.h> - #endif /* _H8300_BITOPS_H */ diff --git a/arch/hexagon/configs/comet_defconfig b/arch/hexagon/configs/comet_defconfig index f70daa038e85..9b2b1cc0794a 100644 --- a/arch/hexagon/configs/comet_defconfig +++ b/arch/hexagon/configs/comet_defconfig @@ -34,7 +34,6 @@ CONFIG_NET_ETHERNET=y # CONFIG_SERIO is not set # CONFIG_CONSOLE_TRANSLATIONS is not set CONFIG_LEGACY_PTY_COUNT=64 -# CONFIG_DEVKMEM is not set # CONFIG_HW_RANDOM is not set CONFIG_SPI=y CONFIG_SPI_DEBUG=y diff --git a/arch/hexagon/include/asm/io.h b/arch/hexagon/include/asm/io.h index bda2a9c2df78..c33241425a5c 100644 --- a/arch/hexagon/include/asm/io.h +++ b/arch/hexagon/include/asm/io.h @@ -64,7 +64,6 @@ static inline void *phys_to_virt(unsigned long address) * convert a physical pointer to a virtual kernel pointer for * /dev/mem access. */ -#define xlate_dev_kmem_ptr(p) __va(p) #define xlate_dev_mem_ptr(p) __va(p) /* diff --git a/arch/ia64/include/asm/io.h b/arch/ia64/include/asm/io.h index 3d666a11a2de..6d93b923b379 100644 --- a/arch/ia64/include/asm/io.h +++ b/arch/ia64/include/asm/io.h @@ -277,7 +277,6 @@ extern void memset_io(volatile void __iomem *s, int c, long n); #define memcpy_fromio memcpy_fromio #define memcpy_toio memcpy_toio #define memset_io memset_io -#define xlate_dev_kmem_ptr xlate_dev_kmem_ptr #define xlate_dev_mem_ptr xlate_dev_mem_ptr #include <asm-generic/io.h> #undef PCI_IOBASE diff --git a/arch/ia64/include/asm/uaccess.h b/arch/ia64/include/asm/uaccess.h index 179243c3dfc7..e19d2dcc0ced 100644 --- a/arch/ia64/include/asm/uaccess.h +++ b/arch/ia64/include/asm/uaccess.h @@ -272,22 +272,4 @@ xlate_dev_mem_ptr(phys_addr_t p) return ptr; } -/* - * Convert a virtual cached kernel memory pointer to an uncached pointer - */ -static __inline__ void * -xlate_dev_kmem_ptr(void *p) -{ - struct page *page; - void *ptr; - - page = virt_to_page((unsigned long)p); - if (PageUncached(page)) - ptr = (void *)__pa(p) + __IA64_UNCACHED_OFFSET; - else - ptr = p; - - return ptr; -} - #endif /* _ASM_IA64_UACCESS_H */ diff --git a/arch/m68k/atari/time.c b/arch/m68k/atari/time.c index 1068670cb741..7e44d0e9d0f8 100644 --- a/arch/m68k/atari/time.c +++ b/arch/m68k/atari/time.c @@ -317,10 +317,3 @@ int atari_tt_hwclk( int op, struct rtc_time *t ) return( 0 ); } - -/* - * Local variables: - * c-indent-level: 4 - * tab-width: 8 - * End: - */ diff --git a/arch/m68k/configs/amcore_defconfig b/arch/m68k/configs/amcore_defconfig index 3a84f24d41c8..6d9ed2198170 100644 --- a/arch/m68k/configs/amcore_defconfig +++ b/arch/m68k/configs/amcore_defconfig @@ -60,7 +60,6 @@ CONFIG_DM9000=y # CONFIG_VT is not set # CONFIG_UNIX98_PTYS is not set # CONFIG_DEVMEM is not set -# CONFIG_DEVKMEM is not set CONFIG_SERIAL_MCF=y CONFIG_SERIAL_MCF_BAUDRATE=115200 CONFIG_SERIAL_MCF_CONSOLE=y diff --git a/arch/m68k/include/asm/bitops.h b/arch/m68k/include/asm/bitops.h index 10133a968c8e..7b414099e5fc 100644 --- a/arch/m68k/include/asm/bitops.h +++ b/arch/m68k/include/asm/bitops.h @@ -440,8 +440,6 @@ static inline unsigned long ffz(unsigned long word) #endif -#include <asm-generic/bitops/find.h> - #ifdef __KERNEL__ #if defined(CONFIG_CPU_HAS_NO_BITFIELDS) @@ -525,10 +523,12 @@ static inline int __fls(int x) #define __clear_bit_unlock clear_bit_unlock #include <asm-generic/bitops/ext2-atomic.h> -#include <asm-generic/bitops/le.h> #include <asm-generic/bitops/fls64.h> #include <asm-generic/bitops/sched.h> #include <asm-generic/bitops/hweight.h> +#include <asm-generic/bitops/le.h> #endif /* __KERNEL__ */ +#include <asm-generic/bitops/find.h> + #endif /* _M68K_BITOPS_H */ diff --git a/arch/m68k/include/asm/io_mm.h b/arch/m68k/include/asm/io_mm.h index 819f611dccf2..d41fa488453b 100644 --- a/arch/m68k/include/asm/io_mm.h +++ b/arch/m68k/include/asm/io_mm.h @@ -397,11 +397,6 @@ static inline void isa_delay(void) */ #define xlate_dev_mem_ptr(p) __va(p) -/* - * Convert a virtual cached pointer to an uncached pointer - */ -#define xlate_dev_kmem_ptr(p) p - #define readb_relaxed(addr) readb(addr) #define readw_relaxed(addr) readw(addr) #define readl_relaxed(addr) readl(addr) diff --git a/arch/mips/include/asm/io.h b/arch/mips/include/asm/io.h index 2c138450ad3b..6f5c86d2bab4 100644 --- a/arch/mips/include/asm/io.h +++ b/arch/mips/include/asm/io.h @@ -564,11 +564,6 @@ extern void (*_dma_cache_inv)(unsigned long start, unsigned long size); */ #define xlate_dev_mem_ptr(p) __va(p) -/* - * Convert a virtual cached pointer to an uncached pointer - */ -#define xlate_dev_kmem_ptr(p) p - void __ioread64_copy(void *to, const void __iomem *from, size_t count); #endif /* _ASM_IO_H */ diff --git a/arch/openrisc/configs/or1ksim_defconfig b/arch/openrisc/configs/or1ksim_defconfig index 75f2da324d0e..6e1e004047c7 100644 --- a/arch/openrisc/configs/or1ksim_defconfig +++ b/arch/openrisc/configs/or1ksim_defconfig @@ -43,7 +43,6 @@ CONFIG_MICREL_PHY=y # CONFIG_SERIO is not set # CONFIG_VT is not set # CONFIG_LEGACY_PTYS is not set -# CONFIG_DEVKMEM is not set CONFIG_SERIAL_8250=y CONFIG_SERIAL_8250_CONSOLE=y CONFIG_SERIAL_OF_PLATFORM=y diff --git a/arch/parisc/include/asm/io.h b/arch/parisc/include/asm/io.h index 8a11b8cf4719..0b5259102319 100644 --- a/arch/parisc/include/asm/io.h +++ b/arch/parisc/include/asm/io.h @@ -316,11 +316,6 @@ extern void iowrite64be(u64 val, void __iomem *addr); */ #define xlate_dev_mem_ptr(p) __va(p) -/* - * Convert a virtual cached pointer to an uncached pointer - */ -#define xlate_dev_kmem_ptr(p) p - extern int devmem_is_allowed(unsigned long pfn); #endif diff --git a/arch/parisc/include/asm/pdc_chassis.h b/arch/parisc/include/asm/pdc_chassis.h index ae3e108d22ad..d6d82f53d3d0 100644 --- a/arch/parisc/include/asm/pdc_chassis.h +++ b/arch/parisc/include/asm/pdc_chassis.h @@ -365,4 +365,3 @@ void parisc_pdc_chassis_init(void); PDC_CHASSIS_EOM_SET ) #endif /* _PARISC_PDC_CHASSIS_H */ -/* vim: set ts=8 */ diff --git a/arch/powerpc/include/asm/io.h b/arch/powerpc/include/asm/io.h index 273edd208ec5..f130783c8301 100644 --- a/arch/powerpc/include/asm/io.h +++ b/arch/powerpc/include/asm/io.h @@ -663,11 +663,6 @@ static inline void name at \ #define xlate_dev_mem_ptr(p) __va(p) /* - * Convert a virtual cached pointer to an uncached pointer - */ -#define xlate_dev_kmem_ptr(p) p - -/* * We don't do relaxed operations yet, at least not with this semantic */ #define readb_relaxed(addr) readb(addr) diff --git a/arch/s390/include/asm/io.h b/arch/s390/include/asm/io.h index 28664ee0abc1..e3882b012bfa 100644 --- a/arch/s390/include/asm/io.h +++ b/arch/s390/include/asm/io.h @@ -20,11 +20,6 @@ void *xlate_dev_mem_ptr(phys_addr_t phys); #define unxlate_dev_mem_ptr unxlate_dev_mem_ptr void unxlate_dev_mem_ptr(phys_addr_t phys, void *addr); -/* - * Convert a virtual cached pointer to an uncached pointer - */ -#define xlate_dev_kmem_ptr(p) p - #define IO_SPACE_LIMIT 0 void __iomem *ioremap_prot(phys_addr_t addr, size_t size, unsigned long prot); diff --git a/arch/sh/configs/edosk7705_defconfig b/arch/sh/configs/edosk7705_defconfig index ef7cc31997b1..9ee35269bee2 100644 --- a/arch/sh/configs/edosk7705_defconfig +++ b/arch/sh/configs/edosk7705_defconfig @@ -23,7 +23,6 @@ CONFIG_SH_PCLK_FREQ=31250000 # CONFIG_INPUT is not set # CONFIG_SERIO is not set # CONFIG_VT is not set -# CONFIG_DEVKMEM is not set # CONFIG_UNIX98_PTYS is not set # CONFIG_LEGACY_PTYS is not set # CONFIG_HW_RANDOM is not set diff --git a/arch/sh/configs/se7206_defconfig b/arch/sh/configs/se7206_defconfig index 315b04a8dd2f..601d062250d1 100644 --- a/arch/sh/configs/se7206_defconfig +++ b/arch/sh/configs/se7206_defconfig @@ -71,7 +71,6 @@ CONFIG_SMC91X=y # CONFIG_INPUT is not set # CONFIG_SERIO is not set # CONFIG_VT is not set -# CONFIG_DEVKMEM is not set CONFIG_SERIAL_SH_SCI=y CONFIG_SERIAL_SH_SCI_NR_UARTS=4 CONFIG_SERIAL_SH_SCI_CONSOLE=y diff --git a/arch/sh/configs/sh2007_defconfig b/arch/sh/configs/sh2007_defconfig index 99975db461d8..79f02f1c0dc8 100644 --- a/arch/sh/configs/sh2007_defconfig +++ b/arch/sh/configs/sh2007_defconfig @@ -75,7 +75,6 @@ CONFIG_INPUT_FF_MEMLESS=y # CONFIG_INPUT_MOUSE is not set # CONFIG_SERIO is not set CONFIG_VT_HW_CONSOLE_BINDING=y -# CONFIG_DEVKMEM is not set CONFIG_SERIAL_SH_SCI=y CONFIG_SERIAL_SH_SCI_CONSOLE=y # CONFIG_LEGACY_PTYS is not set diff --git a/arch/sh/configs/sh7724_generic_defconfig b/arch/sh/configs/sh7724_generic_defconfig index 2c46c0004780..cbc9389a89a8 100644 --- a/arch/sh/configs/sh7724_generic_defconfig +++ b/arch/sh/configs/sh7724_generic_defconfig @@ -18,7 +18,6 @@ CONFIG_CPU_IDLE=y # CONFIG_INPUT is not set # CONFIG_SERIO is not set # CONFIG_VT is not set -# CONFIG_DEVKMEM is not set CONFIG_SERIAL_SH_SCI=y CONFIG_SERIAL_SH_SCI_NR_UARTS=6 CONFIG_SERIAL_SH_SCI_CONSOLE=y diff --git a/arch/sh/configs/sh7770_generic_defconfig b/arch/sh/configs/sh7770_generic_defconfig index 88193153e51b..ee2357deba0f 100644 --- a/arch/sh/configs/sh7770_generic_defconfig +++ b/arch/sh/configs/sh7770_generic_defconfig @@ -20,7 +20,6 @@ CONFIG_CPU_IDLE=y # CONFIG_INPUT is not set # CONFIG_SERIO is not set # CONFIG_VT is not set -# CONFIG_DEVKMEM is not set CONFIG_SERIAL_SH_SCI=y CONFIG_SERIAL_SH_SCI_NR_UARTS=6 CONFIG_SERIAL_SH_SCI_CONSOLE=y diff --git a/arch/sh/configs/sh7785lcr_32bit_defconfig b/arch/sh/configs/sh7785lcr_32bit_defconfig index 9b885c14c400..5c725c75fcef 100644 --- a/arch/sh/configs/sh7785lcr_32bit_defconfig +++ b/arch/sh/configs/sh7785lcr_32bit_defconfig @@ -66,7 +66,6 @@ CONFIG_INPUT_FF_MEMLESS=m CONFIG_INPUT_EVDEV=y CONFIG_INPUT_EVBUG=m CONFIG_VT_HW_CONSOLE_BINDING=y -# CONFIG_DEVKMEM is not set CONFIG_SERIAL_SH_SCI=y CONFIG_SERIAL_SH_SCI_NR_UARTS=6 CONFIG_SERIAL_SH_SCI_CONSOLE=y diff --git a/arch/sh/include/asm/bitops.h b/arch/sh/include/asm/bitops.h index 450b5854d7c6..3b6c7b5b7ec9 100644 --- a/arch/sh/include/asm/bitops.h +++ b/arch/sh/include/asm/bitops.h @@ -58,15 +58,16 @@ static inline unsigned long __ffs(unsigned long word) return result; } -#include <asm-generic/bitops/find.h> #include <asm-generic/bitops/ffs.h> #include <asm-generic/bitops/hweight.h> #include <asm-generic/bitops/lock.h> #include <asm-generic/bitops/sched.h> -#include <asm-generic/bitops/le.h> #include <asm-generic/bitops/ext2-atomic.h> #include <asm-generic/bitops/fls.h> #include <asm-generic/bitops/__fls.h> #include <asm-generic/bitops/fls64.h> +#include <asm-generic/bitops/le.h> +#include <asm-generic/bitops/find.h> + #endif /* __ASM_SH_BITOPS_H */ diff --git a/arch/sh/include/asm/io.h b/arch/sh/include/asm/io.h index 6d5c6463bc07..cf9a3ec32406 100644 --- a/arch/sh/include/asm/io.h +++ b/arch/sh/include/asm/io.h @@ -283,11 +283,6 @@ static inline void __iomem *ioremap_prot(phys_addr_t offset, unsigned long size, */ #define xlate_dev_mem_ptr(p) __va(p) -/* - * Convert a virtual cached pointer to an uncached pointer - */ -#define xlate_dev_kmem_ptr(p) p - #define ARCH_HAS_VALID_PHYS_ADDR_RANGE int valid_phys_addr_range(phys_addr_t addr, size_t size); int valid_mmap_phys_addr_range(unsigned long pfn, size_t size); diff --git a/arch/sparc/configs/sparc64_defconfig b/arch/sparc/configs/sparc64_defconfig index 12a4fb0bd52a..18099099583e 100644 --- a/arch/sparc/configs/sparc64_defconfig +++ b/arch/sparc/configs/sparc64_defconfig @@ -122,7 +122,6 @@ CONFIG_INPUT_SPARCSPKR=y # CONFIG_SERIO_SERPORT is not set CONFIG_SERIO_PCIPS2=m CONFIG_SERIO_RAW=m -# CONFIG_DEVKMEM is not set CONFIG_SERIAL_SUNSU=y CONFIG_SERIAL_SUNSU_CONSOLE=y CONFIG_SERIAL_SUNSAB=y diff --git a/arch/sparc/include/asm/io_64.h b/arch/sparc/include/asm/io_64.h index 9fbfc9574432..5ffa820dcd4d 100644 --- a/arch/sparc/include/asm/io_64.h +++ b/arch/sparc/include/asm/io_64.h @@ -454,11 +454,6 @@ void sbus_set_sbus64(struct device *, int); */ #define xlate_dev_mem_ptr(p) __va(p) -/* - * Convert a virtual cached pointer to an uncached pointer - */ -#define xlate_dev_kmem_ptr(p) p - #endif #endif /* !(__SPARC64_IO_H) */ diff --git a/arch/um/drivers/cow.h b/arch/um/drivers/cow.h index 103adac691ed..9a67c017000f 100644 --- a/arch/um/drivers/cow.h +++ b/arch/um/drivers/cow.h @@ -24,10 +24,3 @@ extern void cow_sizes(int version, __u64 size, int sectorsize, int align, int *data_offset_out); #endif - -/* - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */ diff --git a/arch/xtensa/configs/xip_kc705_defconfig b/arch/xtensa/configs/xip_kc705_defconfig index 4f1ff9531f6a..062148e17135 100644 --- a/arch/xtensa/configs/xip_kc705_defconfig +++ b/arch/xtensa/configs/xip_kc705_defconfig @@ -72,7 +72,6 @@ CONFIG_MARVELL_PHY=y # CONFIG_INPUT_KEYBOARD is not set # CONFIG_INPUT_MOUSE is not set # CONFIG_SERIO is not set -CONFIG_DEVKMEM=y CONFIG_SERIAL_8250=y # CONFIG_SERIAL_8250_DEPRECATED_OPTIONS is not set CONFIG_SERIAL_8250_CONSOLE=y diff --git a/block/blk-settings.c b/block/blk-settings.c index 9c009090c4b5..902c40d67120 100644 --- a/block/blk-settings.c +++ b/block/blk-settings.c @@ -7,6 +7,7 @@ #include <linux/init.h> #include <linux/bio.h> #include <linux/blkdev.h> +#include <linux/pagemap.h> #include <linux/gcd.h> #include <linux/lcm.h> #include <linux/jiffies.h> diff --git a/drivers/auxdisplay/panel.c b/drivers/auxdisplay/panel.c index ff5755ee5694..eba04c0de7eb 100644 --- a/drivers/auxdisplay/panel.c +++ b/drivers/auxdisplay/panel.c @@ -1737,10 +1737,3 @@ module_init(panel_init_module); module_exit(panel_cleanup_module); MODULE_AUTHOR("Willy Tarreau"); MODULE_LICENSE("GPL"); - -/* - * Local variables: - * c-indent-level: 4 - * tab-width: 8 - * End: - */ diff --git a/drivers/base/firmware_loader/main.c b/drivers/base/firmware_loader/main.c index 78355095e00d..4fdb8219cd08 100644 --- a/drivers/base/firmware_loader/main.c +++ b/drivers/base/firmware_loader/main.c @@ -15,6 +15,7 @@ #include <linux/kernel_read_file.h> #include <linux/module.h> #include <linux/init.h> +#include <linux/initrd.h> #include <linux/timer.h> #include <linux/vmalloc.h> #include <linux/interrupt.h> @@ -504,6 +505,7 @@ fw_get_filesystem_firmware(struct device *device, struct fw_priv *fw_priv, if (!path) return -ENOMEM; + wait_for_initramfs(); for (i = 0; i < ARRAY_SIZE(fw_path); i++) { size_t file_size = 0; size_t *file_size_ptr = NULL; diff --git a/drivers/block/brd.c b/drivers/block/brd.c index 6e622c1327ee..7562cf30b14e 100644 --- a/drivers/block/brd.c +++ b/drivers/block/brd.c @@ -18,6 +18,7 @@ #include <linux/bio.h> #include <linux/highmem.h> #include <linux/mutex.h> +#include <linux/pagemap.h> #include <linux/radix-tree.h> #include <linux/fs.h> #include <linux/slab.h> diff --git a/drivers/block/loop.c b/drivers/block/loop.c index a370cde3ddd4..d58d68f3c7cd 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -53,6 +53,7 @@ #include <linux/moduleparam.h> #include <linux/sched.h> #include <linux/fs.h> +#include <linux/pagemap.h> #include <linux/file.h> #include <linux/stat.h> #include <linux/errno.h> diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig index d229a2d0c017..b151e0fcdeb5 100644 --- a/drivers/char/Kconfig +++ b/drivers/char/Kconfig @@ -334,16 +334,6 @@ config DEVMEM memory. When in doubt, say "Y". -config DEVKMEM - bool "/dev/kmem virtual device support" - # On arm64, VMALLOC_START < PAGE_OFFSET, which confuses kmem read/write - depends on !ARM64 - help - Say Y here if you want to support the /dev/kmem device. The - /dev/kmem device is rarely used, but can be used for certain - kind of kernel debugging operations. - When in doubt, say "N". - config NVRAM tristate "/dev/nvram support" depends on X86 || HAVE_ARCH_NVRAM_OPS diff --git a/drivers/char/mem.c b/drivers/char/mem.c index 869b9f5e8e03..15dc54fa1d47 100644 --- a/drivers/char/mem.c +++ b/drivers/char/mem.c @@ -403,221 +403,6 @@ static int mmap_mem(struct file *file, struct vm_area_struct *vma) return 0; } -static int mmap_kmem(struct file *file, struct vm_area_struct *vma) -{ - unsigned long pfn; - - /* Turn a kernel-virtual address into a physical page frame */ - pfn = __pa((u64)vma->vm_pgoff << PAGE_SHIFT) >> PAGE_SHIFT; - - /* - * RED-PEN: on some architectures there is more mapped memory than - * available in mem_map which pfn_valid checks for. Perhaps should add a - * new macro here. - * - * RED-PEN: vmalloc is not supported right now. - */ - if (!pfn_valid(pfn)) - return -EIO; - - vma->vm_pgoff = pfn; - return mmap_mem(file, vma); -} - -/* - * This function reads the *virtual* memory as seen by the kernel. - */ -static ssize_t read_kmem(struct file *file, char __user *buf, - size_t count, loff_t *ppos) -{ - unsigned long p = *ppos; - ssize_t low_count, read, sz; - char *kbuf; /* k-addr because vread() takes vmlist_lock rwlock */ - int err = 0; - - read = 0; - if (p < (unsigned long) high_memory) { - low_count = count; - if (count > (unsigned long)high_memory - p) - low_count = (unsigned long)high_memory - p; - -#ifdef __ARCH_HAS_NO_PAGE_ZERO_MAPPED - /* we don't have page 0 mapped on sparc and m68k.. */ - if (p < PAGE_SIZE && low_count > 0) { - sz = size_inside_page(p, low_count); - if (clear_user(buf, sz)) - return -EFAULT; - buf += sz; - p += sz; - read += sz; - low_count -= sz; - count -= sz; - } -#endif - while (low_count > 0) { - sz = size_inside_page(p, low_count); - - /* - * On ia64 if a page has been mapped somewhere as - * uncached, then it must also be accessed uncached - * by the kernel or data corruption may occur - */ - kbuf = xlate_dev_kmem_ptr((void *)p); - if (!virt_addr_valid(kbuf)) - return -ENXIO; - - if (copy_to_user(buf, kbuf, sz)) - return -EFAULT; - buf += sz; - p += sz; - read += sz; - low_count -= sz; - count -= sz; - if (should_stop_iteration()) { - count = 0; - break; - } - } - } - - if (count > 0) { - kbuf = (char *)__get_free_page(GFP_KERNEL); - if (!kbuf) - return -ENOMEM; - while (count > 0) { - sz = size_inside_page(p, count); - if (!is_vmalloc_or_module_addr((void *)p)) { - err = -ENXIO; - break; - } - sz = vread(kbuf, (char *)p, sz); - if (!sz) - break; - if (copy_to_user(buf, kbuf, sz)) { - err = -EFAULT; - break; - } - count -= sz; - buf += sz; - read += sz; - p += sz; - if (should_stop_iteration()) - break; - } - free_page((unsigned long)kbuf); - } - *ppos = p; - return read ? read : err; -} - - -static ssize_t do_write_kmem(unsigned long p, const char __user *buf, - size_t count, loff_t *ppos) -{ - ssize_t written, sz; - unsigned long copied; - - written = 0; -#ifdef __ARCH_HAS_NO_PAGE_ZERO_MAPPED - /* we don't have page 0 mapped on sparc and m68k.. */ - if (p < PAGE_SIZE) { - sz = size_inside_page(p, count); - /* Hmm. Do something? */ - buf += sz; - p += sz; - count -= sz; - written += sz; - } -#endif - - while (count > 0) { - void *ptr; - - sz = size_inside_page(p, count); - - /* - * On ia64 if a page has been mapped somewhere as uncached, then - * it must also be accessed uncached by the kernel or data - * corruption may occur. - */ - ptr = xlate_dev_kmem_ptr((void *)p); - if (!virt_addr_valid(ptr)) - return -ENXIO; - - copied = copy_from_user(ptr, buf, sz); - if (copied) { - written += sz - copied; - if (written) - break; - return -EFAULT; - } - buf += sz; - p += sz; - count -= sz; - written += sz; - if (should_stop_iteration()) - break; - } - - *ppos += written; - return written; -} - -/* - * This function writes to the *virtual* memory as seen by the kernel. - */ -static ssize_t write_kmem(struct file *file, const char __user *buf, - size_t count, loff_t *ppos) -{ - unsigned long p = *ppos; - ssize_t wrote = 0; - ssize_t virtr = 0; - char *kbuf; /* k-addr because vwrite() takes vmlist_lock rwlock */ - int err = 0; - - if (p < (unsigned long) high_memory) { - unsigned long to_write = min_t(unsigned long, count, - (unsigned long)high_memory - p); - wrote = do_write_kmem(p, buf, to_write, ppos); - if (wrote != to_write) - return wrote; - p += wrote; - buf += wrote; - count -= wrote; - } - - if (count > 0) { - kbuf = (char *)__get_free_page(GFP_KERNEL); - if (!kbuf) - return wrote ? wrote : -ENOMEM; - while (count > 0) { - unsigned long sz = size_inside_page(p, count); - unsigned long n; - - if (!is_vmalloc_or_module_addr((void *)p)) { - err = -ENXIO; - break; - } - n = copy_from_user(kbuf, buf, sz); - if (n) { - err = -EFAULT; - break; - } - vwrite(kbuf, (char *)p, sz); - count -= sz; - buf += sz; - virtr += sz; - p += sz; - if (should_stop_iteration()) - break; - } - free_page((unsigned long)kbuf); - } - - *ppos = p; - return virtr + wrote ? : err; -} - static ssize_t read_port(struct file *file, char __user *buf, size_t count, loff_t *ppos) { @@ -855,7 +640,6 @@ static int open_port(struct inode *inode, struct file *filp) #define write_zero write_null #define write_iter_zero write_iter_null #define open_mem open_port -#define open_kmem open_mem static const struct file_operations __maybe_unused mem_fops = { .llseek = memory_lseek, @@ -869,18 +653,6 @@ static const struct file_operations __maybe_unused mem_fops = { #endif }; -static const struct file_operations __maybe_unused kmem_fops = { - .llseek = memory_lseek, - .read = read_kmem, - .write = write_kmem, - .mmap = mmap_kmem, - .open = open_kmem, -#ifndef CONFIG_MMU - .get_unmapped_area = get_unmapped_area_mem, - .mmap_capabilities = memory_mmap_capabilities, -#endif -}; - static const struct file_operations null_fops = { .llseek = null_lseek, .read = read_null, @@ -925,9 +697,6 @@ static const struct memdev { #ifdef CONFIG_DEVMEM [DEVMEM_MINOR] = { "mem", 0, &mem_fops, FMODE_UNSIGNED_OFFSET }, #endif -#ifdef CONFIG_DEVKMEM - [2] = { "kmem", 0, &kmem_fops, FMODE_UNSIGNED_OFFSET }, -#endif [3] = { "null", 0666, &null_fops, 0 }, #ifdef CONFIG_DEVPORT [4] = { "port", 0, &port_fops, 0 }, diff --git a/drivers/gpu/drm/qxl/qxl_drv.c b/drivers/gpu/drm/qxl/qxl_drv.c index 1864467f1063..6754f578fed2 100644 --- a/drivers/gpu/drm/qxl/qxl_drv.c +++ b/drivers/gpu/drm/qxl/qxl_drv.c @@ -1,4 +1,3 @@ -/* vim: set ts=8 sw=8 tw=78 ai noexpandtab */ /* qxl_drv.c -- QXL driver -*- linux-c -*- * * Copyright 2011 Red Hat, Inc. diff --git a/drivers/isdn/capi/kcapi_proc.c b/drivers/isdn/capi/kcapi_proc.c index b5ed4ea145cb..77e951206809 100644 --- a/drivers/isdn/capi/kcapi_proc.c +++ b/drivers/isdn/capi/kcapi_proc.c @@ -201,6 +201,7 @@ static ssize_t empty_read(struct file *file, char __user *buf, static const struct proc_ops empty_proc_ops = { .proc_read = empty_read, + .proc_lseek = default_llseek, }; // --------------------------------------------------------------------------- diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c index 2b6d6e9cd680..bea8c4429ae8 100644 --- a/drivers/md/bcache/super.c +++ b/drivers/md/bcache/super.c @@ -16,6 +16,7 @@ #include "features.h" #include <linux/blkdev.h> +#include <linux/pagemap.h> #include <linux/debugfs.h> #include <linux/genhd.h> #include <linux/idr.h> diff --git a/drivers/media/usb/pwc/pwc-uncompress.c b/drivers/media/usb/pwc/pwc-uncompress.c index abfc88391036..68bc3829c6b3 100644 --- a/drivers/media/usb/pwc/pwc-uncompress.c +++ b/drivers/media/usb/pwc/pwc-uncompress.c @@ -9,9 +9,6 @@ Please send bug reports and support requests to <luc@saillard.org>. The decompression routines have been implemented by reverse-engineering the Nemosoft binary pwcx module. Caveat emptor. - - - vim: set ts=8: */ #include <asm/current.h> diff --git a/drivers/net/ethernet/adaptec/starfire.c b/drivers/net/ethernet/adaptec/starfire.c index 555299737b51..7965e5e3c985 100644 --- a/drivers/net/ethernet/adaptec/starfire.c +++ b/drivers/net/ethernet/adaptec/starfire.c @@ -2070,11 +2070,3 @@ static void __exit starfire_cleanup (void) module_init(starfire_init); module_exit(starfire_cleanup); - - -/* - * Local variables: - * c-basic-offset: 8 - * tab-width: 8 - * End: - */ diff --git a/drivers/net/ethernet/amd/atarilance.c b/drivers/net/ethernet/amd/atarilance.c index 961796abab35..c1eab916438f 100644 --- a/drivers/net/ethernet/amd/atarilance.c +++ b/drivers/net/ethernet/amd/atarilance.c @@ -1156,11 +1156,3 @@ static void __exit atarilance_module_exit(void) module_init(atarilance_module_init); module_exit(atarilance_module_exit); #endif /* MODULE */ - - -/* - * Local variables: - * c-indent-level: 4 - * tab-width: 4 - * End: - */ diff --git a/drivers/net/ethernet/amd/pcnet32.c b/drivers/net/ethernet/amd/pcnet32.c index aa412506832d..4100ab07e6b7 100644 --- a/drivers/net/ethernet/amd/pcnet32.c +++ b/drivers/net/ethernet/amd/pcnet32.c @@ -3029,10 +3029,3 @@ static void __exit pcnet32_cleanup_module(void) module_init(pcnet32_init_module); module_exit(pcnet32_cleanup_module); - -/* - * Local variables: - * c-indent-level: 4 - * tab-width: 8 - * End: - */ diff --git a/drivers/net/wireless/intersil/hostap/hostap_proc.c b/drivers/net/wireless/intersil/hostap/hostap_proc.c index 97c270845fd1..51c847d98755 100644 --- a/drivers/net/wireless/intersil/hostap/hostap_proc.c +++ b/drivers/net/wireless/intersil/hostap/hostap_proc.c @@ -227,6 +227,7 @@ static ssize_t prism2_aux_dump_proc_no_read(struct file *file, char __user *buf, static const struct proc_ops prism2_aux_dump_proc_ops = { .proc_read = prism2_aux_dump_proc_no_read, + .proc_lseek = default_llseek, }; diff --git a/drivers/net/wireless/intersil/orinoco/orinoco_nortel.c b/drivers/net/wireless/intersil/orinoco/orinoco_nortel.c index 96a03d10a080..18bd0d9876c2 100644 --- a/drivers/net/wireless/intersil/orinoco/orinoco_nortel.c +++ b/drivers/net/wireless/intersil/orinoco/orinoco_nortel.c @@ -312,11 +312,3 @@ static void __exit orinoco_nortel_exit(void) module_init(orinoco_nortel_init); module_exit(orinoco_nortel_exit); - -/* - * Local variables: - * c-indent-level: 8 - * c-basic-offset: 8 - * tab-width: 8 - * End: - */ diff --git a/drivers/net/wireless/intersil/orinoco/orinoco_pci.c b/drivers/net/wireless/intersil/orinoco/orinoco_pci.c index f3c86b07b1b9..7e3a6dd60c15 100644 --- a/drivers/net/wireless/intersil/orinoco/orinoco_pci.c +++ b/drivers/net/wireless/intersil/orinoco/orinoco_pci.c @@ -255,11 +255,3 @@ static void __exit orinoco_pci_exit(void) module_init(orinoco_pci_init); module_exit(orinoco_pci_exit); - -/* - * Local variables: - * c-indent-level: 8 - * c-basic-offset: 8 - * tab-width: 8 - * End: - */ diff --git a/drivers/net/wireless/intersil/orinoco/orinoco_plx.c b/drivers/net/wireless/intersil/orinoco/orinoco_plx.c index 16dada94c774..73e6ae124013 100644 --- a/drivers/net/wireless/intersil/orinoco/orinoco_plx.c +++ b/drivers/net/wireless/intersil/orinoco/orinoco_plx.c @@ -360,11 +360,3 @@ static void __exit orinoco_plx_exit(void) module_init(orinoco_plx_init); module_exit(orinoco_plx_exit); - -/* - * Local variables: - * c-indent-level: 8 - * c-basic-offset: 8 - * tab-width: 8 - * End: - */ diff --git a/drivers/net/wireless/intersil/orinoco/orinoco_tmd.c b/drivers/net/wireless/intersil/orinoco/orinoco_tmd.c index 9a9d335611ac..939d5a1dce97 100644 --- a/drivers/net/wireless/intersil/orinoco/orinoco_tmd.c +++ b/drivers/net/wireless/intersil/orinoco/orinoco_tmd.c @@ -235,11 +235,3 @@ static void __exit orinoco_tmd_exit(void) module_init(orinoco_tmd_init); module_exit(orinoco_tmd_exit); - -/* - * Local variables: - * c-indent-level: 8 - * c-basic-offset: 8 - * tab-width: 8 - * End: - */ diff --git a/drivers/nvdimm/btt.c b/drivers/nvdimm/btt.c index 41aa1f01fc07..18a267d5073f 100644 --- a/drivers/nvdimm/btt.c +++ b/drivers/nvdimm/btt.c @@ -6,6 +6,7 @@ #include <linux/highmem.h> #include <linux/debugfs.h> #include <linux/blkdev.h> +#include <linux/pagemap.h> #include <linux/module.h> #include <linux/device.h> #include <linux/mutex.h> diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c index 7daac795db39..ed10a8b66068 100644 --- a/drivers/nvdimm/pmem.c +++ b/drivers/nvdimm/pmem.c @@ -8,6 +8,7 @@ */ #include <linux/blkdev.h> +#include <linux/pagemap.h> #include <linux/hdreg.h> #include <linux/init.h> #include <linux/platform_device.h> diff --git a/drivers/parport/parport_ip32.c b/drivers/parport/parport_ip32.c index 48b084e86dc6..0919ed99ba94 100644 --- a/drivers/parport/parport_ip32.c +++ b/drivers/parport/parport_ip32.c @@ -2224,15 +2224,3 @@ MODULE_PARM_DESC(features, ", bit 2: hardware SPP mode" ", bit 3: hardware EPP mode" ", bit 4: hardware ECP mode"); - -/*--- Inform (X)Emacs about preferred coding style ---------------------*/ -/* - * Local Variables: - * mode: c - * c-file-style: "linux" - * indent-tabs-mode: t - * tab-width: 8 - * fill-column: 78 - * ispell-local-dictionary: "american" - * End: - */ diff --git a/drivers/platform/x86/dell/dell_rbu.c b/drivers/platform/x86/dell/dell_rbu.c index 03c3ff34bcf5..085ad0a0d22e 100644 --- a/drivers/platform/x86/dell/dell_rbu.c +++ b/drivers/platform/x86/dell/dell_rbu.c @@ -675,6 +675,3 @@ static __exit void dcdrbu_exit(void) module_exit(dcdrbu_exit); module_init(dcdrbu_init); - -/* vim:noet:ts=8:sw=8 -*/ diff --git a/drivers/scsi/53c700.c b/drivers/scsi/53c700.c index ab42feab233f..77ccb96e5ed4 100644 --- a/drivers/scsi/53c700.c +++ b/drivers/scsi/53c700.c @@ -1,5 +1,4 @@ // SPDX-License-Identifier: GPL-2.0-or-later -/* -*- mode: c; c-basic-offset: 8 -*- */ /* NCR (or Symbios) 53c700 and 53c700-66 Driver * diff --git a/drivers/scsi/53c700.h b/drivers/scsi/53c700.h index c9f8c497babb..2df347ca91af 100644 --- a/drivers/scsi/53c700.h +++ b/drivers/scsi/53c700.h @@ -1,5 +1,4 @@ /* SPDX-License-Identifier: GPL-2.0 */ -/* -*- mode: c; c-basic-offset: 8 -*- */ /* Driver for 53c700 and 53c700-66 chips from NCR and Symbios * diff --git a/drivers/scsi/ch.c b/drivers/scsi/ch.c index cb74ab1ae5a4..9b89c26ccfdb 100644 --- a/drivers/scsi/ch.c +++ b/drivers/scsi/ch.c @@ -1058,9 +1058,3 @@ static void __exit exit_ch_module(void) module_init(init_ch_module); module_exit(exit_ch_module); - -/* - * Local variables: - * c-basic-offset: 8 - * End: - */ diff --git a/drivers/scsi/esas2r/esas2r_main.c b/drivers/scsi/esas2r/esas2r_main.c index 5d9eeac6717a..45ec9f16c085 100644 --- a/drivers/scsi/esas2r/esas2r_main.c +++ b/drivers/scsi/esas2r/esas2r_main.c @@ -616,6 +616,7 @@ static const struct file_operations esas2r_proc_fops = { }; static const struct proc_ops esas2r_proc_ops = { + .proc_lseek = default_llseek, .proc_ioctl = esas2r_proc_ioctl, #ifdef CONFIG_COMPAT .proc_compat_ioctl = compat_ptr_ioctl, diff --git a/drivers/scsi/ips.c b/drivers/scsi/ips.c index 1a3c534826ba..bc33d54a4011 100644 --- a/drivers/scsi/ips.c +++ b/drivers/scsi/ips.c @@ -7099,23 +7099,3 @@ ips_init_phase2(int index) MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("IBM ServeRAID Adapter Driver " IPS_VER_STRING); MODULE_VERSION(IPS_VER_STRING); - - -/* - * Overrides for Emacs so that we almost follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-indent-level: 2 - * c-brace-imaginary-offset: 0 - * c-brace-offset: -2 - * c-argdecl-indent: 2 - * c-label-offset: -2 - * c-continued-statement-offset: 2 - * c-continued-brace-offset: 0 - * indent-tabs-mode: nil - * tab-width: 8 - * End: - */ diff --git a/drivers/scsi/ips.h b/drivers/scsi/ips.h index 6c0678fb9a67..65edf000e447 100644 --- a/drivers/scsi/ips.h +++ b/drivers/scsi/ips.h @@ -1211,23 +1211,3 @@ typedef struct { IPS_COMPAT_TAMPA, \ IPS_COMPAT_KEYWEST \ } - - -/* - * Overrides for Emacs so that we almost follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-indent-level: 2 - * c-brace-imaginary-offset: 0 - * c-brace-offset: -2 - * c-argdecl-indent: 2 - * c-label-offset: -2 - * c-continued-statement-offset: 2 - * c-continued-brace-offset: 0 - * indent-tabs-mode: nil - * tab-width: 8 - * End: - */ diff --git a/drivers/scsi/lasi700.c b/drivers/scsi/lasi700.c index de71d240a56f..6d14a7a94d0b 100644 --- a/drivers/scsi/lasi700.c +++ b/drivers/scsi/lasi700.c @@ -1,5 +1,4 @@ // SPDX-License-Identifier: GPL-2.0-or-later -/* -*- mode: c; c-basic-offset: 8 -*- */ /* PARISC LASI driver for the 53c700 chip * diff --git a/drivers/scsi/megaraid/mbox_defs.h b/drivers/scsi/megaraid/mbox_defs.h index 01a1bfb8ea2a..f0ef8f7f82c1 100644 --- a/drivers/scsi/megaraid/mbox_defs.h +++ b/drivers/scsi/megaraid/mbox_defs.h @@ -781,5 +781,3 @@ typedef struct { } __attribute__ ((packed)) mbox_sgl32; #endif // _MRAID_MBOX_DEFS_H_ - -/* vim: set ts=8 sw=8 tw=78: */ diff --git a/drivers/scsi/megaraid/mega_common.h b/drivers/scsi/megaraid/mega_common.h index 3a7596e47a88..2ad0aa2f837d 100644 --- a/drivers/scsi/megaraid/mega_common.h +++ b/drivers/scsi/megaraid/mega_common.h @@ -282,5 +282,3 @@ struct mraid_pci_blk { }; #endif // _MEGA_COMMON_H_ - -// vim: set ts=8 sw=8 tw=78: diff --git a/drivers/scsi/megaraid/megaraid_mbox.c b/drivers/scsi/megaraid/megaraid_mbox.c index b1a2d3536add..145fde302d7d 100644 --- a/drivers/scsi/megaraid/megaraid_mbox.c +++ b/drivers/scsi/megaraid/megaraid_mbox.c @@ -4068,5 +4068,3 @@ megaraid_sysfs_show_ldnum(struct device *dev, struct device_attribute *attr, cha */ module_init(megaraid_init); module_exit(megaraid_exit); - -/* vim: set ts=8 sw=8 tw=78 ai si: */ diff --git a/drivers/scsi/megaraid/megaraid_mbox.h b/drivers/scsi/megaraid/megaraid_mbox.h index 3e4347c6dab1..d2fe7f69cd5d 100644 --- a/drivers/scsi/megaraid/megaraid_mbox.h +++ b/drivers/scsi/megaraid/megaraid_mbox.h @@ -230,5 +230,3 @@ typedef struct { #define WROUTDOOR(rdev, value) writel(value, (rdev)->baseaddr + 0x2C) #endif // _MEGARAID_H_ - -// vim: set ts=8 sw=8 tw=78: diff --git a/drivers/scsi/qla1280.c b/drivers/scsi/qla1280.c index 8f35174a1f9a..928da90b79be 100644 --- a/drivers/scsi/qla1280.c +++ b/drivers/scsi/qla1280.c @@ -4403,15 +4403,3 @@ MODULE_FIRMWARE("qlogic/1040.bin"); MODULE_FIRMWARE("qlogic/1280.bin"); MODULE_FIRMWARE("qlogic/12160.bin"); MODULE_VERSION(QLA1280_VERSION); - -/* - * Overrides for Emacs so that we almost follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-basic-offset: 8 - * tab-width: 8 - * End: - */ diff --git a/drivers/scsi/scsicam.c b/drivers/scsi/scsicam.c index f1553a453616..0ffdb8f2995f 100644 --- a/drivers/scsi/scsicam.c +++ b/drivers/scsi/scsicam.c @@ -17,6 +17,7 @@ #include <linux/genhd.h> #include <linux/kernel.h> #include <linux/blkdev.h> +#include <linux/pagemap.h> #include <linux/msdos_partition.h> #include <asm/unaligned.h> diff --git a/drivers/scsi/sni_53c710.c b/drivers/scsi/sni_53c710.c index 97c6f81b1d2a..678651b9b4dd 100644 --- a/drivers/scsi/sni_53c710.c +++ b/drivers/scsi/sni_53c710.c @@ -1,5 +1,4 @@ // SPDX-License-Identifier: GPL-2.0-or-later -/* -*- mode: c; c-basic-offset: 8 -*- */ /* SNI RM driver * diff --git a/drivers/video/fbdev/matrox/matroxfb_base.c b/drivers/video/fbdev/matrox/matroxfb_base.c index a3853421b263..4325bf7f388c 100644 --- a/drivers/video/fbdev/matrox/matroxfb_base.c +++ b/drivers/video/fbdev/matrox/matroxfb_base.c @@ -2608,12 +2608,3 @@ EXPORT_SYMBOL(matroxfb_register_driver); EXPORT_SYMBOL(matroxfb_unregister_driver); EXPORT_SYMBOL(matroxfb_wait_for_sync); EXPORT_SYMBOL(matroxfb_enable_irq); - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * --------------------------------------------------------------------------- - * Local variables: - * c-basic-offset: 8 - * End: - */ - diff --git a/drivers/video/fbdev/vga16fb.c b/drivers/video/fbdev/vga16fb.c index 1e8a38a7967d..e2757ff1c23d 100644 --- a/drivers/video/fbdev/vga16fb.c +++ b/drivers/video/fbdev/vga16fb.c @@ -1451,13 +1451,3 @@ MODULE_DESCRIPTION("Legacy VGA framebuffer device driver"); MODULE_LICENSE("GPL"); module_init(vga16fb_init); module_exit(vga16fb_exit); - - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * --------------------------------------------------------------------------- - * Local variables: - * c-basic-offset: 8 - * End: - */ - diff --git a/fs/configfs/configfs_internal.h b/fs/configfs/configfs_internal.h index 9a3aed249692..c0395363eab9 100644 --- a/fs/configfs/configfs_internal.h +++ b/fs/configfs/configfs_internal.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-or-later */ -/* -*- mode: c; c-basic-offset:8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * configfs_internal.h - Internal stuff for configfs * * Based on sysfs: diff --git a/fs/configfs/dir.c b/fs/configfs/dir.c index b6098e02e20b..ac5e0c0e9181 100644 --- a/fs/configfs/dir.c +++ b/fs/configfs/dir.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-or-later -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * dir.c - Operations for configfs directories. * * Based on sysfs: diff --git a/fs/configfs/file.c b/fs/configfs/file.c index da8351d1e455..e26060dae70a 100644 --- a/fs/configfs/file.c +++ b/fs/configfs/file.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-or-later -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * file.c - operations for regular (text) files. * * Based on sysfs: diff --git a/fs/configfs/inode.c b/fs/configfs/inode.c index 42c348bb2903..eb5ec3e46283 100644 --- a/fs/configfs/inode.c +++ b/fs/configfs/inode.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-or-later -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * inode.c - basic inode and dentry operations. * * Based on sysfs: diff --git a/fs/configfs/item.c b/fs/configfs/item.c index 704a4356f137..254170a82aa3 100644 --- a/fs/configfs/item.c +++ b/fs/configfs/item.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-or-later -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * item.c - library routines for handling generic config items * * Based on kobject: diff --git a/fs/configfs/mount.c b/fs/configfs/mount.c index 0c6e8cf61953..c2d820063ec4 100644 --- a/fs/configfs/mount.c +++ b/fs/configfs/mount.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-or-later -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * mount.c - operations for initializing and mounting configfs. * * Based on sysfs: diff --git a/fs/configfs/symlink.c b/fs/configfs/symlink.c index 77c854364e60..0623c3edcfb9 100644 --- a/fs/configfs/symlink.c +++ b/fs/configfs/symlink.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-or-later -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * symlink.c - operations for configfs symlinks. * * Based on sysfs: diff --git a/fs/eventpoll.c b/fs/eventpoll.c index 73138ea68342..1e596e1d0bba 100644 --- a/fs/eventpoll.c +++ b/fs/eventpoll.c @@ -657,6 +657,12 @@ static void ep_done_scan(struct eventpoll *ep, */ list_splice(txlist, &ep->rdllist); __pm_relax(ep->ws); + + if (!list_empty(&ep->rdllist)) { + if (waitqueue_active(&ep->wq)) + wake_up(&ep->wq); + } + write_unlock_irq(&ep->lock); } diff --git a/fs/fat/fatent.c b/fs/fat/fatent.c index f7e3304b7802..860e884e56e8 100644 --- a/fs/fat/fatent.c +++ b/fs/fat/fatent.c @@ -771,7 +771,7 @@ int fat_trim_fs(struct inode *inode, struct fstrim_range *range) /* * FAT data is organized as clusters, trim at the granulary of cluster. * - * fstrim_range is in byte, convert vaules to cluster index. + * fstrim_range is in byte, convert values to cluster index. * Treat sectors before data region as all used, not to trim them. */ ent_start = max_t(u64, range->start>>sbi->cluster_bits, FAT_START_ENT); diff --git a/fs/hpfs/hpfs.h b/fs/hpfs/hpfs.h index 302f45101a96..d92c4af3e1b4 100644 --- a/fs/hpfs/hpfs.h +++ b/fs/hpfs/hpfs.h @@ -356,7 +356,8 @@ struct hpfs_dirent { u8 no_of_acls; /* number of ACL's (low 3 bits) */ u8 ix; /* code page index (of filename), see struct code_page_data */ - u8 namelen, name[1]; /* file name */ + u8 namelen; /* file name length */ + u8 name[]; /* file name */ /* dnode_secno down; btree down pointer, if present, follows name on next word boundary, or maybe it precedes next dirent, which is on a word boundary. */ diff --git a/fs/isofs/rock.c b/fs/isofs/rock.c index 94ef92fe806c..4880146babaf 100644 --- a/fs/isofs/rock.c +++ b/fs/isofs/rock.c @@ -767,6 +767,7 @@ repeat: rs.cont_extent = isonum_733(rr->u.CE.extent); rs.cont_offset = isonum_733(rr->u.CE.offset); rs.cont_size = isonum_733(rr->u.CE.size); + break; default: break; } diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index fc4f490f2d78..3d8e3698d3df 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -3004,10 +3004,3 @@ out_notsup: goto out; } EXPORT_SYMBOL_GPL(nfs_permission); - -/* - * Local variables: - * version-control: t - * kept-new-versions: 5 - * End: - */ diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index c65c4b41e2c1..545010d6cbf3 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -10427,9 +10427,3 @@ const struct xattr_handler *nfs4_xattr_handlers[] = { #endif NULL }; - -/* - * Local variables: - * c-basic-offset: 8 - * End: - */ diff --git a/fs/nfs/nfs4renewd.c b/fs/nfs/nfs4renewd.c index ff876dda7f06..db3811af0796 100644 --- a/fs/nfs/nfs4renewd.c +++ b/fs/nfs/nfs4renewd.c @@ -149,9 +149,3 @@ void nfs4_set_lease_period(struct nfs_client *clp, /* Cap maximum reconnect timeout at 1/2 lease period */ rpc_set_connect_timeout(clp->cl_rpcclient, lease, lease >> 1); } - -/* - * Local variables: - * c-basic-offset: 8 - * End: - */ diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c index 3a51351bdc6a..2eec5bbb55c8 100644 --- a/fs/nfs/nfs4state.c +++ b/fs/nfs/nfs4state.c @@ -2695,9 +2695,3 @@ static int nfs4_run_state_manager(void *ptr) module_put_and_exit(0); return 0; } - -/* - * Local variables: - * c-basic-offset: 8 - * End: - */ diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c index ac6b79ee9355..d4fd3be0e8ca 100644 --- a/fs/nfs/nfs4xdr.c +++ b/fs/nfs/nfs4xdr.c @@ -7629,9 +7629,3 @@ const struct rpc_version nfs_version4 = { .procs = nfs4_procedures, .counts = nfs_version4_counts, }; - -/* - * Local variables: - * c-basic-offset: 8 - * End: - */ diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c index daf43b980d4b..f4ce93d7f26e 100644 --- a/fs/nfsd/nfs4proc.c +++ b/fs/nfsd/nfs4proc.c @@ -3317,9 +3317,3 @@ const struct svc_version nfsd_version4 = { .vs_rpcb_optnl = true, .vs_need_cong_ctrl = true, }; - -/* - * Local variables: - * c-basic-offset: 8 - * End: - */ diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c index e0f06d3cbd44..7abeccb975b2 100644 --- a/fs/nfsd/nfs4xdr.c +++ b/fs/nfsd/nfs4xdr.c @@ -5448,9 +5448,3 @@ nfs4svc_encode_compoundres(struct svc_rqst *rqstp, __be32 *p) nfsd4_sequence_done(resp); return 1; } - -/* - * Local variables: - * c-basic-offset: 8 - * End: - */ diff --git a/fs/nfsd/xdr4.h b/fs/nfsd/xdr4.h index fe540a3415c6..a7c425254fee 100644 --- a/fs/nfsd/xdr4.h +++ b/fs/nfsd/xdr4.h @@ -866,9 +866,3 @@ struct nfsd4_operation { #endif - -/* - * Local variables: - * c-basic-offset: 8 - * End: - */ diff --git a/fs/nilfs2/cpfile.c b/fs/nilfs2/cpfile.c index 025fb082575a..ce144776b4ef 100644 --- a/fs/nilfs2/cpfile.c +++ b/fs/nilfs2/cpfile.c @@ -293,7 +293,7 @@ void nilfs_cpfile_put_checkpoint(struct inode *cpfile, __u64 cno, * nilfs_cpfile_delete_checkpoints - delete checkpoints * @cpfile: inode of checkpoint file * @start: start checkpoint number - * @end: end checkpoint numer + * @end: end checkpoint number * * Description: nilfs_cpfile_delete_checkpoints() deletes the checkpoints in * the period from @start to @end, excluding @end itself. The checkpoints diff --git a/fs/nilfs2/ioctl.c b/fs/nilfs2/ioctl.c index 3fcb9357bbfd..640ac8fe891e 100644 --- a/fs/nilfs2/ioctl.c +++ b/fs/nilfs2/ioctl.c @@ -1043,7 +1043,7 @@ out: * @inode: inode object * @argp: pointer on argument from userspace * - * Decription: nilfs_ioctl_trim_fs is the FITRIM ioctl handle function. It + * Description: nilfs_ioctl_trim_fs is the FITRIM ioctl handle function. It * checks the arguments from userspace and calls nilfs_sufile_trim_fs, which * performs the actual trim operation. * @@ -1085,7 +1085,7 @@ static int nilfs_ioctl_trim_fs(struct inode *inode, void __user *argp) * @inode: inode object * @argp: pointer on argument from userspace * - * Decription: nilfs_ioctl_set_alloc_range() function defines lower limit + * Description: nilfs_ioctl_set_alloc_range() function defines lower limit * of segments in bytes and upper limit of segments in bytes. * The NILFS_IOCTL_SET_ALLOC_RANGE is used by nilfs_resize utility. * diff --git a/fs/nilfs2/segment.c b/fs/nilfs2/segment.c index cd4da9535aed..686c8ee7b29c 100644 --- a/fs/nilfs2/segment.c +++ b/fs/nilfs2/segment.c @@ -2214,7 +2214,7 @@ static void nilfs_segctor_wakeup(struct nilfs_sc_info *sci, int err) * nilfs_construct_segment - construct a logical segment * @sb: super block * - * Return Value: On success, 0 is retured. On errors, one of the following + * Return Value: On success, 0 is returned. On errors, one of the following * negative error code is returned. * * %-EROFS - Read only filesystem. @@ -2251,7 +2251,7 @@ int nilfs_construct_segment(struct super_block *sb) * @start: start byte offset * @end: end byte offset (inclusive) * - * Return Value: On success, 0 is retured. On errors, one of the following + * Return Value: On success, 0 is returned. On errors, one of the following * negative error code is returned. * * %-EROFS - Read only filesystem. diff --git a/fs/nilfs2/the_nilfs.c b/fs/nilfs2/the_nilfs.c index 221a1cc597f0..8b7b01a380ce 100644 --- a/fs/nilfs2/the_nilfs.c +++ b/fs/nilfs2/the_nilfs.c @@ -195,7 +195,7 @@ static int nilfs_store_log_cursor(struct the_nilfs *nilfs, /** * load_nilfs - load and recover the nilfs * @nilfs: the_nilfs structure to be released - * @sb: super block isntance used to recover past segment + * @sb: super block instance used to recover past segment * * load_nilfs() searches and load the latest super root, * attaches the last segment, and does recovery if needed. diff --git a/fs/ocfs2/acl.c b/fs/ocfs2/acl.c index 5259badabb56..5c72a7e6d6c5 100644 --- a/fs/ocfs2/acl.c +++ b/fs/ocfs2/acl.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-only -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * acl.c * * Copyright (C) 2004, 2008 Oracle. All rights reserved. diff --git a/fs/ocfs2/acl.h b/fs/ocfs2/acl.h index 4e86450917b2..f59d8d0a61fa 100644 --- a/fs/ocfs2/acl.h +++ b/fs/ocfs2/acl.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-only */ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * acl.h * * Copyright (C) 2004, 2008 Oracle. All rights reserved. diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c index 78710788c237..e032f2e2c2c5 100644 --- a/fs/ocfs2/alloc.c +++ b/fs/ocfs2/alloc.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-or-later -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * alloc.c * * Extent allocs and frees diff --git a/fs/ocfs2/alloc.h b/fs/ocfs2/alloc.h index 7f973dd76dbc..4af7abaa6e40 100644 --- a/fs/ocfs2/alloc.h +++ b/fs/ocfs2/alloc.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-or-later */ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * alloc.h * * Function prototypes diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c index ad20403b383f..1294925ac94a 100644 --- a/fs/ocfs2/aops.c +++ b/fs/ocfs2/aops.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-or-later -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * Copyright (C) 2002, 2004 Oracle. All rights reserved. */ diff --git a/fs/ocfs2/aops.h b/fs/ocfs2/aops.h index 70ed4382750d..3a520117fa59 100644 --- a/fs/ocfs2/aops.h +++ b/fs/ocfs2/aops.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-or-later */ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * Copyright (C) 2002, 2004, 2005 Oracle. All rights reserved. */ diff --git a/fs/ocfs2/blockcheck.c b/fs/ocfs2/blockcheck.c index dabfef9c2bc0..863a5316030b 100644 --- a/fs/ocfs2/blockcheck.c +++ b/fs/ocfs2/blockcheck.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-only -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * blockcheck.c * * Checksum and ECC codes for the OCFS2 userspace library. diff --git a/fs/ocfs2/blockcheck.h b/fs/ocfs2/blockcheck.h index 8f17d2c85f40..d0578e98ee8d 100644 --- a/fs/ocfs2/blockcheck.h +++ b/fs/ocfs2/blockcheck.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-only */ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * blockcheck.h * * Checksum and ECC codes for the OCFS2 userspace library. diff --git a/fs/ocfs2/buffer_head_io.c b/fs/ocfs2/buffer_head_io.c index f0b104e483d8..e7758778abef 100644 --- a/fs/ocfs2/buffer_head_io.c +++ b/fs/ocfs2/buffer_head_io.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-or-later -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * io.c * * Buffer cache handling diff --git a/fs/ocfs2/buffer_head_io.h b/fs/ocfs2/buffer_head_io.h index 1c5e533fba04..2d51649fc090 100644 --- a/fs/ocfs2/buffer_head_io.h +++ b/fs/ocfs2/buffer_head_io.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-or-later */ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * ocfs2_buffer_head.h * * Buffer cache handling functions defined diff --git a/fs/ocfs2/cluster/heartbeat.c b/fs/ocfs2/cluster/heartbeat.c index 12a7590601dd..e829c2595543 100644 --- a/fs/ocfs2/cluster/heartbeat.c +++ b/fs/ocfs2/cluster/heartbeat.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-or-later -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * Copyright (C) 2004, 2005 Oracle. All rights reserved. */ diff --git a/fs/ocfs2/cluster/heartbeat.h b/fs/ocfs2/cluster/heartbeat.h index beed31ea86cf..1d4100abf6f8 100644 --- a/fs/ocfs2/cluster/heartbeat.h +++ b/fs/ocfs2/cluster/heartbeat.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-or-later */ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * heartbeat.h * * Function prototypes diff --git a/fs/ocfs2/cluster/masklog.c b/fs/ocfs2/cluster/masklog.c index 1d696c96b8b2..810d32815593 100644 --- a/fs/ocfs2/cluster/masklog.c +++ b/fs/ocfs2/cluster/masklog.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-or-later -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * Copyright (C) 2004, 2005 Oracle. All rights reserved. */ diff --git a/fs/ocfs2/cluster/masklog.h b/fs/ocfs2/cluster/masklog.h index 446e452ac7a6..b73fc42e46ff 100644 --- a/fs/ocfs2/cluster/masklog.h +++ b/fs/ocfs2/cluster/masklog.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-or-later */ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * Copyright (C) 2005 Oracle. All rights reserved. */ diff --git a/fs/ocfs2/cluster/netdebug.c b/fs/ocfs2/cluster/netdebug.c index 667a5c5e1f66..7524994e3199 100644 --- a/fs/ocfs2/cluster/netdebug.c +++ b/fs/ocfs2/cluster/netdebug.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-or-later -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * netdebug.c * * debug functionality for o2net diff --git a/fs/ocfs2/cluster/nodemanager.c b/fs/ocfs2/cluster/nodemanager.c index 7a7640c59f3c..bb82e6b1ff4e 100644 --- a/fs/ocfs2/cluster/nodemanager.c +++ b/fs/ocfs2/cluster/nodemanager.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-or-later -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * Copyright (C) 2004, 2005 Oracle. All rights reserved. */ diff --git a/fs/ocfs2/cluster/nodemanager.h b/fs/ocfs2/cluster/nodemanager.h index 3e0006631cc4..3490e77a952d 100644 --- a/fs/ocfs2/cluster/nodemanager.h +++ b/fs/ocfs2/cluster/nodemanager.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-or-later */ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * nodemanager.h * * Function prototypes diff --git a/fs/ocfs2/cluster/ocfs2_heartbeat.h b/fs/ocfs2/cluster/ocfs2_heartbeat.h index 760d850be11e..6088c9f974dd 100644 --- a/fs/ocfs2/cluster/ocfs2_heartbeat.h +++ b/fs/ocfs2/cluster/ocfs2_heartbeat.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-or-later */ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * ocfs2_heartbeat.h * * On-disk structures for ocfs2_heartbeat diff --git a/fs/ocfs2/cluster/ocfs2_nodemanager.h b/fs/ocfs2/cluster/ocfs2_nodemanager.h index 21ad307419a8..c9a0b77443e7 100644 --- a/fs/ocfs2/cluster/ocfs2_nodemanager.h +++ b/fs/ocfs2/cluster/ocfs2_nodemanager.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-or-later */ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * ocfs2_nodemanager.h * * Header describing the interface between userspace and the kernel diff --git a/fs/ocfs2/cluster/quorum.c b/fs/ocfs2/cluster/quorum.c index cea739be77c4..189c111bc371 100644 --- a/fs/ocfs2/cluster/quorum.c +++ b/fs/ocfs2/cluster/quorum.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-or-later -/* -*- mode: c; c-basic-offset: 8; -*- - * - * vim: noexpandtab sw=8 ts=8 sts=0: +/* * * Copyright (C) 2005 Oracle. All rights reserved. */ diff --git a/fs/ocfs2/cluster/quorum.h b/fs/ocfs2/cluster/quorum.h index 6d45ce8b18a1..d64bf4482a4a 100644 --- a/fs/ocfs2/cluster/quorum.h +++ b/fs/ocfs2/cluster/quorum.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-or-later */ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * Copyright (C) 2005 Oracle. All rights reserved. */ diff --git a/fs/ocfs2/cluster/sys.c b/fs/ocfs2/cluster/sys.c index d6067c3d84c1..022f716c74ff 100644 --- a/fs/ocfs2/cluster/sys.c +++ b/fs/ocfs2/cluster/sys.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-only -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * sys.c * * OCFS2 cluster sysfs interface diff --git a/fs/ocfs2/cluster/sys.h b/fs/ocfs2/cluster/sys.h index ce380517cf17..70aaba65317e 100644 --- a/fs/ocfs2/cluster/sys.h +++ b/fs/ocfs2/cluster/sys.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-only */ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * sys.h * * Function prototypes for o2cb sysfs interface diff --git a/fs/ocfs2/cluster/tcp.c b/fs/ocfs2/cluster/tcp.c index 3bd8119bed5e..f660c0dbdb63 100644 --- a/fs/ocfs2/cluster/tcp.c +++ b/fs/ocfs2/cluster/tcp.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-or-later -/* -*- mode: c; c-basic-offset: 8; -*- - * - * vim: noexpandtab sw=8 ts=8 sts=0: +/* * * Copyright (C) 2004 Oracle. All rights reserved. * diff --git a/fs/ocfs2/cluster/tcp.h b/fs/ocfs2/cluster/tcp.h index 736338f45c59..a75b551d31c7 100644 --- a/fs/ocfs2/cluster/tcp.h +++ b/fs/ocfs2/cluster/tcp.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-or-later */ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * tcp.h * * Function prototypes diff --git a/fs/ocfs2/cluster/tcp_internal.h b/fs/ocfs2/cluster/tcp_internal.h index e6a2b9dfcd16..601c99bd2611 100644 --- a/fs/ocfs2/cluster/tcp_internal.h +++ b/fs/ocfs2/cluster/tcp_internal.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-or-later */ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * Copyright (C) 2005 Oracle. All rights reserved. */ diff --git a/fs/ocfs2/dcache.c b/fs/ocfs2/dcache.c index 42a61eecdacd..04fc8344063a 100644 --- a/fs/ocfs2/dcache.c +++ b/fs/ocfs2/dcache.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-or-later -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * dcache.c * * dentry cache handling code diff --git a/fs/ocfs2/dcache.h b/fs/ocfs2/dcache.h index 3686a52ba143..7f246c5692d8 100644 --- a/fs/ocfs2/dcache.h +++ b/fs/ocfs2/dcache.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-or-later */ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * dcache.h * * Function prototypes diff --git a/fs/ocfs2/dir.c b/fs/ocfs2/dir.c index bdfba9db558a..bd8d534f11cb 100644 --- a/fs/ocfs2/dir.c +++ b/fs/ocfs2/dir.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-or-later -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * dir.c * * Creates, reads, walks and deletes directory-nodes diff --git a/fs/ocfs2/dir.h b/fs/ocfs2/dir.h index e3e7d5dd29e8..4b9f5a12c7d2 100644 --- a/fs/ocfs2/dir.h +++ b/fs/ocfs2/dir.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-or-later */ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * dir.h * * Function prototypes diff --git a/fs/ocfs2/dlm/dlmapi.h b/fs/ocfs2/dlm/dlmapi.h index 6456c0fbcbb2..bae60ca2672a 100644 --- a/fs/ocfs2/dlm/dlmapi.h +++ b/fs/ocfs2/dlm/dlmapi.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-or-later */ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * dlmapi.h * * externally exported dlm interfaces diff --git a/fs/ocfs2/dlm/dlmast.c b/fs/ocfs2/dlm/dlmast.c index 70a10764f249..c681ba957932 100644 --- a/fs/ocfs2/dlm/dlmast.c +++ b/fs/ocfs2/dlm/dlmast.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-or-later -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * dlmast.c * * AST and BAST functionality for local and remote nodes diff --git a/fs/ocfs2/dlm/dlmcommon.h b/fs/ocfs2/dlm/dlmcommon.h index 58d57e25d384..fd2022712167 100644 --- a/fs/ocfs2/dlm/dlmcommon.h +++ b/fs/ocfs2/dlm/dlmcommon.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-or-later */ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * dlmcommon.h * * Copyright (C) 2004 Oracle. All rights reserved. diff --git a/fs/ocfs2/dlm/dlmconvert.c b/fs/ocfs2/dlm/dlmconvert.c index 6051edc33aef..450d46eefab3 100644 --- a/fs/ocfs2/dlm/dlmconvert.c +++ b/fs/ocfs2/dlm/dlmconvert.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-or-later -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * dlmconvert.c * * underlying calls for lock conversion diff --git a/fs/ocfs2/dlm/dlmconvert.h b/fs/ocfs2/dlm/dlmconvert.h index 12d9c28bc52f..1f371716513b 100644 --- a/fs/ocfs2/dlm/dlmconvert.h +++ b/fs/ocfs2/dlm/dlmconvert.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-or-later */ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * dlmconvert.h * * Copyright (C) 2004 Oracle. All rights reserved. diff --git a/fs/ocfs2/dlm/dlmdebug.c b/fs/ocfs2/dlm/dlmdebug.c index 4b8b41d23e91..d442cf5dda8a 100644 --- a/fs/ocfs2/dlm/dlmdebug.c +++ b/fs/ocfs2/dlm/dlmdebug.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-or-later -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * dlmdebug.c * * debug functionality for the dlm diff --git a/fs/ocfs2/dlm/dlmdebug.h b/fs/ocfs2/dlm/dlmdebug.h index f8fd8680a4b6..e08f7357e7ec 100644 --- a/fs/ocfs2/dlm/dlmdebug.h +++ b/fs/ocfs2/dlm/dlmdebug.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-or-later */ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * dlmdebug.h * * Copyright (C) 2008 Oracle. All rights reserved. diff --git a/fs/ocfs2/dlm/dlmdomain.c b/fs/ocfs2/dlm/dlmdomain.c index 357cfc702ce3..9f90fc9551e1 100644 --- a/fs/ocfs2/dlm/dlmdomain.c +++ b/fs/ocfs2/dlm/dlmdomain.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-or-later -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * dlmdomain.c * * defines domain join / leave apis diff --git a/fs/ocfs2/dlm/dlmdomain.h b/fs/ocfs2/dlm/dlmdomain.h index 7c21664d23d0..815abe30ad09 100644 --- a/fs/ocfs2/dlm/dlmdomain.h +++ b/fs/ocfs2/dlm/dlmdomain.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-or-later */ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * dlmdomain.h * * Copyright (C) 2004 Oracle. All rights reserved. diff --git a/fs/ocfs2/dlm/dlmlock.c b/fs/ocfs2/dlm/dlmlock.c index 83f0760e4fba..041fd1791ae7 100644 --- a/fs/ocfs2/dlm/dlmlock.c +++ b/fs/ocfs2/dlm/dlmlock.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-or-later -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * dlmlock.c * * underlying calls for lock creation diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c index f105746063ed..4960a6de768d 100644 --- a/fs/ocfs2/dlm/dlmmaster.c +++ b/fs/ocfs2/dlm/dlmmaster.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-or-later -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * dlmmod.c * * standalone DLM module diff --git a/fs/ocfs2/dlm/dlmrecovery.c b/fs/ocfs2/dlm/dlmrecovery.c index afc51736686c..0e7aad1b11cc 100644 --- a/fs/ocfs2/dlm/dlmrecovery.c +++ b/fs/ocfs2/dlm/dlmrecovery.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-or-later -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * dlmrecovery.c * * recovery stuff diff --git a/fs/ocfs2/dlm/dlmthread.c b/fs/ocfs2/dlm/dlmthread.c index 5ccc4ff0b82a..c350bd4df770 100644 --- a/fs/ocfs2/dlm/dlmthread.c +++ b/fs/ocfs2/dlm/dlmthread.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-or-later -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * dlmthread.c * * standalone DLM module diff --git a/fs/ocfs2/dlm/dlmunlock.c b/fs/ocfs2/dlm/dlmunlock.c index dcb17ca8ae74..61103b2d69fb 100644 --- a/fs/ocfs2/dlm/dlmunlock.c +++ b/fs/ocfs2/dlm/dlmunlock.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-or-later -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * dlmunlock.c * * underlying calls for unlocking locks diff --git a/fs/ocfs2/dlmfs/dlmfs.c b/fs/ocfs2/dlmfs/dlmfs.c index b2870f1a31df..fa0a14f199eb 100644 --- a/fs/ocfs2/dlmfs/dlmfs.c +++ b/fs/ocfs2/dlmfs/dlmfs.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-or-later -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * dlmfs.c * * Code which implements the kernel side of a minimal userspace diff --git a/fs/ocfs2/dlmfs/userdlm.c b/fs/ocfs2/dlmfs/userdlm.c index 339f098d9592..29f183a15798 100644 --- a/fs/ocfs2/dlmfs/userdlm.c +++ b/fs/ocfs2/dlmfs/userdlm.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-or-later -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * userdlm.c * * Code which implements the kernel side of a minimal userspace diff --git a/fs/ocfs2/dlmfs/userdlm.h b/fs/ocfs2/dlmfs/userdlm.h index 0558ae768200..47ba18eac423 100644 --- a/fs/ocfs2/dlmfs/userdlm.h +++ b/fs/ocfs2/dlmfs/userdlm.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-or-later */ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * userdlm.h * * Userspace dlm defines diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c index 0fbe8bf7190f..48fd369c29a4 100644 --- a/fs/ocfs2/dlmglue.c +++ b/fs/ocfs2/dlmglue.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-or-later -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * dlmglue.c * * Code which implements an OCFS2 specific interface to our DLM. diff --git a/fs/ocfs2/dlmglue.h b/fs/ocfs2/dlmglue.h index b8fbed25df89..e5da5809ed95 100644 --- a/fs/ocfs2/dlmglue.h +++ b/fs/ocfs2/dlmglue.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-or-later */ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * dlmglue.h * * description here diff --git a/fs/ocfs2/export.c b/fs/ocfs2/export.c index 69ed278dd84d..eaa8c80ace3c 100644 --- a/fs/ocfs2/export.c +++ b/fs/ocfs2/export.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-or-later -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * export.c * * Functions to facilitate NFS exporting diff --git a/fs/ocfs2/export.h b/fs/ocfs2/export.h index d485da0c3439..636357400505 100644 --- a/fs/ocfs2/export.h +++ b/fs/ocfs2/export.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-or-later */ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * export.h * * Function prototypes diff --git a/fs/ocfs2/extent_map.c b/fs/ocfs2/extent_map.c index 7b93e9c766f6..70a768b623cf 100644 --- a/fs/ocfs2/extent_map.c +++ b/fs/ocfs2/extent_map.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-only -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * extent_map.c * * Block/Cluster mapping functions diff --git a/fs/ocfs2/extent_map.h b/fs/ocfs2/extent_map.h index e5464f6cee8a..bc4ed59fb925 100644 --- a/fs/ocfs2/extent_map.h +++ b/fs/ocfs2/extent_map.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-only */ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * extent_map.h * * In-memory file extent mappings for OCFS2. diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c index db8a6265b749..f17c3d33fb18 100644 --- a/fs/ocfs2/file.c +++ b/fs/ocfs2/file.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-or-later -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * file.c * * File open, close, extend, truncate diff --git a/fs/ocfs2/file.h b/fs/ocfs2/file.h index 8536cec5f122..71db8f3aa027 100644 --- a/fs/ocfs2/file.h +++ b/fs/ocfs2/file.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-or-later */ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * file.h * * Function prototypes diff --git a/fs/ocfs2/filecheck.c b/fs/ocfs2/filecheck.c index 50f11bfdc8c2..90b8d300c1ee 100644 --- a/fs/ocfs2/filecheck.c +++ b/fs/ocfs2/filecheck.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-only -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * filecheck.c * * Code which implements online file check. diff --git a/fs/ocfs2/filecheck.h b/fs/ocfs2/filecheck.h index 4d006777ac54..d3bcb8bcfeb0 100644 --- a/fs/ocfs2/filecheck.h +++ b/fs/ocfs2/filecheck.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-only */ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * filecheck.h * * Online file check. diff --git a/fs/ocfs2/heartbeat.c b/fs/ocfs2/heartbeat.c index 60c5f995d30c..9099d8fc7599 100644 --- a/fs/ocfs2/heartbeat.c +++ b/fs/ocfs2/heartbeat.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-or-later -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * heartbeat.c * * Register ourselves with the heartbaet service, keep our node maps diff --git a/fs/ocfs2/heartbeat.h b/fs/ocfs2/heartbeat.h index 5fedb2d35dc0..f1f8b1802fe4 100644 --- a/fs/ocfs2/heartbeat.h +++ b/fs/ocfs2/heartbeat.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-or-later */ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * heartbeat.h * * Function prototypes diff --git a/fs/ocfs2/inode.c b/fs/ocfs2/inode.c index 7c9dfd50c1c1..bc8f32fab964 100644 --- a/fs/ocfs2/inode.c +++ b/fs/ocfs2/inode.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-or-later -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * inode.c * * vfs' aops, fops, dops and iops diff --git a/fs/ocfs2/inode.h b/fs/ocfs2/inode.h index 51a4f7197987..82b28fdacc7e 100644 --- a/fs/ocfs2/inode.h +++ b/fs/ocfs2/inode.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-or-later */ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * inode.h * * Function prototypes diff --git a/fs/ocfs2/journal.c b/fs/ocfs2/journal.c index db52e843002a..4e589ce2fce6 100644 --- a/fs/ocfs2/journal.c +++ b/fs/ocfs2/journal.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-or-later -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * journal.c * * Defines functions of journalling api diff --git a/fs/ocfs2/journal.h b/fs/ocfs2/journal.h index bfe611ed1b1d..d158acb8b38a 100644 --- a/fs/ocfs2/journal.h +++ b/fs/ocfs2/journal.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-or-later */ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * journal.h * * Defines journalling api and structures. diff --git a/fs/ocfs2/localalloc.c b/fs/ocfs2/localalloc.c index fc8252a28cb1..5f6bacbeef6b 100644 --- a/fs/ocfs2/localalloc.c +++ b/fs/ocfs2/localalloc.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-or-later -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * localalloc.c * * Node local data allocation diff --git a/fs/ocfs2/localalloc.h b/fs/ocfs2/localalloc.h index e8a5cea48639..08f925b7ec6d 100644 --- a/fs/ocfs2/localalloc.h +++ b/fs/ocfs2/localalloc.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-or-later */ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * localalloc.h * * Function prototypes diff --git a/fs/ocfs2/locks.c b/fs/ocfs2/locks.c index 7edc4e5c7c2c..fab7c6a4a7d0 100644 --- a/fs/ocfs2/locks.c +++ b/fs/ocfs2/locks.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-or-later -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * locks.c * * Userspace file locking support diff --git a/fs/ocfs2/locks.h b/fs/ocfs2/locks.h index 389fe1fce3a5..b52de3947d5f 100644 --- a/fs/ocfs2/locks.h +++ b/fs/ocfs2/locks.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-or-later */ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * locks.h * * Function prototypes for Userspace file locking support diff --git a/fs/ocfs2/mmap.c b/fs/ocfs2/mmap.c index 25cabbfe87fc..1834f26522ed 100644 --- a/fs/ocfs2/mmap.c +++ b/fs/ocfs2/mmap.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-or-later -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * mmap.c * * Code to deal with the mess that is clustered mmap. diff --git a/fs/ocfs2/move_extents.c b/fs/ocfs2/move_extents.c index 758d9661ef1e..192cad0662d8 100644 --- a/fs/ocfs2/move_extents.c +++ b/fs/ocfs2/move_extents.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-only -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * move_extents.c * * Copyright (C) 2011 Oracle. All rights reserved. diff --git a/fs/ocfs2/move_extents.h b/fs/ocfs2/move_extents.h index 28cac43892c5..987f9e559f30 100644 --- a/fs/ocfs2/move_extents.h +++ b/fs/ocfs2/move_extents.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-only */ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * move_extents.h * * Copyright (C) 2011 Oracle. All rights reserved. diff --git a/fs/ocfs2/namei.c b/fs/ocfs2/namei.c index 05ced86580d1..2c46ff6ba4ea 100644 --- a/fs/ocfs2/namei.c +++ b/fs/ocfs2/namei.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-or-later -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * namei.c * * Create and rename file, directory, symlinks diff --git a/fs/ocfs2/namei.h b/fs/ocfs2/namei.h index cc091ed02b4a..9cc891eb874e 100644 --- a/fs/ocfs2/namei.h +++ b/fs/ocfs2/namei.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-or-later */ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * namei.h * * Function prototypes diff --git a/fs/ocfs2/ocfs1_fs_compat.h b/fs/ocfs2/ocfs1_fs_compat.h index 01ae48c4834d..6dbcf3d467fb 100644 --- a/fs/ocfs2/ocfs1_fs_compat.h +++ b/fs/ocfs2/ocfs1_fs_compat.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-only */ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * ocfs1_fs_compat.h * * OCFS1 volume header definitions. OCFS2 creates valid but unmountable diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h index 7993d527edae..bb62cc2e0211 100644 --- a/fs/ocfs2/ocfs2.h +++ b/fs/ocfs2/ocfs2.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-or-later */ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * ocfs2.h * * Defines macros and structures used in OCFS2 diff --git a/fs/ocfs2/ocfs2_fs.h b/fs/ocfs2/ocfs2_fs.h index 19137c6d087b..638d875eccc7 100644 --- a/fs/ocfs2/ocfs2_fs.h +++ b/fs/ocfs2/ocfs2_fs.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-only */ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * ocfs2_fs.h * * On-disk structures for OCFS2. diff --git a/fs/ocfs2/ocfs2_ioctl.h b/fs/ocfs2/ocfs2_ioctl.h index 273616bd4f19..9680797bc531 100644 --- a/fs/ocfs2/ocfs2_ioctl.h +++ b/fs/ocfs2/ocfs2_ioctl.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-only */ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * ocfs2_ioctl.h * * Defines OCFS2 ioctls. diff --git a/fs/ocfs2/ocfs2_lockid.h b/fs/ocfs2/ocfs2_lockid.h index b4be84956bc1..8ac357ce6a30 100644 --- a/fs/ocfs2/ocfs2_lockid.h +++ b/fs/ocfs2/ocfs2_lockid.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-or-later */ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * ocfs2_lockid.h * * Defines OCFS2 lockid bits. diff --git a/fs/ocfs2/ocfs2_lockingver.h b/fs/ocfs2/ocfs2_lockingver.h index 5c9c105b33ee..31a5e1619e7f 100644 --- a/fs/ocfs2/ocfs2_lockingver.h +++ b/fs/ocfs2/ocfs2_lockingver.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-only */ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * ocfs2_lockingver.h * * Defines OCFS2 Locking version values. diff --git a/fs/ocfs2/refcounttree.c b/fs/ocfs2/refcounttree.c index c19a463fac55..7f6355cbb587 100644 --- a/fs/ocfs2/refcounttree.c +++ b/fs/ocfs2/refcounttree.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-only -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * refcounttree.c * * Copyright (C) 2009 Oracle. All rights reserved. diff --git a/fs/ocfs2/refcounttree.h b/fs/ocfs2/refcounttree.h index 0b9014495726..8197a94feec0 100644 --- a/fs/ocfs2/refcounttree.h +++ b/fs/ocfs2/refcounttree.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-only */ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * refcounttree.h * * Copyright (C) 2009 Oracle. All rights reserved. diff --git a/fs/ocfs2/reservations.c b/fs/ocfs2/reservations.c index bf3842e34fb9..769e466887b0 100644 --- a/fs/ocfs2/reservations.c +++ b/fs/ocfs2/reservations.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-only -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * reservations.c * * Allocation reservations implementation diff --git a/fs/ocfs2/reservations.h b/fs/ocfs2/reservations.h index 6ac88122896d..677c50663595 100644 --- a/fs/ocfs2/reservations.h +++ b/fs/ocfs2/reservations.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-only */ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * reservations.h * * Allocation reservations function prototypes and structures. diff --git a/fs/ocfs2/resize.c b/fs/ocfs2/resize.c index 24eb52f9059c..d65d43c61857 100644 --- a/fs/ocfs2/resize.c +++ b/fs/ocfs2/resize.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-or-later -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * resize.c * * volume resize. diff --git a/fs/ocfs2/resize.h b/fs/ocfs2/resize.h index 0af0c023042c..4990637219ef 100644 --- a/fs/ocfs2/resize.h +++ b/fs/ocfs2/resize.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-or-later */ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * resize.h * * Function prototypes diff --git a/fs/ocfs2/slot_map.c b/fs/ocfs2/slot_map.c index 4da0e4b1e79b..0b0ae3ebb0cf 100644 --- a/fs/ocfs2/slot_map.c +++ b/fs/ocfs2/slot_map.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-or-later -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * slot_map.c * * Copyright (C) 2002, 2004 Oracle. All rights reserved. diff --git a/fs/ocfs2/slot_map.h b/fs/ocfs2/slot_map.h index 93b53e73f0f7..a43644570b53 100644 --- a/fs/ocfs2/slot_map.h +++ b/fs/ocfs2/slot_map.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-or-later */ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * slotmap.h * * description here diff --git a/fs/ocfs2/stack_o2cb.c b/fs/ocfs2/stack_o2cb.c index f70012038383..88f75f7f02d7 100644 --- a/fs/ocfs2/stack_o2cb.c +++ b/fs/ocfs2/stack_o2cb.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-only -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * stack_o2cb.c * * Code which interfaces ocfs2 with the o2cb stack. diff --git a/fs/ocfs2/stack_user.c b/fs/ocfs2/stack_user.c index 7397064c3f35..85a47621e0c0 100644 --- a/fs/ocfs2/stack_user.c +++ b/fs/ocfs2/stack_user.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-only -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * stack_user.c * * Code which interfaces ocfs2 with fs/dlm and a userspace stack. diff --git a/fs/ocfs2/stackglue.c b/fs/ocfs2/stackglue.c index 8d33ebc6b6fc..d50e8b8dfea4 100644 --- a/fs/ocfs2/stackglue.c +++ b/fs/ocfs2/stackglue.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-only -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * stackglue.c * * Code which implements an OCFS2 specific interface to underlying diff --git a/fs/ocfs2/stackglue.h b/fs/ocfs2/stackglue.h index e9d26cbeb3b8..3636847fae19 100644 --- a/fs/ocfs2/stackglue.h +++ b/fs/ocfs2/stackglue.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-only */ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * stackglue.h * * Glue to the underlying cluster stack. diff --git a/fs/ocfs2/suballoc.c b/fs/ocfs2/suballoc.c index 8c8cf7f4eb34..8521942f5af2 100644 --- a/fs/ocfs2/suballoc.c +++ b/fs/ocfs2/suballoc.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-or-later -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * suballoc.c * * metadata alloc and free diff --git a/fs/ocfs2/suballoc.h b/fs/ocfs2/suballoc.h index 50b36250beb6..5805a03d100b 100644 --- a/fs/ocfs2/suballoc.h +++ b/fs/ocfs2/suballoc.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-or-later */ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * suballoc.h * * Defines sub allocator api diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c index 079f8826993e..c86bd4e60e20 100644 --- a/fs/ocfs2/super.c +++ b/fs/ocfs2/super.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-or-later -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * super.c * * load/unload driver, mount/dismount volumes diff --git a/fs/ocfs2/super.h b/fs/ocfs2/super.h index 76facaf63336..8312651135b9 100644 --- a/fs/ocfs2/super.h +++ b/fs/ocfs2/super.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-or-later */ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * super.h * * Function prototypes diff --git a/fs/ocfs2/symlink.c b/fs/ocfs2/symlink.c index 94cfacc9bad7..f755a4985821 100644 --- a/fs/ocfs2/symlink.c +++ b/fs/ocfs2/symlink.c @@ -1,6 +1,4 @@ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * linux/cluster/ssi/cfs/symlink.c * * This program is free software; you can redistribute it and/or diff --git a/fs/ocfs2/symlink.h b/fs/ocfs2/symlink.h index 167094d1e5aa..ffcf0210545c 100644 --- a/fs/ocfs2/symlink.h +++ b/fs/ocfs2/symlink.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-or-later */ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * symlink.h * * Function prototypes diff --git a/fs/ocfs2/sysfile.c b/fs/ocfs2/sysfile.c index bb701c4e449f..53a945da873b 100644 --- a/fs/ocfs2/sysfile.c +++ b/fs/ocfs2/sysfile.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-or-later -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * sysfile.c * * Initialize, read, write, etc. system files. diff --git a/fs/ocfs2/sysfile.h b/fs/ocfs2/sysfile.h index a83dd962fccb..2b38c75990fd 100644 --- a/fs/ocfs2/sysfile.h +++ b/fs/ocfs2/sysfile.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-or-later */ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * sysfile.h * * Function prototypes diff --git a/fs/ocfs2/uptodate.c b/fs/ocfs2/uptodate.c index 580852ba05c4..09854925fa5c 100644 --- a/fs/ocfs2/uptodate.c +++ b/fs/ocfs2/uptodate.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-or-later -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * uptodate.c * * Tracking the up-to-date-ness of a local buffer_head with respect to diff --git a/fs/ocfs2/uptodate.h b/fs/ocfs2/uptodate.h index 77a30cae4879..85d94134001b 100644 --- a/fs/ocfs2/uptodate.h +++ b/fs/ocfs2/uptodate.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-or-later */ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * uptodate.h * * Cluster uptodate tracking diff --git a/fs/ocfs2/xattr.c b/fs/ocfs2/xattr.c index 36ae47a4aef6..dd784eb0cd7c 100644 --- a/fs/ocfs2/xattr.c +++ b/fs/ocfs2/xattr.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-only -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * xattr.c * * Copyright (C) 2004, 2008 Oracle. All rights reserved. diff --git a/fs/ocfs2/xattr.h b/fs/ocfs2/xattr.h index 9c80382da1f5..00308b57f64f 100644 --- a/fs/ocfs2/xattr.h +++ b/fs/ocfs2/xattr.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-only */ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * xattr.h * * Copyright (C) 2004, 2008 Oracle. All rights reserved. diff --git a/fs/proc/generic.c b/fs/proc/generic.c index bc86aa87cc41..5b78739e60e4 100644 --- a/fs/proc/generic.c +++ b/fs/proc/generic.c @@ -166,15 +166,8 @@ static int __xlate_proc_name(const char *name, struct proc_dir_entry **ret, const char *cp = name, *next; struct proc_dir_entry *de; - de = *ret; - if (!de) - de = &proc_root; - - while (1) { - next = strchr(cp, '/'); - if (!next) - break; - + de = *ret ?: &proc_root; + while ((next = strchr(cp, '/')) != NULL) { de = pde_subdir_find(de, cp, next - cp); if (!de) { WARN(1, "name '%s'\n", name); @@ -756,7 +749,7 @@ int remove_proc_subtree(const char *name, struct proc_dir_entry *parent) while (1) { next = pde_subdir_first(de); if (next) { - if (unlikely(pde_is_permanent(root))) { + if (unlikely(pde_is_permanent(next))) { write_unlock(&proc_subdir_lock); WARN(1, "removing permanent /proc entry '%s/%s'", next->parent->name, next->name); diff --git a/fs/proc/inode.c b/fs/proc/inode.c index bde6b6f69852..599eb724ff2d 100644 --- a/fs/proc/inode.c +++ b/fs/proc/inode.c @@ -273,25 +273,15 @@ void proc_entry_rundown(struct proc_dir_entry *de) spin_unlock(&de->pde_unload_lock); } -static loff_t pde_lseek(struct proc_dir_entry *pde, struct file *file, loff_t offset, int whence) -{ - typeof_member(struct proc_ops, proc_lseek) lseek; - - lseek = pde->proc_ops->proc_lseek; - if (!lseek) - lseek = default_llseek; - return lseek(file, offset, whence); -} - static loff_t proc_reg_llseek(struct file *file, loff_t offset, int whence) { struct proc_dir_entry *pde = PDE(file_inode(file)); loff_t rv = -EINVAL; if (pde_is_permanent(pde)) { - return pde_lseek(pde, file, offset, whence); + return pde->proc_ops->proc_lseek(file, offset, whence); } else if (use_pde(pde)) { - rv = pde_lseek(pde, file, offset, whence); + rv = pde->proc_ops->proc_lseek(file, offset, whence); unuse_pde(pde); } return rv; @@ -493,7 +483,6 @@ proc_reg_get_unmapped_area(struct file *file, unsigned long orig_addr, static int proc_reg_open(struct inode *inode, struct file *file) { - struct proc_fs_info *fs_info = proc_sb_info(inode->i_sb); struct proc_dir_entry *pde = PDE(inode); int rv = 0; typeof_member(struct proc_ops, proc_open) open; @@ -507,9 +496,6 @@ static int proc_reg_open(struct inode *inode, struct file *file) return rv; } - if (fs_info->pidonly == PROC_PIDONLY_ON) - return -ENOENT; - /* * Ensure that * 1) PDE's ->release hook will be called no matter what diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c index 66c7dd11bd7c..dea0f5ee540c 100644 --- a/fs/proc/proc_sysctl.c +++ b/fs/proc/proc_sysctl.c @@ -1563,7 +1563,7 @@ err_register_leaves: } /** - * register_sysctl_table_path - register a sysctl table hierarchy + * register_sysctl_paths - register a sysctl table hierarchy * @path: The path to the directory the sysctl table is in. * @table: the top-level table structure * diff --git a/fs/reiserfs/procfs.c b/fs/reiserfs/procfs.c index 155b82870333..4a7cb16e9345 100644 --- a/fs/reiserfs/procfs.c +++ b/fs/reiserfs/procfs.c @@ -488,13 +488,3 @@ int reiserfs_proc_info_global_done(void) * (available at http://www.namesys.com/legalese.html) * */ - -/* - * Make Linus happy. - * Local variables: - * c-indentation-style: "K&R" - * mode-name: "LC" - * c-basic-offset: 8 - * tab-width: 8 - * End: - */ diff --git a/include/asm-generic/bitops/find.h b/include/asm-generic/bitops/find.h index 9fdf21302fdf..0d132ee2a291 100644 --- a/include/asm-generic/bitops/find.h +++ b/include/asm-generic/bitops/find.h @@ -2,6 +2,13 @@ #ifndef _ASM_GENERIC_BITOPS_FIND_H_ #define _ASM_GENERIC_BITOPS_FIND_H_ +extern unsigned long _find_next_bit(const unsigned long *addr1, + const unsigned long *addr2, unsigned long nbits, + unsigned long start, unsigned long invert, unsigned long le); +extern unsigned long _find_first_bit(const unsigned long *addr, unsigned long size); +extern unsigned long _find_first_zero_bit(const unsigned long *addr, unsigned long size); +extern unsigned long _find_last_bit(const unsigned long *addr, unsigned long size); + #ifndef find_next_bit /** * find_next_bit - find the next set bit in a memory region @@ -12,8 +19,22 @@ * Returns the bit number for the next set bit * If no bits are set, returns @size. */ -extern unsigned long find_next_bit(const unsigned long *addr, unsigned long - size, unsigned long offset); +static inline +unsigned long find_next_bit(const unsigned long *addr, unsigned long size, + unsigned long offset) +{ + if (small_const_nbits(size)) { + unsigned long val; + + if (unlikely(offset >= size)) + return size; + + val = *addr & GENMASK(size - 1, offset); + return val ? __ffs(val) : size; + } + + return _find_next_bit(addr, NULL, size, offset, 0UL, 0); +} #endif #ifndef find_next_and_bit @@ -27,9 +48,23 @@ extern unsigned long find_next_bit(const unsigned long *addr, unsigned long * Returns the bit number for the next set bit * If no bits are set, returns @size. */ -extern unsigned long find_next_and_bit(const unsigned long *addr1, +static inline +unsigned long find_next_and_bit(const unsigned long *addr1, const unsigned long *addr2, unsigned long size, - unsigned long offset); + unsigned long offset) +{ + if (small_const_nbits(size)) { + unsigned long val; + + if (unlikely(offset >= size)) + return size; + + val = *addr1 & *addr2 & GENMASK(size - 1, offset); + return val ? __ffs(val) : size; + } + + return _find_next_bit(addr1, addr2, size, offset, 0UL, 0); +} #endif #ifndef find_next_zero_bit @@ -42,8 +77,22 @@ extern unsigned long find_next_and_bit(const unsigned long *addr1, * Returns the bit number of the next zero bit * If no bits are zero, returns @size. */ -extern unsigned long find_next_zero_bit(const unsigned long *addr, unsigned - long size, unsigned long offset); +static inline +unsigned long find_next_zero_bit(const unsigned long *addr, unsigned long size, + unsigned long offset) +{ + if (small_const_nbits(size)) { + unsigned long val; + + if (unlikely(offset >= size)) + return size; + + val = *addr | ~GENMASK(size - 1, offset); + return val == ~0UL ? size : ffz(val); + } + + return _find_next_bit(addr, NULL, size, offset, ~0UL, 0); +} #endif #ifdef CONFIG_GENERIC_FIND_FIRST_BIT @@ -56,8 +105,17 @@ extern unsigned long find_next_zero_bit(const unsigned long *addr, unsigned * Returns the bit number of the first set bit. * If no bits are set, returns @size. */ -extern unsigned long find_first_bit(const unsigned long *addr, - unsigned long size); +static inline +unsigned long find_first_bit(const unsigned long *addr, unsigned long size) +{ + if (small_const_nbits(size)) { + unsigned long val = *addr & GENMASK(size - 1, 0); + + return val ? __ffs(val) : size; + } + + return _find_first_bit(addr, size); +} /** * find_first_zero_bit - find the first cleared bit in a memory region @@ -67,8 +125,17 @@ extern unsigned long find_first_bit(const unsigned long *addr, * Returns the bit number of the first cleared bit. * If no bits are zero, returns @size. */ -extern unsigned long find_first_zero_bit(const unsigned long *addr, - unsigned long size); +static inline +unsigned long find_first_zero_bit(const unsigned long *addr, unsigned long size) +{ + if (small_const_nbits(size)) { + unsigned long val = *addr | ~GENMASK(size - 1, 0); + + return val == ~0UL ? size : ffz(val); + } + + return _find_first_zero_bit(addr, size); +} #else /* CONFIG_GENERIC_FIND_FIRST_BIT */ #ifndef find_first_bit @@ -80,6 +147,27 @@ extern unsigned long find_first_zero_bit(const unsigned long *addr, #endif /* CONFIG_GENERIC_FIND_FIRST_BIT */ +#ifndef find_last_bit +/** + * find_last_bit - find the last set bit in a memory region + * @addr: The address to start the search at + * @size: The number of bits to search + * + * Returns the bit number of the last set bit, or size. + */ +static inline +unsigned long find_last_bit(const unsigned long *addr, unsigned long size) +{ + if (small_const_nbits(size)) { + unsigned long val = *addr & GENMASK(size - 1, 0); + + return val ? __fls(val) : size; + } + + return _find_last_bit(addr, size); +} +#endif + /** * find_next_clump8 - find next 8-bit clump with set bits in a memory region * @clump: location to store copy of found clump diff --git a/include/asm-generic/bitops/le.h b/include/asm-generic/bitops/le.h index 188d3eba3ace..5a28629cbf4d 100644 --- a/include/asm-generic/bitops/le.h +++ b/include/asm-generic/bitops/le.h @@ -2,8 +2,10 @@ #ifndef _ASM_GENERIC_BITOPS_LE_H_ #define _ASM_GENERIC_BITOPS_LE_H_ +#include <asm-generic/bitops/find.h> #include <asm/types.h> #include <asm/byteorder.h> +#include <linux/swab.h> #if defined(__LITTLE_ENDIAN) @@ -32,13 +34,41 @@ static inline unsigned long find_first_zero_bit_le(const void *addr, #define BITOP_LE_SWIZZLE ((BITS_PER_LONG-1) & ~0x7) #ifndef find_next_zero_bit_le -extern unsigned long find_next_zero_bit_le(const void *addr, - unsigned long size, unsigned long offset); +static inline +unsigned long find_next_zero_bit_le(const void *addr, unsigned + long size, unsigned long offset) +{ + if (small_const_nbits(size)) { + unsigned long val = *(const unsigned long *)addr; + + if (unlikely(offset >= size)) + return size; + + val = swab(val) | ~GENMASK(size - 1, offset); + return val == ~0UL ? size : ffz(val); + } + + return _find_next_bit(addr, NULL, size, offset, ~0UL, 1); +} #endif #ifndef find_next_bit_le -extern unsigned long find_next_bit_le(const void *addr, - unsigned long size, unsigned long offset); +static inline +unsigned long find_next_bit_le(const void *addr, unsigned + long size, unsigned long offset) +{ + if (small_const_nbits(size)) { + unsigned long val = *(const unsigned long *)addr; + + if (unlikely(offset >= size)) + return size; + + val = swab(val) & GENMASK(size - 1, offset); + return val ? __ffs(val) : size; + } + + return _find_next_bit(addr, NULL, size, offset, 0UL, 1); +} #endif #ifndef find_first_zero_bit_le diff --git a/include/asm-generic/bitsperlong.h b/include/asm-generic/bitsperlong.h index 3905c1c93dc2..1023e2a4bd37 100644 --- a/include/asm-generic/bitsperlong.h +++ b/include/asm-generic/bitsperlong.h @@ -23,4 +23,16 @@ #define BITS_PER_LONG_LONG 64 #endif +/* + * small_const_nbits(n) is true precisely when it is known at compile-time + * that BITMAP_SIZE(n) is 1, i.e. 1 <= n <= BITS_PER_LONG. This allows + * various bit/bitmap APIs to provide a fast inline implementation. Bitmaps + * of size 0 are very rare, and a compile-time-known-size 0 is most likely + * a sign of error. They will be handled correctly by the bit/bitmap APIs, + * but using the out-of-line functions, so that the inline implementations + * can unconditionally dereference the pointer(s). + */ +#define small_const_nbits(nbits) \ + (__builtin_constant_p(nbits) && (nbits) <= BITS_PER_LONG && (nbits) > 0) + #endif /* __ASM_GENERIC_BITS_PER_LONG */ diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h index 76d456c516a1..e93375c710b9 100644 --- a/include/asm-generic/io.h +++ b/include/asm-generic/io.h @@ -1064,17 +1064,6 @@ static inline void pci_iounmap(struct pci_dev *dev, void __iomem *p) #endif #endif /* CONFIG_GENERIC_IOMAP */ -/* - * Convert a virtual cached pointer to an uncached pointer - */ -#ifndef xlate_dev_kmem_ptr -#define xlate_dev_kmem_ptr xlate_dev_kmem_ptr -static inline void *xlate_dev_kmem_ptr(void *addr) -{ - return addr; -} -#endif - #ifndef xlate_dev_mem_ptr #define xlate_dev_mem_ptr xlate_dev_mem_ptr static inline void *xlate_dev_mem_ptr(phys_addr_t addr) diff --git a/include/linux/align.h b/include/linux/align.h new file mode 100644 index 000000000000..2b4acec7b95a --- /dev/null +++ b/include/linux/align.h @@ -0,0 +1,15 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _LINUX_ALIGN_H +#define _LINUX_ALIGN_H + +#include <linux/const.h> + +/* @a is a power of 2 value */ +#define ALIGN(x, a) __ALIGN_KERNEL((x), (a)) +#define ALIGN_DOWN(x, a) __ALIGN_KERNEL((x) - ((a) - 1), (a)) +#define __ALIGN_MASK(x, mask) __ALIGN_KERNEL_MASK((x), (mask)) +#define PTR_ALIGN(p, a) ((typeof(p))ALIGN((unsigned long)(p), (a))) +#define PTR_ALIGN_DOWN(p, a) ((typeof(p))ALIGN_DOWN((unsigned long)(p), (a))) +#define IS_ALIGNED(x, a) (((x) & ((typeof(x))(a) - 1)) == 0) + +#endif /* _LINUX_ALIGN_H */ diff --git a/include/linux/async.h b/include/linux/async.h index 0a17cd27f348..cce4ad31e8fc 100644 --- a/include/linux/async.h +++ b/include/linux/async.h @@ -112,7 +112,6 @@ async_schedule_dev_domain(async_func_t func, struct device *dev, return async_schedule_node_domain(func, dev, dev_to_node(dev), domain); } -void async_unregister_domain(struct async_domain *domain); extern void async_synchronize_full(void); extern void async_synchronize_full_domain(struct async_domain *domain); extern void async_synchronize_cookie(async_cookie_t cookie); diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h index 73d039476fa4..a36cfcec4e77 100644 --- a/include/linux/bitmap.h +++ b/include/linux/bitmap.h @@ -4,8 +4,9 @@ #ifndef __ASSEMBLY__ +#include <linux/align.h> #include <linux/bitops.h> -#include <linux/kernel.h> +#include <linux/limits.h> #include <linux/string.h> #include <linux/types.h> @@ -229,14 +230,6 @@ int bitmap_print_to_pagebuf(bool list, char *buf, #define BITMAP_FIRST_WORD_MASK(start) (~0UL << ((start) & (BITS_PER_LONG - 1))) #define BITMAP_LAST_WORD_MASK(nbits) (~0UL >> (-(nbits) & (BITS_PER_LONG - 1))) -/* - * The static inlines below do not handle constant nbits==0 correctly, - * so make such users (should any ever turn up) call the out-of-line - * versions. - */ -#define small_const_nbits(nbits) \ - (__builtin_constant_p(nbits) && (nbits) <= BITS_PER_LONG && (nbits) > 0) - static inline void bitmap_zero(unsigned long *dst, unsigned int nbits) { unsigned int len = BITS_TO_LONGS(nbits) * sizeof(unsigned long); diff --git a/include/linux/bitops.h b/include/linux/bitops.h index a5a48303b0f1..26bf15e6cd35 100644 --- a/include/linux/bitops.h +++ b/include/linux/bitops.h @@ -286,17 +286,5 @@ static __always_inline void __assign_bit(long nr, volatile unsigned long *addr, }) #endif -#ifndef find_last_bit -/** - * find_last_bit - find the last set bit in a memory region - * @addr: The address to start the search at - * @size: The number of bits to search - * - * Returns the bit number of the last set bit, or size. - */ -extern unsigned long find_last_bit(const unsigned long *addr, - unsigned long size); -#endif - #endif /* __KERNEL__ */ #endif diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index b91ba6207365..1255823b2bc0 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -11,7 +11,6 @@ #include <linux/minmax.h> #include <linux/timer.h> #include <linux/workqueue.h> -#include <linux/pagemap.h> #include <linux/backing-dev-defs.h> #include <linux/wait.h> #include <linux/mempool.h> diff --git a/include/linux/compat.h b/include/linux/compat.h index acac0b571df1..98dd7b324c35 100644 --- a/include/linux/compat.h +++ b/include/linux/compat.h @@ -75,7 +75,6 @@ __diag_push(); \ __diag_ignore(GCC, 8, "-Wattribute-alias", \ "Type aliasing is used to sanitize syscall arguments");\ - asmlinkage long compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)); \ asmlinkage long compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \ __attribute__((alias(__stringify(__se_compat_sys##name)))); \ ALLOW_ERROR_INJECTION(compat_sys##name, ERRNO); \ diff --git a/include/linux/configfs.h b/include/linux/configfs.h index 2e8c69b43c64..97cfd13bae51 100644 --- a/include/linux/configfs.h +++ b/include/linux/configfs.h @@ -1,7 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0-or-later */ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * configfs.h - definitions for the device driver filesystem * * Based on sysfs: diff --git a/include/linux/crc8.h b/include/linux/crc8.h index 13c8dabb0441..674045c59a04 100644 --- a/include/linux/crc8.h +++ b/include/linux/crc8.h @@ -96,6 +96,6 @@ void crc8_populate_msb(u8 table[CRC8_TABLE_SIZE], u8 polynomial); * Williams, Ross N., ross<at>ross.net * (see URL http://www.ross.net/crc/download/crc_v3.txt). */ -u8 crc8(const u8 table[CRC8_TABLE_SIZE], u8 *pdata, size_t nbytes, u8 crc); +u8 crc8(const u8 table[CRC8_TABLE_SIZE], const u8 *pdata, size_t nbytes, u8 crc); #endif /* __CRC8_H_ */ diff --git a/include/linux/cred.h b/include/linux/cred.h index ac0e5f97d7d8..14971322e1a0 100644 --- a/include/linux/cred.h +++ b/include/linux/cred.h @@ -53,7 +53,6 @@ do { \ groups_free(group_info); \ } while (0) -extern struct group_info init_groups; #ifdef CONFIG_MULTIUSER extern struct group_info *groups_alloc(int); extern void groups_free(struct group_info *); diff --git a/include/linux/delayacct.h b/include/linux/delayacct.h index 2d3bdcccf5eb..21651f946751 100644 --- a/include/linux/delayacct.h +++ b/include/linux/delayacct.h @@ -82,16 +82,16 @@ static inline int delayacct_is_task_waiting_on_io(struct task_struct *p) return 0; } -static inline void delayacct_set_flag(int flag) +static inline void delayacct_set_flag(struct task_struct *p, int flag) { - if (current->delays) - current->delays->flags |= flag; + if (p->delays) + p->delays->flags |= flag; } -static inline void delayacct_clear_flag(int flag) +static inline void delayacct_clear_flag(struct task_struct *p, int flag) { - if (current->delays) - current->delays->flags &= ~flag; + if (p->delays) + p->delays->flags &= ~flag; } static inline void delayacct_tsk_init(struct task_struct *tsk) @@ -114,7 +114,7 @@ static inline void delayacct_tsk_free(struct task_struct *tsk) static inline void delayacct_blkio_start(void) { - delayacct_set_flag(DELAYACCT_PF_BLKIO); + delayacct_set_flag(current, DELAYACCT_PF_BLKIO); if (current->delays) __delayacct_blkio_start(); } @@ -123,7 +123,7 @@ static inline void delayacct_blkio_end(struct task_struct *p) { if (p->delays) __delayacct_blkio_end(p); - delayacct_clear_flag(DELAYACCT_PF_BLKIO); + delayacct_clear_flag(p, DELAYACCT_PF_BLKIO); } static inline int delayacct_add_tsk(struct taskstats *d, @@ -166,9 +166,9 @@ static inline void delayacct_thrashing_end(void) } #else -static inline void delayacct_set_flag(int flag) +static inline void delayacct_set_flag(struct task_struct *p, int flag) {} -static inline void delayacct_clear_flag(int flag) +static inline void delayacct_clear_flag(struct task_struct *p, int flag) {} static inline void delayacct_init(void) {} diff --git a/include/linux/fs.h b/include/linux/fs.h index acef282b97c6..c3c88fdb9b2a 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -145,7 +145,7 @@ typedef int (dio_iodone_t)(struct kiocb *iocb, loff_t offset, /* Expect random access pattern */ #define FMODE_RANDOM ((__force fmode_t)0x1000) -/* File is huge (eg. /dev/kmem): treat loff_t as unsigned */ +/* File is huge (eg. /dev/mem): treat loff_t as unsigned */ #define FMODE_UNSIGNED_OFFSET ((__force fmode_t)0x2000) /* File is opened with O_PATH; almost nothing can be done with it */ diff --git a/include/linux/genl_magic_func.h b/include/linux/genl_magic_func.h index 6cb82301d8e9..939b1a8f571b 100644 --- a/include/linux/genl_magic_func.h +++ b/include/linux/genl_magic_func.h @@ -404,4 +404,3 @@ s_fields \ /* }}}1 */ #endif /* GENL_MAGIC_FUNC_H */ -/* vim: set foldmethod=marker foldlevel=1 nofoldenable : */ diff --git a/include/linux/genl_magic_struct.h b/include/linux/genl_magic_struct.h index 35d21fddaf2d..f81d48987528 100644 --- a/include/linux/genl_magic_struct.h +++ b/include/linux/genl_magic_struct.h @@ -283,4 +283,3 @@ enum { \ /* }}}1 */ #endif /* GENL_MAGIC_STRUCT_H */ -/* vim: set foldmethod=marker nofoldenable : */ diff --git a/include/linux/gfp.h b/include/linux/gfp.h index 8a5f6c3d7dba..11da8af06704 100644 --- a/include/linux/gfp.h +++ b/include/linux/gfp.h @@ -490,7 +490,7 @@ static inline int gfp_zonelist(gfp_t flags) /* * We get the zone list from the current node and the gfp_mask. - * This zone list contains a maximum of MAXNODES*MAX_NR_ZONES zones. + * This zone list contains a maximum of MAX_NUMNODES*MAX_NR_ZONES zones. * There are two zonelists per node, one for all zones with memory and * one containing just zones from the node the zonelist belongs to. * diff --git a/include/linux/init_task.h b/include/linux/init_task.h index b2412b4d4c20..40fc5813cf93 100644 --- a/include/linux/init_task.h +++ b/include/linux/init_task.h @@ -25,7 +25,6 @@ extern struct files_struct init_files; extern struct fs_struct init_fs; extern struct nsproxy init_nsproxy; -extern struct group_info init_groups; extern struct cred init_cred; #ifndef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE diff --git a/include/linux/initrd.h b/include/linux/initrd.h index 85c15717af34..1bbe9af48dc3 100644 --- a/include/linux/initrd.h +++ b/include/linux/initrd.h @@ -20,8 +20,10 @@ extern void free_initrd_mem(unsigned long, unsigned long); #ifdef CONFIG_BLK_DEV_INITRD extern void __init reserve_initrd_mem(void); +extern void wait_for_initramfs(void); #else static inline void __init reserve_initrd_mem(void) {} +static inline void wait_for_initramfs(void) {} #endif extern phys_addr_t phys_initrd_start; diff --git a/include/linux/kernel.h b/include/linux/kernel.h index 5b7ed6dc99ac..09035ac67d4b 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -3,6 +3,7 @@ #define _LINUX_KERNEL_H #include <stdarg.h> +#include <linux/align.h> #include <linux/limits.h> #include <linux/linkage.h> #include <linux/stddef.h> @@ -30,14 +31,6 @@ */ #define REPEAT_BYTE(x) ((~0ul / 0xff) * (x)) -/* @a is a power of 2 value */ -#define ALIGN(x, a) __ALIGN_KERNEL((x), (a)) -#define ALIGN_DOWN(x, a) __ALIGN_KERNEL((x) - ((a) - 1), (a)) -#define __ALIGN_MASK(x, mask) __ALIGN_KERNEL_MASK((x), (mask)) -#define PTR_ALIGN(p, a) ((typeof(p))ALIGN((unsigned long)(p), (a))) -#define PTR_ALIGN_DOWN(p, a) ((typeof(p))ALIGN_DOWN((unsigned long)(p), (a))) -#define IS_ALIGNED(x, a) (((x) & ((typeof(x))(a) - 1)) == 0) - /* generic data direction definitions */ #define READ 0 #define WRITE 1 diff --git a/include/linux/mm.h b/include/linux/mm.h index 76e27ebb28a3..322ec61d0da7 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -106,7 +106,7 @@ extern int mmap_rnd_compat_bits __read_mostly; * embedding these tags into addresses that point to these memory regions, and * checking that the memory and the pointer tags match on memory accesses) * redefine this macro to strip tags from pointers. - * It's defined as noop for arcitectures that don't support memory tagging. + * It's defined as noop for architectures that don't support memory tagging. */ #ifndef untagged_addr #define untagged_addr(addr) (addr) diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 917bd6c604d5..0d53eba1c383 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -55,7 +55,7 @@ enum migratetype { * pageblocks to MIGRATE_CMA which can be done by * __free_pageblock_cma() function. What is important though * is that a range of pageblocks must be aligned to - * MAX_ORDER_NR_PAGES should biggest page be bigger then + * MAX_ORDER_NR_PAGES should biggest page be bigger than * a single pageblock. */ MIGRATE_CMA, diff --git a/include/linux/pgtable.h b/include/linux/pgtable.h index 2194a9cd885c..46b13780c2c8 100644 --- a/include/linux/pgtable.h +++ b/include/linux/pgtable.h @@ -426,7 +426,7 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addres /* * On some architectures hardware does not set page access bit when accessing - * memory page, it is responsibilty of software setting this bit. It brings + * memory page, it is responsibility of software setting this bit. It brings * out extra page fault penalty to track page access bit. For optimization page * access bit can be set during all page fault flow on these arches. * To be differentiate with macro pte_mkyoung, this macro is used on platforms @@ -519,7 +519,7 @@ extern pgtable_t pgtable_trans_huge_withdraw(struct mm_struct *mm, pmd_t *pmdp); /* * This is an implementation of pmdp_establish() that is only suitable for an * architecture that doesn't have hardware dirty/accessed bits. In this case we - * can't race with CPU which sets these bits and non-atomic aproach is fine. + * can't race with CPU which sets these bits and non-atomic approach is fine. */ static inline pmd_t generic_pmdp_establish(struct vm_area_struct *vma, unsigned long address, pmd_t *pmdp, pmd_t pmd) @@ -852,7 +852,7 @@ static inline void __ptep_modify_prot_commit(struct vm_area_struct *vma, * updates, but to prevent any updates it may make from being lost. * * This does not protect against other software modifications of the - * pte; the appropriate pte lock must be held over the transation. + * pte; the appropriate pte lock must be held over the transaction. * * Note that this interface is intended to be batchable, meaning that * ptep_modify_prot_commit may not actually update the pte, but merely @@ -1281,13 +1281,13 @@ static inline int pmd_none_or_trans_huge_or_clear_bad(pmd_t *pmd) * * The complete check uses is_pmd_migration_entry() in linux/swapops.h * But using that requires moving current function and pmd_trans_unstable() - * to linux/swapops.h to resovle dependency, which is too much code move. + * to linux/swapops.h to resolve dependency, which is too much code move. * * !pmd_present() is equivalent to is_pmd_migration_entry() currently, * because !pmd_present() pages can only be under migration not swapped * out. * - * pmd_none() is preseved for future condition checks on pmd migration + * pmd_none() is preserved for future condition checks on pmd migration * entries and not confusing with this function name, although it is * redundant with !pmd_present(). */ diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h index 000cc0533c33..069c7fd95396 100644 --- a/include/linux/proc_fs.h +++ b/include/linux/proc_fs.h @@ -32,6 +32,7 @@ struct proc_ops { ssize_t (*proc_read)(struct file *, char __user *, size_t, loff_t *); ssize_t (*proc_read_iter)(struct kiocb *, struct iov_iter *); ssize_t (*proc_write)(struct file *, const char __user *, size_t, loff_t *); + /* mandatory unless nonseekable_open() or equivalent is used */ loff_t (*proc_lseek)(struct file *, loff_t, int); int (*proc_release)(struct inode *, struct file *); __poll_t (*proc_poll)(struct file *, struct poll_table_struct *); diff --git a/include/linux/profile.h b/include/linux/profile.h index bad18ca43150..fd18ca96f557 100644 --- a/include/linux/profile.h +++ b/include/linux/profile.h @@ -15,7 +15,6 @@ #define KVM_PROFILING 4 struct proc_dir_entry; -struct pt_regs; struct notifier_block; #if defined(CONFIG_PROFILING) && defined(CONFIG_PROC_FS) @@ -84,8 +83,6 @@ int task_handoff_unregister(struct notifier_block * n); int profile_event_register(enum profile_type, struct notifier_block * n); int profile_event_unregister(enum profile_type, struct notifier_block * n); -struct pt_regs; - #else #define prof_on 0 diff --git a/include/linux/smp.h b/include/linux/smp.h index 84a0b4828f66..669e35c03be2 100644 --- a/include/linux/smp.h +++ b/include/linux/smp.h @@ -56,6 +56,14 @@ void on_each_cpu_cond_mask(smp_cond_func_t cond_func, smp_call_func_t func, int smp_call_function_single_async(int cpu, call_single_data_t *csd); /* + * Cpus stopping functions in panic. All have default weak definitions. + * Architecture-dependent code may override them. + */ +void panic_smp_self_stop(void); +void nmi_panic_self_stop(struct pt_regs *regs); +void crash_smp_send_stop(void); + +/* * Call a function on all processors */ static inline void on_each_cpu(smp_call_func_t func, void *info, int wait) diff --git a/include/linux/swap.h b/include/linux/swap.h index f69e0f67651d..144727041e78 100644 --- a/include/linux/swap.h +++ b/include/linux/swap.h @@ -10,6 +10,7 @@ #include <linux/sched.h> #include <linux/node.h> #include <linux/fs.h> +#include <linux/pagemap.h> #include <linux/atomic.h> #include <linux/page-flags.h> #include <uapi/linux/mempolicy.h> diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h index 394d03cc0e92..4d668abb6391 100644 --- a/include/linux/vmalloc.h +++ b/include/linux/vmalloc.h @@ -33,7 +33,7 @@ struct notifier_block; /* in notifier.h */ * * If IS_ENABLED(CONFIG_KASAN_VMALLOC), VM_KASAN is set on a vm_struct after * shadow memory has been mapped. It's used to handle allocation errors so that - * we don't try to poision shadow on free if it was never allocated. + * we don't try to poison shadow on free if it was never allocated. * * Otherwise, VM_KASAN is set for kasan_module_alloc() allocations and used to * determine which allocations need the module shadow freed. @@ -43,7 +43,7 @@ struct notifier_block; /* in notifier.h */ /* * Maximum alignment for ioremap() regions. - * Can be overriden by arch-specific value. + * Can be overridden by arch-specific value. */ #ifndef IOREMAP_MAX_ORDER #define IOREMAP_MAX_ORDER (7 + PAGE_SHIFT) /* 128 pages */ @@ -227,9 +227,8 @@ static inline void set_vm_flush_reset_perms(void *addr) } #endif -/* for /dev/kmem */ +/* for /proc/kcore */ extern long vread(char *buf, char *addr, unsigned long count); -extern long vwrite(char *buf, char *addr, unsigned long count); /* * Internals. Dont't use.. diff --git a/include/uapi/linux/if_bonding.h b/include/uapi/linux/if_bonding.h index e8eb4ad03cf1..d174914a837d 100644 --- a/include/uapi/linux/if_bonding.h +++ b/include/uapi/linux/if_bonding.h @@ -153,14 +153,3 @@ enum { #define BOND_3AD_STAT_MAX (__BOND_3AD_STAT_MAX - 1) #endif /* _LINUX_IF_BONDING_H */ - -/* - * Local variables: - * version-control: t - * kept-new-versions: 5 - * c-indent-level: 8 - * c-basic-offset: 8 - * tab-width: 8 - * End: - */ - diff --git a/include/uapi/linux/nfs4.h b/include/uapi/linux/nfs4.h index ed5415e0f1c1..800bb0ffa6e6 100644 --- a/include/uapi/linux/nfs4.h +++ b/include/uapi/linux/nfs4.h @@ -178,9 +178,3 @@ #define NFS4_MAX_BACK_CHANNEL_OPS 2 #endif /* _UAPI_LINUX_NFS4_H */ - -/* - * Local variables: - * c-basic-offset: 8 - * End: - */ diff --git a/include/xen/interface/elfnote.h b/include/xen/interface/elfnote.h index 9e9f9bf7c66d..449bd383cb76 100644 --- a/include/xen/interface/elfnote.h +++ b/include/xen/interface/elfnote.h @@ -208,13 +208,3 @@ #define XEN_ELFNOTE_MAX XEN_ELFNOTE_PHYS32_ENTRY #endif /* __XEN_PUBLIC_ELFNOTE_H__ */ - -/* - * Local variables: - * mode: C - * c-set-style: "BSD" - * c-basic-offset: 4 - * tab-width: 4 - * indent-tabs-mode: nil - * End: - */ diff --git a/include/xen/interface/hvm/hvm_vcpu.h b/include/xen/interface/hvm/hvm_vcpu.h index 32ca83edd44d..bfc2138e0bf5 100644 --- a/include/xen/interface/hvm/hvm_vcpu.h +++ b/include/xen/interface/hvm/hvm_vcpu.h @@ -131,13 +131,3 @@ struct vcpu_hvm_context { typedef struct vcpu_hvm_context vcpu_hvm_context_t; #endif /* __XEN_PUBLIC_HVM_HVM_VCPU_H__ */ - -/* - * Local variables: - * mode: C - * c-file-style: "BSD" - * c-basic-offset: 4 - * tab-width: 4 - * indent-tabs-mode: nil - * End: - */ diff --git a/include/xen/interface/io/xenbus.h b/include/xen/interface/io/xenbus.h index aaf2951b1cce..fb8716112251 100644 --- a/include/xen/interface/io/xenbus.h +++ b/include/xen/interface/io/xenbus.h @@ -39,13 +39,3 @@ enum xenbus_state }; #endif /* _XEN_PUBLIC_IO_XENBUS_H */ - -/* - * Local variables: - * c-file-style: "linux" - * indent-tabs-mode: t - * c-indent-level: 8 - * c-basic-offset: 8 - * tab-width: 8 - * End: - */ diff --git a/init/Kconfig b/init/Kconfig index b1da957a9549..1ea12c64e4c9 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -2299,6 +2299,18 @@ config MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS If unsure, say N. +config MODPROBE_PATH + string "Path to modprobe binary" + default "/sbin/modprobe" + help + When kernel code requests a module, it does so by calling + the "modprobe" userspace utility. This option allows you to + set the path where that binary is found. This can be changed + at runtime via the sysctl file + /proc/sys/kernel/modprobe. Setting this to the empty string + removes the kernel's ability to request modules (but + userspace can still load modules explicitly). + config TRIM_UNUSED_KSYMS bool "Trim unused exported kernel symbols" if EXPERT depends on !COMPILE_TEST diff --git a/init/initramfs.c b/init/initramfs.c index d677e8e717f1..af27abc59643 100644 --- a/init/initramfs.c +++ b/init/initramfs.c @@ -1,5 +1,6 @@ // SPDX-License-Identifier: GPL-2.0 #include <linux/init.h> +#include <linux/async.h> #include <linux/fs.h> #include <linux/slab.h> #include <linux/types.h> @@ -541,6 +542,14 @@ static int __init keepinitrd_setup(char *__unused) __setup("keepinitrd", keepinitrd_setup); #endif +static bool __initdata initramfs_async = true; +static int __init initramfs_async_setup(char *str) +{ + strtobool(str, &initramfs_async); + return 1; +} +__setup("initramfs_async=", initramfs_async_setup); + extern char __initramfs_start[]; extern unsigned long __initramfs_size; #include <linux/initrd.h> @@ -658,7 +667,7 @@ static void __init populate_initrd_image(char *err) } #endif /* CONFIG_BLK_DEV_RAM */ -static int __init populate_rootfs(void) +static void __init do_populate_rootfs(void *unused, async_cookie_t cookie) { /* Load the built in initramfs */ char *err = unpack_to_rootfs(__initramfs_start, __initramfs_size); @@ -693,6 +702,33 @@ done: initrd_end = 0; flush_delayed_fput(); +} + +static ASYNC_DOMAIN_EXCLUSIVE(initramfs_domain); +static async_cookie_t initramfs_cookie; + +void wait_for_initramfs(void) +{ + if (!initramfs_cookie) { + /* + * Something before rootfs_initcall wants to access + * the filesystem/initramfs. Probably a bug. Make a + * note, avoid deadlocking the machine, and let the + * caller's access fail as it used to. + */ + pr_warn_once("wait_for_initramfs() called before rootfs_initcalls\n"); + return; + } + async_synchronize_cookie_domain(initramfs_cookie + 1, &initramfs_domain); +} +EXPORT_SYMBOL_GPL(wait_for_initramfs); + +static int __init populate_rootfs(void) +{ + initramfs_cookie = async_schedule_domain(do_populate_rootfs, NULL, + &initramfs_domain); + if (!initramfs_async) + wait_for_initramfs(); return 0; } rootfs_initcall(populate_rootfs); diff --git a/init/main.c b/init/main.c index 543fbe3060be..eb01e121d2f1 100644 --- a/init/main.c +++ b/init/main.c @@ -1561,6 +1561,7 @@ static noinline void __init kernel_init_freeable(void) kunit_run_all_tests(); + wait_for_initramfs(); console_on_rootfs(); /* diff --git a/ipc/sem.c b/ipc/sem.c index f6c30a85dadf..e0ec239680cb 100644 --- a/ipc/sem.c +++ b/ipc/sem.c @@ -36,7 +36,7 @@ * - two Linux specific semctl() commands: SEM_STAT, SEM_INFO. * - undo adjustments at process exit are limited to 0..SEMVMX. * - namespace are supported. - * - SEMMSL, SEMMNS, SEMOPM and SEMMNI can be configured at runtine by writing + * - SEMMSL, SEMMNS, SEMOPM and SEMMNI can be configured at runtime by writing * to /proc/sys/kernel/sem. * - statistics about the usage are reported in /proc/sysvipc/sem. * @@ -224,7 +224,7 @@ static int sysvipc_sem_proc_show(struct seq_file *s, void *it); * Setting it to a result code is a RELEASE, this is ensured by both a * smp_store_release() (for case a) and while holding sem_lock() * (for case b). - * The AQUIRE when reading the result code without holding sem_lock() is + * The ACQUIRE when reading the result code without holding sem_lock() is * achieved by using READ_ONCE() + smp_acquire__after_ctrl_dep(). * (case a above). * Reading the result code while holding sem_lock() needs no further barriers, @@ -786,7 +786,7 @@ static inline void wake_up_sem_queue_prepare(struct sem_queue *q, int error, { get_task_struct(q->sleeper); - /* see SEM_BARRIER_2 for purpuse/pairing */ + /* see SEM_BARRIER_2 for purpose/pairing */ smp_store_release(&q->status, error); wake_q_add_safe(wake_q, q->sleeper); @@ -821,7 +821,7 @@ static inline int check_restart(struct sem_array *sma, struct sem_queue *q) /* It is impossible that someone waits for the new value: * - complex operations always restart. - * - wait-for-zero are handled seperately. + * - wait-for-zero are handled separately. * - q is a previously sleeping simple operation that * altered the array. It must be a decrement, because * simple increments never sleep. @@ -1046,7 +1046,7 @@ static void do_smart_update(struct sem_array *sma, struct sembuf *sops, int nsop * - No complex ops, thus all sleeping ops are * decrease. * - if we decreased the value, then any sleeping - * semaphore ops wont be able to run: If the + * semaphore ops won't be able to run: If the * previous value was too small, then the new * value will be too small, too. */ @@ -2108,7 +2108,7 @@ static long do_semtimedop(int semid, struct sembuf __user *tsops, queue.dupsop = dupsop; error = perform_atomic_semop(sma, &queue); - if (error == 0) { /* non-blocking succesfull path */ + if (error == 0) { /* non-blocking successful path */ DEFINE_WAKE_Q(wake_q); /* diff --git a/kernel/async.c b/kernel/async.c index 33258e6e20f8..b8d7a663497f 100644 --- a/kernel/async.c +++ b/kernel/async.c @@ -78,6 +78,12 @@ static DECLARE_WAIT_QUEUE_HEAD(async_done); static atomic_t entry_count; +static long long microseconds_since(ktime_t start) +{ + ktime_t now = ktime_get(); + return ktime_to_ns(ktime_sub(now, start)) >> 10; +} + static async_cookie_t lowest_in_progress(struct async_domain *domain) { struct async_entry *first = NULL; @@ -111,24 +117,18 @@ static void async_run_entry_fn(struct work_struct *work) struct async_entry *entry = container_of(work, struct async_entry, work); unsigned long flags; - ktime_t calltime, delta, rettime; + ktime_t calltime; /* 1) run (and print duration) */ - if (initcall_debug && system_state < SYSTEM_RUNNING) { - pr_debug("calling %lli_%pS @ %i\n", - (long long)entry->cookie, - entry->func, task_pid_nr(current)); - calltime = ktime_get(); - } + pr_debug("calling %lli_%pS @ %i\n", (long long)entry->cookie, + entry->func, task_pid_nr(current)); + calltime = ktime_get(); + entry->func(entry->data, entry->cookie); - if (initcall_debug && system_state < SYSTEM_RUNNING) { - rettime = ktime_get(); - delta = ktime_sub(rettime, calltime); - pr_debug("initcall %lli_%pS returned 0 after %lld usecs\n", - (long long)entry->cookie, - entry->func, - (long long)ktime_to_ns(delta) >> 10); - } + + pr_debug("initcall %lli_%pS returned after %lld usecs\n", + (long long)entry->cookie, entry->func, + microseconds_since(calltime)); /* 2) remove self from the pending queues */ spin_lock_irqsave(&async_lock, flags); @@ -246,24 +246,6 @@ void async_synchronize_full(void) EXPORT_SYMBOL_GPL(async_synchronize_full); /** - * async_unregister_domain - ensure no more anonymous waiters on this domain - * @domain: idle domain to flush out of any async_synchronize_full instances - * - * async_synchronize_{cookie|full}_domain() are not flushed since callers - * of these routines should know the lifetime of @domain - * - * Prefer ASYNC_DOMAIN_EXCLUSIVE() declarations over flushing - */ -void async_unregister_domain(struct async_domain *domain) -{ - spin_lock_irq(&async_lock); - WARN_ON(!domain->registered || !list_empty(&domain->pending)); - domain->registered = 0; - spin_unlock_irq(&async_lock); -} -EXPORT_SYMBOL_GPL(async_unregister_domain); - -/** * async_synchronize_full_domain - synchronize all asynchronous function within a certain domain * @domain: the domain to synchronize * @@ -287,23 +269,15 @@ EXPORT_SYMBOL_GPL(async_synchronize_full_domain); */ void async_synchronize_cookie_domain(async_cookie_t cookie, struct async_domain *domain) { - ktime_t starttime, delta, endtime; + ktime_t starttime; - if (initcall_debug && system_state < SYSTEM_RUNNING) { - pr_debug("async_waiting @ %i\n", task_pid_nr(current)); - starttime = ktime_get(); - } + pr_debug("async_waiting @ %i\n", task_pid_nr(current)); + starttime = ktime_get(); wait_event(async_done, lowest_in_progress(domain) >= cookie); - if (initcall_debug && system_state < SYSTEM_RUNNING) { - endtime = ktime_get(); - delta = ktime_sub(endtime, starttime); - - pr_debug("async_continuing @ %i after %lli usec\n", - task_pid_nr(current), - (long long)ktime_to_ns(delta) >> 10); - } + pr_debug("async_continuing @ %i after %lli usec\n", task_pid_nr(current), + microseconds_since(starttime)); } EXPORT_SYMBOL_GPL(async_synchronize_cookie_domain); diff --git a/kernel/configs/android-base.config b/kernel/configs/android-base.config index d3fd428f4b92..eb701b2ac72f 100644 --- a/kernel/configs/android-base.config +++ b/kernel/configs/android-base.config @@ -1,5 +1,4 @@ # KEEP ALPHABETICALLY SORTED -# CONFIG_DEVKMEM is not set # CONFIG_DEVMEM is not set # CONFIG_FHANDLE is not set # CONFIG_INET_LRO is not set diff --git a/kernel/cred.c b/kernel/cred.c index 421b1149c651..e1d274cd741b 100644 --- a/kernel/cred.c +++ b/kernel/cred.c @@ -33,7 +33,7 @@ do { \ static struct kmem_cache *cred_jar; /* init to 2 - one for init_task, one to ensure it is never freed */ -struct group_info init_groups = { .usage = ATOMIC_INIT(2) }; +static struct group_info init_groups = { .usage = ATOMIC_INIT(2) }; /* * The initial credentials for the initial task diff --git a/kernel/exit.c b/kernel/exit.c index 0596526ed9ea..fd1c04193e18 100644 --- a/kernel/exit.c +++ b/kernel/exit.c @@ -1440,9 +1440,48 @@ void __wake_up_parent(struct task_struct *p, struct task_struct *parent) TASK_INTERRUPTIBLE, p); } +static bool is_effectively_child(struct wait_opts *wo, bool ptrace, + struct task_struct *target) +{ + struct task_struct *parent = + !ptrace ? target->real_parent : target->parent; + + return current == parent || (!(wo->wo_flags & __WNOTHREAD) && + same_thread_group(current, parent)); +} + +/* + * Optimization for waiting on PIDTYPE_PID. No need to iterate through child + * and tracee lists to find the target task. + */ +static int do_wait_pid(struct wait_opts *wo) +{ + bool ptrace; + struct task_struct *target; + int retval; + + ptrace = false; + target = pid_task(wo->wo_pid, PIDTYPE_TGID); + if (target && is_effectively_child(wo, ptrace, target)) { + retval = wait_consider_task(wo, ptrace, target); + if (retval) + return retval; + } + + ptrace = true; + target = pid_task(wo->wo_pid, PIDTYPE_PID); + if (target && target->ptrace && + is_effectively_child(wo, ptrace, target)) { + retval = wait_consider_task(wo, ptrace, target); + if (retval) + return retval; + } + + return 0; +} + static long do_wait(struct wait_opts *wo) { - struct task_struct *tsk; int retval; trace_sched_process_wait(wo->wo_pid); @@ -1464,19 +1503,27 @@ repeat: set_current_state(TASK_INTERRUPTIBLE); read_lock(&tasklist_lock); - tsk = current; - do { - retval = do_wait_thread(wo, tsk); - if (retval) - goto end; - retval = ptrace_do_wait(wo, tsk); + if (wo->wo_type == PIDTYPE_PID) { + retval = do_wait_pid(wo); if (retval) goto end; + } else { + struct task_struct *tsk = current; + + do { + retval = do_wait_thread(wo, tsk); + if (retval) + goto end; - if (wo->wo_flags & __WNOTHREAD) - break; - } while_each_thread(current, tsk); + retval = ptrace_do_wait(wo, tsk); + if (retval) + goto end; + + if (wo->wo_flags & __WNOTHREAD) + break; + } while_each_thread(current, tsk); + } read_unlock(&tasklist_lock); notask: diff --git a/kernel/fork.c b/kernel/fork.c index 771e0ea90499..dc06afd725cb 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -1145,7 +1145,7 @@ void mmput_async(struct mm_struct *mm) * invocations: in mmput() nobody alive left, in execve task is single * threaded. sys_prctl(PR_SET_MM_MAP/EXE_FILE) also needs to set the * mm->exe_file, but does so without using set_mm_exe_file() in order - * to do avoid the need for any locks. + * to avoid the need for any locks. */ void set_mm_exe_file(struct mm_struct *mm, struct file *new_exe_file) { @@ -1396,7 +1396,6 @@ fail_nomem: static int copy_mm(unsigned long clone_flags, struct task_struct *tsk) { struct mm_struct *mm, *oldmm; - int retval; tsk->min_flt = tsk->maj_flt = 0; tsk->nvcsw = tsk->nivcsw = 0; @@ -1423,21 +1422,15 @@ static int copy_mm(unsigned long clone_flags, struct task_struct *tsk) if (clone_flags & CLONE_VM) { mmget(oldmm); mm = oldmm; - goto good_mm; + } else { + mm = dup_mm(tsk, current->mm); + if (!mm) + return -ENOMEM; } - retval = -ENOMEM; - mm = dup_mm(tsk, current->mm); - if (!mm) - goto fail_nomem; - -good_mm: tsk->mm = mm; tsk->active_mm = mm; return 0; - -fail_nomem: - return retval; } static int copy_fs(unsigned long clone_flags, struct task_struct *tsk) @@ -1743,7 +1736,7 @@ static int pidfd_release(struct inode *inode, struct file *file) * /proc/<pid>/status where Pid and NSpid are always shown relative to * the pid namespace of the procfs instance. The difference becomes * obvious when sending around a pidfd between pid namespaces from a - * different branch of the tree, i.e. where no ancestoral relation is + * different branch of the tree, i.e. where no ancestral relation is * present between the pid namespaces: * - create two new pid namespaces ns1 and ns2 in the initial pid * namespace (also take care to create new mount namespaces in the @@ -2735,8 +2728,8 @@ static bool clone3_args_valid(struct kernel_clone_args *kargs) return false; /* - * - make the CLONE_DETACHED bit reuseable for clone3 - * - make the CSIGNAL bits reuseable for clone3 + * - make the CLONE_DETACHED bit reusable for clone3 + * - make the CSIGNAL bits reusable for clone3 */ if (kargs->flags & (CLONE_DETACHED | CSIGNAL)) return false; diff --git a/kernel/gcov/Kconfig b/kernel/gcov/Kconfig index f62de2dea8a3..58f87a3092f3 100644 --- a/kernel/gcov/Kconfig +++ b/kernel/gcov/Kconfig @@ -4,6 +4,7 @@ menu "GCOV-based kernel profiling" config GCOV_KERNEL bool "Enable gcov-based kernel profiling" depends on DEBUG_FS + depends on !CC_IS_CLANG || CLANG_VERSION >= 110000 select CONSTRUCTORS default n help diff --git a/kernel/gcov/base.c b/kernel/gcov/base.c index 0ffe9f194080..073a3738c5e6 100644 --- a/kernel/gcov/base.c +++ b/kernel/gcov/base.c @@ -49,6 +49,55 @@ void gcov_enable_events(void) mutex_unlock(&gcov_lock); } +/** + * store_gcov_u32 - store 32 bit number in gcov format to buffer + * @buffer: target buffer or NULL + * @off: offset into the buffer + * @v: value to be stored + * + * Number format defined by gcc: numbers are recorded in the 32 bit + * unsigned binary form of the endianness of the machine generating the + * file. Returns the number of bytes stored. If @buffer is %NULL, doesn't + * store anything. + */ +size_t store_gcov_u32(void *buffer, size_t off, u32 v) +{ + u32 *data; + + if (buffer) { + data = buffer + off; + *data = v; + } + + return sizeof(*data); +} + +/** + * store_gcov_u64 - store 64 bit number in gcov format to buffer + * @buffer: target buffer or NULL + * @off: offset into the buffer + * @v: value to be stored + * + * Number format defined by gcc: numbers are recorded in the 32 bit + * unsigned binary form of the endianness of the machine generating the + * file. 64 bit numbers are stored as two 32 bit numbers, the low part + * first. Returns the number of bytes stored. If @buffer is %NULL, doesn't store + * anything. + */ +size_t store_gcov_u64(void *buffer, size_t off, u64 v) +{ + u32 *data; + + if (buffer) { + data = buffer + off; + + data[0] = (v & 0xffffffffUL); + data[1] = (v >> 32); + } + + return sizeof(*data) * 2; +} + #ifdef CONFIG_MODULES /* Update list and generate events when modules are unloaded. */ static int gcov_module_notifier(struct notifier_block *nb, unsigned long event, diff --git a/kernel/gcov/clang.c b/kernel/gcov/clang.c index c466c7fbdece..cbb0bed958ab 100644 --- a/kernel/gcov/clang.c +++ b/kernel/gcov/clang.c @@ -48,9 +48,8 @@ #include <linux/list.h> #include <linux/printk.h> #include <linux/ratelimit.h> -#include <linux/seq_file.h> #include <linux/slab.h> -#include <linux/vmalloc.h> +#include <linux/mm.h> #include "gcov.h" typedef void (*llvm_gcov_callback)(void); @@ -70,16 +69,10 @@ struct gcov_fn_info { u32 ident; u32 checksum; -#if CONFIG_CLANG_VERSION < 110000 - u8 use_extra_checksum; -#endif u32 cfg_checksum; u32 num_counters; u64 *counters; -#if CONFIG_CLANG_VERSION < 110000 - const char *function_name; -#endif }; static struct gcov_info *current_info; @@ -109,16 +102,6 @@ void llvm_gcov_init(llvm_gcov_callback writeout, llvm_gcov_callback flush) } EXPORT_SYMBOL(llvm_gcov_init); -#if CONFIG_CLANG_VERSION < 110000 -void llvm_gcda_start_file(const char *orig_filename, const char version[4], - u32 checksum) -{ - current_info->filename = orig_filename; - memcpy(¤t_info->version, version, sizeof(current_info->version)); - current_info->checksum = checksum; -} -EXPORT_SYMBOL(llvm_gcda_start_file); -#else void llvm_gcda_start_file(const char *orig_filename, u32 version, u32 checksum) { current_info->filename = orig_filename; @@ -126,28 +109,7 @@ void llvm_gcda_start_file(const char *orig_filename, u32 version, u32 checksum) current_info->checksum = checksum; } EXPORT_SYMBOL(llvm_gcda_start_file); -#endif - -#if CONFIG_CLANG_VERSION < 110000 -void llvm_gcda_emit_function(u32 ident, const char *function_name, - u32 func_checksum, u8 use_extra_checksum, u32 cfg_checksum) -{ - struct gcov_fn_info *info = kzalloc(sizeof(*info), GFP_KERNEL); - - if (!info) - return; - - INIT_LIST_HEAD(&info->head); - info->ident = ident; - info->checksum = func_checksum; - info->use_extra_checksum = use_extra_checksum; - info->cfg_checksum = cfg_checksum; - if (function_name) - info->function_name = kstrdup(function_name, GFP_KERNEL); - list_add_tail(&info->head, ¤t_info->functions); -} -#else void llvm_gcda_emit_function(u32 ident, u32 func_checksum, u32 cfg_checksum) { struct gcov_fn_info *info = kzalloc(sizeof(*info), GFP_KERNEL); @@ -161,7 +123,6 @@ void llvm_gcda_emit_function(u32 ident, u32 func_checksum, u32 cfg_checksum) info->cfg_checksum = cfg_checksum; list_add_tail(&info->head, ¤t_info->functions); } -#endif EXPORT_SYMBOL(llvm_gcda_emit_function); void llvm_gcda_emit_arcs(u32 num_counters, u64 *counters) @@ -292,16 +253,8 @@ int gcov_info_is_compatible(struct gcov_info *info1, struct gcov_info *info2) !list_is_last(&fn_ptr2->head, &info2->functions)) { if (fn_ptr1->checksum != fn_ptr2->checksum) return false; -#if CONFIG_CLANG_VERSION < 110000 - if (fn_ptr1->use_extra_checksum != fn_ptr2->use_extra_checksum) - return false; - if (fn_ptr1->use_extra_checksum && - fn_ptr1->cfg_checksum != fn_ptr2->cfg_checksum) - return false; -#else if (fn_ptr1->cfg_checksum != fn_ptr2->cfg_checksum) return false; -#endif fn_ptr1 = list_next_entry(fn_ptr1, head); fn_ptr2 = list_next_entry(fn_ptr2, head); } @@ -330,35 +283,6 @@ void gcov_info_add(struct gcov_info *dst, struct gcov_info *src) } } -#if CONFIG_CLANG_VERSION < 110000 -static struct gcov_fn_info *gcov_fn_info_dup(struct gcov_fn_info *fn) -{ - size_t cv_size; /* counter values size */ - struct gcov_fn_info *fn_dup = kmemdup(fn, sizeof(*fn), - GFP_KERNEL); - if (!fn_dup) - return NULL; - INIT_LIST_HEAD(&fn_dup->head); - - fn_dup->function_name = kstrdup(fn->function_name, GFP_KERNEL); - if (!fn_dup->function_name) - goto err_name; - - cv_size = fn->num_counters * sizeof(fn->counters[0]); - fn_dup->counters = vmalloc(cv_size); - if (!fn_dup->counters) - goto err_counters; - memcpy(fn_dup->counters, fn->counters, cv_size); - - return fn_dup; - -err_counters: - kfree(fn_dup->function_name); -err_name: - kfree(fn_dup); - return NULL; -} -#else static struct gcov_fn_info *gcov_fn_info_dup(struct gcov_fn_info *fn) { size_t cv_size; /* counter values size */ @@ -369,7 +293,7 @@ static struct gcov_fn_info *gcov_fn_info_dup(struct gcov_fn_info *fn) INIT_LIST_HEAD(&fn_dup->head); cv_size = fn->num_counters * sizeof(fn->counters[0]); - fn_dup->counters = vmalloc(cv_size); + fn_dup->counters = kvmalloc(cv_size, GFP_KERNEL); if (!fn_dup->counters) { kfree(fn_dup); return NULL; @@ -379,7 +303,6 @@ static struct gcov_fn_info *gcov_fn_info_dup(struct gcov_fn_info *fn) return fn_dup; } -#endif /** * gcov_info_dup - duplicate profiling data set @@ -420,99 +343,18 @@ err: * gcov_info_free - release memory for profiling data set duplicate * @info: profiling data set duplicate to free */ -#if CONFIG_CLANG_VERSION < 110000 -void gcov_info_free(struct gcov_info *info) -{ - struct gcov_fn_info *fn, *tmp; - - list_for_each_entry_safe(fn, tmp, &info->functions, head) { - kfree(fn->function_name); - vfree(fn->counters); - list_del(&fn->head); - kfree(fn); - } - kfree(info->filename); - kfree(info); -} -#else void gcov_info_free(struct gcov_info *info) { struct gcov_fn_info *fn, *tmp; list_for_each_entry_safe(fn, tmp, &info->functions, head) { - vfree(fn->counters); + kvfree(fn->counters); list_del(&fn->head); kfree(fn); } kfree(info->filename); kfree(info); } -#endif - -#define ITER_STRIDE PAGE_SIZE - -/** - * struct gcov_iterator - specifies current file position in logical records - * @info: associated profiling data - * @buffer: buffer containing file data - * @size: size of buffer - * @pos: current position in file - */ -struct gcov_iterator { - struct gcov_info *info; - void *buffer; - size_t size; - loff_t pos; -}; - -/** - * store_gcov_u32 - store 32 bit number in gcov format to buffer - * @buffer: target buffer or NULL - * @off: offset into the buffer - * @v: value to be stored - * - * Number format defined by gcc: numbers are recorded in the 32 bit - * unsigned binary form of the endianness of the machine generating the - * file. Returns the number of bytes stored. If @buffer is %NULL, doesn't - * store anything. - */ -static size_t store_gcov_u32(void *buffer, size_t off, u32 v) -{ - u32 *data; - - if (buffer) { - data = buffer + off; - *data = v; - } - - return sizeof(*data); -} - -/** - * store_gcov_u64 - store 64 bit number in gcov format to buffer - * @buffer: target buffer or NULL - * @off: offset into the buffer - * @v: value to be stored - * - * Number format defined by gcc: numbers are recorded in the 32 bit - * unsigned binary form of the endianness of the machine generating the - * file. 64 bit numbers are stored as two 32 bit numbers, the low part - * first. Returns the number of bytes stored. If @buffer is %NULL, doesn't store - * anything. - */ -static size_t store_gcov_u64(void *buffer, size_t off, u64 v) -{ - u32 *data; - - if (buffer) { - data = buffer + off; - - data[0] = (v & 0xffffffffUL); - data[1] = (v >> 32); - } - - return sizeof(*data) * 2; -} /** * convert_to_gcda - convert profiling data set to gcda file format @@ -521,7 +363,7 @@ static size_t store_gcov_u64(void *buffer, size_t off, u64 v) * * Returns the number of bytes that were/would have been stored into the buffer. */ -static size_t convert_to_gcda(char *buffer, struct gcov_info *info) +size_t convert_to_gcda(char *buffer, struct gcov_info *info) { struct gcov_fn_info *fi_ptr; size_t pos = 0; @@ -535,21 +377,10 @@ static size_t convert_to_gcda(char *buffer, struct gcov_info *info) u32 i; pos += store_gcov_u32(buffer, pos, GCOV_TAG_FUNCTION); -#if CONFIG_CLANG_VERSION < 110000 - pos += store_gcov_u32(buffer, pos, - fi_ptr->use_extra_checksum ? 3 : 2); -#else pos += store_gcov_u32(buffer, pos, 3); -#endif pos += store_gcov_u32(buffer, pos, fi_ptr->ident); pos += store_gcov_u32(buffer, pos, fi_ptr->checksum); -#if CONFIG_CLANG_VERSION < 110000 - if (fi_ptr->use_extra_checksum) - pos += store_gcov_u32(buffer, pos, fi_ptr->cfg_checksum); -#else pos += store_gcov_u32(buffer, pos, fi_ptr->cfg_checksum); -#endif - pos += store_gcov_u32(buffer, pos, GCOV_TAG_COUNTER_BASE); pos += store_gcov_u32(buffer, pos, fi_ptr->num_counters * 2); for (i = 0; i < fi_ptr->num_counters; i++) @@ -558,102 +389,3 @@ static size_t convert_to_gcda(char *buffer, struct gcov_info *info) return pos; } - -/** - * gcov_iter_new - allocate and initialize profiling data iterator - * @info: profiling data set to be iterated - * - * Return file iterator on success, %NULL otherwise. - */ -struct gcov_iterator *gcov_iter_new(struct gcov_info *info) -{ - struct gcov_iterator *iter; - - iter = kzalloc(sizeof(struct gcov_iterator), GFP_KERNEL); - if (!iter) - goto err_free; - - iter->info = info; - /* Dry-run to get the actual buffer size. */ - iter->size = convert_to_gcda(NULL, info); - iter->buffer = vmalloc(iter->size); - if (!iter->buffer) - goto err_free; - - convert_to_gcda(iter->buffer, info); - - return iter; - -err_free: - kfree(iter); - return NULL; -} - - -/** - * gcov_iter_get_info - return profiling data set for given file iterator - * @iter: file iterator - */ -void gcov_iter_free(struct gcov_iterator *iter) -{ - vfree(iter->buffer); - kfree(iter); -} - -/** - * gcov_iter_get_info - return profiling data set for given file iterator - * @iter: file iterator - */ -struct gcov_info *gcov_iter_get_info(struct gcov_iterator *iter) -{ - return iter->info; -} - -/** - * gcov_iter_start - reset file iterator to starting position - * @iter: file iterator - */ -void gcov_iter_start(struct gcov_iterator *iter) -{ - iter->pos = 0; -} - -/** - * gcov_iter_next - advance file iterator to next logical record - * @iter: file iterator - * - * Return zero if new position is valid, non-zero if iterator has reached end. - */ -int gcov_iter_next(struct gcov_iterator *iter) -{ - if (iter->pos < iter->size) - iter->pos += ITER_STRIDE; - - if (iter->pos >= iter->size) - return -EINVAL; - - return 0; -} - -/** - * gcov_iter_write - write data for current pos to seq_file - * @iter: file iterator - * @seq: seq_file handle - * - * Return zero on success, non-zero otherwise. - */ -int gcov_iter_write(struct gcov_iterator *iter, struct seq_file *seq) -{ - size_t len; - - if (iter->pos >= iter->size) - return -EINVAL; - - len = ITER_STRIDE; - if (iter->pos + len > iter->size) - len = iter->size - iter->pos; - - seq_write(seq, iter->buffer + iter->pos, len); - - return 0; -} diff --git a/kernel/gcov/fs.c b/kernel/gcov/fs.c index 82babf5aa077..5c3086cad8f9 100644 --- a/kernel/gcov/fs.c +++ b/kernel/gcov/fs.c @@ -26,6 +26,7 @@ #include <linux/slab.h> #include <linux/mutex.h> #include <linux/seq_file.h> +#include <linux/mm.h> #include "gcov.h" /** @@ -85,6 +86,115 @@ static int __init gcov_persist_setup(char *str) } __setup("gcov_persist=", gcov_persist_setup); +#define ITER_STRIDE PAGE_SIZE + +/** + * struct gcov_iterator - specifies current file position in logical records + * @info: associated profiling data + * @buffer: buffer containing file data + * @size: size of buffer + * @pos: current position in file + */ +struct gcov_iterator { + struct gcov_info *info; + size_t size; + loff_t pos; + char buffer[]; +}; + +/** + * gcov_iter_new - allocate and initialize profiling data iterator + * @info: profiling data set to be iterated + * + * Return file iterator on success, %NULL otherwise. + */ +static struct gcov_iterator *gcov_iter_new(struct gcov_info *info) +{ + struct gcov_iterator *iter; + size_t size; + + /* Dry-run to get the actual buffer size. */ + size = convert_to_gcda(NULL, info); + + iter = kvmalloc(struct_size(iter, buffer, size), GFP_KERNEL); + if (!iter) + return NULL; + + iter->info = info; + iter->size = size; + convert_to_gcda(iter->buffer, info); + + return iter; +} + + +/** + * gcov_iter_free - free iterator data + * @iter: file iterator + */ +static void gcov_iter_free(struct gcov_iterator *iter) +{ + kvfree(iter); +} + +/** + * gcov_iter_get_info - return profiling data set for given file iterator + * @iter: file iterator + */ +static struct gcov_info *gcov_iter_get_info(struct gcov_iterator *iter) +{ + return iter->info; +} + +/** + * gcov_iter_start - reset file iterator to starting position + * @iter: file iterator + */ +static void gcov_iter_start(struct gcov_iterator *iter) +{ + iter->pos = 0; +} + +/** + * gcov_iter_next - advance file iterator to next logical record + * @iter: file iterator + * + * Return zero if new position is valid, non-zero if iterator has reached end. + */ +static int gcov_iter_next(struct gcov_iterator *iter) +{ + if (iter->pos < iter->size) + iter->pos += ITER_STRIDE; + + if (iter->pos >= iter->size) + return -EINVAL; + + return 0; +} + +/** + * gcov_iter_write - write data for current pos to seq_file + * @iter: file iterator + * @seq: seq_file handle + * + * Return zero on success, non-zero otherwise. + */ +static int gcov_iter_write(struct gcov_iterator *iter, struct seq_file *seq) +{ + size_t len; + + if (iter->pos >= iter->size) + return -EINVAL; + + len = ITER_STRIDE; + if (iter->pos + len > iter->size) + len = iter->size - iter->pos; + + seq_write(seq, iter->buffer + iter->pos, len); + + return 0; +} + /* * seq_file.start() implementation for gcov data files. Note that the * gcov_iterator interface is designed to be more restrictive than seq_file diff --git a/kernel/gcov/gcc_4_7.c b/kernel/gcov/gcc_4_7.c index c53408a00d0b..460c12b7dfea 100644 --- a/kernel/gcov/gcc_4_7.c +++ b/kernel/gcov/gcc_4_7.c @@ -15,8 +15,7 @@ #include <linux/errno.h> #include <linux/slab.h> #include <linux/string.h> -#include <linux/seq_file.h> -#include <linux/vmalloc.h> +#include <linux/mm.h> #include "gcov.h" #if (__GNUC__ >= 10) @@ -310,7 +309,7 @@ struct gcov_info *gcov_info_dup(struct gcov_info *info) cv_size = sizeof(gcov_type) * sci_ptr->num; - dci_ptr->values = vmalloc(cv_size); + dci_ptr->values = kvmalloc(cv_size, GFP_KERNEL); if (!dci_ptr->values) goto err_free; @@ -352,7 +351,7 @@ void gcov_info_free(struct gcov_info *info) ci_ptr = info->functions[fi_idx]->ctrs; for (ct_idx = 0; ct_idx < active; ct_idx++, ci_ptr++) - vfree(ci_ptr->values); + kvfree(ci_ptr->values); kfree(info->functions[fi_idx]); } @@ -363,71 +362,6 @@ free_info: kfree(info); } -#define ITER_STRIDE PAGE_SIZE - -/** - * struct gcov_iterator - specifies current file position in logical records - * @info: associated profiling data - * @buffer: buffer containing file data - * @size: size of buffer - * @pos: current position in file - */ -struct gcov_iterator { - struct gcov_info *info; - void *buffer; - size_t size; - loff_t pos; -}; - -/** - * store_gcov_u32 - store 32 bit number in gcov format to buffer - * @buffer: target buffer or NULL - * @off: offset into the buffer - * @v: value to be stored - * - * Number format defined by gcc: numbers are recorded in the 32 bit - * unsigned binary form of the endianness of the machine generating the - * file. Returns the number of bytes stored. If @buffer is %NULL, doesn't - * store anything. - */ -static size_t store_gcov_u32(void *buffer, size_t off, u32 v) -{ - u32 *data; - - if (buffer) { - data = buffer + off; - *data = v; - } - - return sizeof(*data); -} - -/** - * store_gcov_u64 - store 64 bit number in gcov format to buffer - * @buffer: target buffer or NULL - * @off: offset into the buffer - * @v: value to be stored - * - * Number format defined by gcc: numbers are recorded in the 32 bit - * unsigned binary form of the endianness of the machine generating the - * file. 64 bit numbers are stored as two 32 bit numbers, the low part - * first. Returns the number of bytes stored. If @buffer is %NULL, doesn't store - * anything. - */ -static size_t store_gcov_u64(void *buffer, size_t off, u64 v) -{ - u32 *data; - - if (buffer) { - data = buffer + off; - - data[0] = (v & 0xffffffffUL); - data[1] = (v >> 32); - } - - return sizeof(*data) * 2; -} - /** * convert_to_gcda - convert profiling data set to gcda file format * @buffer: the buffer to store file data or %NULL if no data should be stored @@ -435,7 +369,7 @@ static size_t store_gcov_u64(void *buffer, size_t off, u64 v) * * Returns the number of bytes that were/would have been stored into the buffer. */ -static size_t convert_to_gcda(char *buffer, struct gcov_info *info) +size_t convert_to_gcda(char *buffer, struct gcov_info *info) { struct gcov_fn_info *fi_ptr; struct gcov_ctr_info *ci_ptr; @@ -481,102 +415,3 @@ static size_t convert_to_gcda(char *buffer, struct gcov_info *info) return pos; } - -/** - * gcov_iter_new - allocate and initialize profiling data iterator - * @info: profiling data set to be iterated - * - * Return file iterator on success, %NULL otherwise. - */ -struct gcov_iterator *gcov_iter_new(struct gcov_info *info) -{ - struct gcov_iterator *iter; - - iter = kzalloc(sizeof(struct gcov_iterator), GFP_KERNEL); - if (!iter) - goto err_free; - - iter->info = info; - /* Dry-run to get the actual buffer size. */ - iter->size = convert_to_gcda(NULL, info); - iter->buffer = vmalloc(iter->size); - if (!iter->buffer) - goto err_free; - - convert_to_gcda(iter->buffer, info); - - return iter; - -err_free: - kfree(iter); - return NULL; -} - - -/** - * gcov_iter_get_info - return profiling data set for given file iterator - * @iter: file iterator - */ -void gcov_iter_free(struct gcov_iterator *iter) -{ - vfree(iter->buffer); - kfree(iter); -} - -/** - * gcov_iter_get_info - return profiling data set for given file iterator - * @iter: file iterator - */ -struct gcov_info *gcov_iter_get_info(struct gcov_iterator *iter) -{ - return iter->info; -} - -/** - * gcov_iter_start - reset file iterator to starting position - * @iter: file iterator - */ -void gcov_iter_start(struct gcov_iterator *iter) -{ - iter->pos = 0; -} - -/** - * gcov_iter_next - advance file iterator to next logical record - * @iter: file iterator - * - * Return zero if new position is valid, non-zero if iterator has reached end. - */ -int gcov_iter_next(struct gcov_iterator *iter) -{ - if (iter->pos < iter->size) - iter->pos += ITER_STRIDE; - - if (iter->pos >= iter->size) - return -EINVAL; - - return 0; -} - -/** - * gcov_iter_write - write data for current pos to seq_file - * @iter: file iterator - * @seq: seq_file handle - * - * Return zero on success, non-zero otherwise. - */ -int gcov_iter_write(struct gcov_iterator *iter, struct seq_file *seq) -{ - size_t len; - - if (iter->pos >= iter->size) - return -EINVAL; - - len = ITER_STRIDE; - if (iter->pos + len > iter->size) - len = iter->size - iter->pos; - - seq_write(seq, iter->buffer + iter->pos, len); - - return 0; -} diff --git a/kernel/gcov/gcov.h b/kernel/gcov/gcov.h index 6ab2c1808c9d..912b8ea01d33 100644 --- a/kernel/gcov/gcov.h +++ b/kernel/gcov/gcov.h @@ -48,6 +48,7 @@ struct gcov_info *gcov_info_next(struct gcov_info *info); void gcov_info_link(struct gcov_info *info); void gcov_info_unlink(struct gcov_info *prev, struct gcov_info *info); bool gcov_info_within_module(struct gcov_info *info, struct module *mod); +size_t convert_to_gcda(char *buffer, struct gcov_info *info); /* Base interface. */ enum gcov_action { @@ -58,16 +59,9 @@ enum gcov_action { void gcov_event(enum gcov_action action, struct gcov_info *info); void gcov_enable_events(void); -/* Iterator control. */ -struct seq_file; -struct gcov_iterator; - -struct gcov_iterator *gcov_iter_new(struct gcov_info *info); -void gcov_iter_free(struct gcov_iterator *iter); -void gcov_iter_start(struct gcov_iterator *iter); -int gcov_iter_next(struct gcov_iterator *iter); -int gcov_iter_write(struct gcov_iterator *iter, struct seq_file *seq); -struct gcov_info *gcov_iter_get_info(struct gcov_iterator *iter); +/* writing helpers */ +size_t store_gcov_u32(void *buffer, size_t off, u32 v); +size_t store_gcov_u64(void *buffer, size_t off, u64 v); /* gcov_info control. */ void gcov_info_reset(struct gcov_info *info); diff --git a/kernel/kexec_core.c b/kernel/kexec_core.c index a0b6780740c8..f099baee3578 100644 --- a/kernel/kexec_core.c +++ b/kernel/kexec_core.c @@ -37,6 +37,7 @@ #include <linux/compiler.h> #include <linux/hugetlb.h> #include <linux/objtool.h> +#include <linux/kmsg_dump.h> #include <asm/page.h> #include <asm/sections.h> @@ -1165,7 +1166,7 @@ int kernel_kexec(void) #endif { kexec_in_progress = true; - kernel_restart_prepare(NULL); + kernel_restart_prepare("kexec reboot"); migrate_to_reboot_cpu(); /* @@ -1179,6 +1180,7 @@ int kernel_kexec(void) machine_shutdown(); } + kmsg_dump(KMSG_DUMP_SHUTDOWN); machine_kexec(kexec_image); #ifdef CONFIG_KEXEC_JUMP diff --git a/kernel/kexec_file.c b/kernel/kexec_file.c index 5c3447cf7ad5..33400ff051a8 100644 --- a/kernel/kexec_file.c +++ b/kernel/kexec_file.c @@ -740,8 +740,10 @@ static int kexec_calculate_store_digests(struct kimage *image) sha_region_sz = KEXEC_SEGMENT_MAX * sizeof(struct kexec_sha_region); sha_regions = vzalloc(sha_region_sz); - if (!sha_regions) + if (!sha_regions) { + ret = -ENOMEM; goto out_free_desc; + } desc->tfm = tfm; diff --git a/kernel/kmod.c b/kernel/kmod.c index 3cd075ce2a1e..b717134ebe17 100644 --- a/kernel/kmod.c +++ b/kernel/kmod.c @@ -58,7 +58,7 @@ static DECLARE_WAIT_QUEUE_HEAD(kmod_wq); /* modprobe_path is set via /proc/sys. */ -char modprobe_path[KMOD_PATH_LEN] = "/sbin/modprobe"; +char modprobe_path[KMOD_PATH_LEN] = CONFIG_MODPROBE_PATH; static void free_modprobe_argv(struct subprocess_info *info) { diff --git a/kernel/resource.c b/kernel/resource.c index 627e61b0c124..028a5ab18818 100644 --- a/kernel/resource.c +++ b/kernel/resource.c @@ -64,12 +64,8 @@ static DEFINE_RWLOCK(resource_lock); static struct resource *bootmem_resource_free; static DEFINE_SPINLOCK(bootmem_resource_lock); -static struct resource *next_resource(struct resource *p, bool sibling_only) +static struct resource *next_resource(struct resource *p) { - /* Caller wants to traverse through siblings only */ - if (sibling_only) - return p->sibling; - if (p->child) return p->child; while (!p->sibling && p->parent) @@ -81,7 +77,7 @@ static void *r_next(struct seq_file *m, void *v, loff_t *pos) { struct resource *p = v; (*pos)++; - return (void *)next_resource(p, false); + return (void *)next_resource(p); } #ifdef CONFIG_PROC_FS @@ -330,14 +326,10 @@ EXPORT_SYMBOL(release_resource); * of the resource that's within [@start..@end]; if none is found, returns * -ENODEV. Returns -EINVAL for invalid parameters. * - * This function walks the whole tree and not just first level children - * unless @first_lvl is true. - * * @start: start address of the resource searched for * @end: end address of same resource * @flags: flags which the resource must have * @desc: descriptor the resource must have - * @first_lvl: walk only the first level children, if set * @res: return ptr, if resource found * * The caller must specify @start, @end, @flags, and @desc @@ -345,9 +337,8 @@ EXPORT_SYMBOL(release_resource); */ static int find_next_iomem_res(resource_size_t start, resource_size_t end, unsigned long flags, unsigned long desc, - bool first_lvl, struct resource *res) + struct resource *res) { - bool siblings_only = true; struct resource *p; if (!res) @@ -358,7 +349,7 @@ static int find_next_iomem_res(resource_size_t start, resource_size_t end, read_lock(&resource_lock); - for (p = iomem_resource.child; p; p = next_resource(p, siblings_only)) { + for (p = iomem_resource.child; p; p = next_resource(p)) { /* If we passed the resource we are looking for, stop */ if (p->start > end) { p = NULL; @@ -369,13 +360,6 @@ static int find_next_iomem_res(resource_size_t start, resource_size_t end, if (p->end < start) continue; - /* - * Now that we found a range that matches what we look for, - * check the flags and the descriptor. If we were not asked to - * use only the first level, start looking at children as well. - */ - siblings_only = first_lvl; - if ((p->flags & flags) != flags) continue; if ((desc != IORES_DESC_NONE) && (desc != p->desc)) @@ -402,14 +386,14 @@ static int find_next_iomem_res(resource_size_t start, resource_size_t end, static int __walk_iomem_res_desc(resource_size_t start, resource_size_t end, unsigned long flags, unsigned long desc, - bool first_lvl, void *arg, + void *arg, int (*func)(struct resource *, void *)) { struct resource res; int ret = -EINVAL; while (start < end && - !find_next_iomem_res(start, end, flags, desc, first_lvl, &res)) { + !find_next_iomem_res(start, end, flags, desc, &res)) { ret = (*func)(&res, arg); if (ret) break; @@ -431,7 +415,6 @@ static int __walk_iomem_res_desc(resource_size_t start, resource_size_t end, * @arg: function argument for the callback @func * @func: callback function that is called for each qualifying resource area * - * This walks through whole tree and not just first level children. * All the memory ranges which overlap start,end and also match flags and * desc are valid candidates. * @@ -441,7 +424,7 @@ static int __walk_iomem_res_desc(resource_size_t start, resource_size_t end, int walk_iomem_res_desc(unsigned long desc, unsigned long flags, u64 start, u64 end, void *arg, int (*func)(struct resource *, void *)) { - return __walk_iomem_res_desc(start, end, flags, desc, false, arg, func); + return __walk_iomem_res_desc(start, end, flags, desc, arg, func); } EXPORT_SYMBOL_GPL(walk_iomem_res_desc); @@ -457,8 +440,8 @@ int walk_system_ram_res(u64 start, u64 end, void *arg, { unsigned long flags = IORESOURCE_SYSTEM_RAM | IORESOURCE_BUSY; - return __walk_iomem_res_desc(start, end, flags, IORES_DESC_NONE, true, - arg, func); + return __walk_iomem_res_desc(start, end, flags, IORES_DESC_NONE, arg, + func); } /* @@ -470,17 +453,14 @@ int walk_mem_res(u64 start, u64 end, void *arg, { unsigned long flags = IORESOURCE_MEM | IORESOURCE_BUSY; - return __walk_iomem_res_desc(start, end, flags, IORES_DESC_NONE, true, - arg, func); + return __walk_iomem_res_desc(start, end, flags, IORES_DESC_NONE, arg, + func); } /* * This function calls the @func callback against all memory ranges of type * System RAM which are marked as IORESOURCE_SYSTEM_RAM and IORESOUCE_BUSY. * It is to be used only for System RAM. - * - * This will find System RAM ranges that are children of top-level resources - * in addition to top-level System RAM resources. */ int walk_system_ram_range(unsigned long start_pfn, unsigned long nr_pages, void *arg, int (*func)(unsigned long, unsigned long, void *)) @@ -495,8 +475,7 @@ int walk_system_ram_range(unsigned long start_pfn, unsigned long nr_pages, end = ((u64)(start_pfn + nr_pages) << PAGE_SHIFT) - 1; flags = IORESOURCE_SYSTEM_RAM | IORESOURCE_BUSY; while (start < end && - !find_next_iomem_res(start, end, flags, IORES_DESC_NONE, - false, &res)) { + !find_next_iomem_res(start, end, flags, IORES_DESC_NONE, &res)) { pfn = PFN_UP(res.start); end_pfn = PFN_DOWN(res.end + 1); if (end_pfn > pfn) @@ -523,6 +502,34 @@ int __weak page_is_ram(unsigned long pfn) } EXPORT_SYMBOL_GPL(page_is_ram); +static int __region_intersects(resource_size_t start, size_t size, + unsigned long flags, unsigned long desc) +{ + struct resource res; + int type = 0; int other = 0; + struct resource *p; + + res.start = start; + res.end = start + size - 1; + + for (p = iomem_resource.child; p ; p = p->sibling) { + bool is_type = (((p->flags & flags) == flags) && + ((desc == IORES_DESC_NONE) || + (desc == p->desc))); + + if (resource_overlaps(p, &res)) + is_type ? type++ : other++; + } + + if (type == 0) + return REGION_DISJOINT; + + if (other == 0) + return REGION_INTERSECTS; + + return REGION_MIXED; +} + /** * region_intersects() - determine intersection of region with known resources * @start: region start address @@ -546,31 +553,13 @@ EXPORT_SYMBOL_GPL(page_is_ram); int region_intersects(resource_size_t start, size_t size, unsigned long flags, unsigned long desc) { - struct resource res; - int type = 0; int other = 0; - struct resource *p; - - res.start = start; - res.end = start + size - 1; + int ret; read_lock(&resource_lock); - for (p = iomem_resource.child; p ; p = p->sibling) { - bool is_type = (((p->flags & flags) == flags) && - ((desc == IORES_DESC_NONE) || - (desc == p->desc))); - - if (resource_overlaps(p, &res)) - is_type ? type++ : other++; - } + ret = __region_intersects(start, size, flags, desc); read_unlock(&resource_lock); - if (type == 0) - return REGION_DISJOINT; - - if (other == 0) - return REGION_INTERSECTS; - - return REGION_MIXED; + return ret; } EXPORT_SYMBOL_GPL(region_intersects); @@ -1171,31 +1160,16 @@ struct address_space *iomem_get_mapping(void) return smp_load_acquire(&iomem_inode)->i_mapping; } -/** - * __request_region - create a new busy resource region - * @parent: parent resource descriptor - * @start: resource start address - * @n: resource region size - * @name: reserving caller's ID string - * @flags: IO resource flags - */ -struct resource * __request_region(struct resource *parent, +static int __request_region_locked(struct resource *res, struct resource *parent, resource_size_t start, resource_size_t n, const char *name, int flags) { DECLARE_WAITQUEUE(wait, current); - struct resource *res = alloc_resource(GFP_KERNEL); - struct resource *orig_parent = parent; - - if (!res) - return NULL; res->name = name; res->start = start; res->end = start + n - 1; - write_lock(&resource_lock); - for (;;) { struct resource *conflict; @@ -1231,13 +1205,40 @@ struct resource * __request_region(struct resource *parent, continue; } /* Uhhuh, that didn't work out.. */ - free_resource(res); - res = NULL; - break; + return -EBUSY; } + + return 0; +} + +/** + * __request_region - create a new busy resource region + * @parent: parent resource descriptor + * @start: resource start address + * @n: resource region size + * @name: reserving caller's ID string + * @flags: IO resource flags + */ +struct resource *__request_region(struct resource *parent, + resource_size_t start, resource_size_t n, + const char *name, int flags) +{ + struct resource *res = alloc_resource(GFP_KERNEL); + int ret; + + if (!res) + return NULL; + + write_lock(&resource_lock); + ret = __request_region_locked(res, parent, start, n, name, flags); write_unlock(&resource_lock); - if (res && orig_parent == &iomem_resource) + if (ret) { + free_resource(res); + return NULL; + } + + if (parent == &iomem_resource) revoke_iomem(res); return res; @@ -1779,25 +1780,56 @@ static struct resource *__request_free_mem_region(struct device *dev, { resource_size_t end, addr; struct resource *res; + struct region_devres *dr = NULL; size = ALIGN(size, 1UL << PA_SECTION_SHIFT); end = min_t(unsigned long, base->end, (1UL << MAX_PHYSMEM_BITS) - 1); addr = end - size + 1UL; + res = alloc_resource(GFP_KERNEL); + if (!res) + return ERR_PTR(-ENOMEM); + + if (dev) { + dr = devres_alloc(devm_region_release, + sizeof(struct region_devres), GFP_KERNEL); + if (!dr) { + free_resource(res); + return ERR_PTR(-ENOMEM); + } + } + + write_lock(&resource_lock); for (; addr > size && addr >= base->start; addr -= size) { - if (region_intersects(addr, size, 0, IORES_DESC_NONE) != + if (__region_intersects(addr, size, 0, IORES_DESC_NONE) != REGION_DISJOINT) continue; - if (dev) - res = devm_request_mem_region(dev, addr, size, name); - else - res = request_mem_region(addr, size, name); - if (!res) - return ERR_PTR(-ENOMEM); + if (!__request_region_locked(res, &iomem_resource, addr, size, + name, 0)) + break; + + if (dev) { + dr->parent = &iomem_resource; + dr->start = addr; + dr->n = size; + devres_add(dev, dr); + } + res->desc = IORES_DESC_DEVICE_PRIVATE_MEMORY; + write_unlock(&resource_lock); + + /* + * A driver is claiming this region so revoke any mappings. + */ + revoke_iomem(res); return res; } + write_unlock(&resource_lock); + + free_resource(res); + if (dr) + devres_free(dr); return ERR_PTR(-ERANGE); } diff --git a/kernel/sys.c b/kernel/sys.c index 3d62c9599dc0..3a583a29815f 100644 --- a/kernel/sys.c +++ b/kernel/sys.c @@ -1590,7 +1590,7 @@ int do_prlimit(struct task_struct *tsk, unsigned int resource, /* * RLIMIT_CPU handling. Arm the posix CPU timer if the limit is not - * infite. In case of RLIM_INFINITY the posix CPU timer code + * infinite. In case of RLIM_INFINITY the posix CPU timer code * ignores the rlimit. */ if (!retval && new_rlim && resource == RLIMIT_CPU && @@ -2029,7 +2029,7 @@ static int prctl_set_mm_map(int opt, const void __user *addr, unsigned long data } /* - * arg_lock protects concurent updates but we still need mmap_lock for + * arg_lock protects concurrent updates but we still need mmap_lock for * read to exclude races with sys_brk. */ mmap_read_lock(mm); @@ -2041,7 +2041,7 @@ static int prctl_set_mm_map(int opt, const void __user *addr, unsigned long data * output in procfs mostly, except * * - @start_brk/@brk which are used in do_brk_flags but kernel lookups - * for VMAs when updating these memvers so anything wrong written + * for VMAs when updating these members so anything wrong written * here cause kernel to swear at userspace program but won't lead * to any problem in kernel itself */ @@ -2143,7 +2143,7 @@ static int prctl_set_mm(int opt, unsigned long addr, error = -EINVAL; /* - * arg_lock protects concurent updates of arg boundaries, we need + * arg_lock protects concurrent updates of arg boundaries, we need * mmap_lock for a) concurrent sys_brk, b) finding VMA for addr * validation. */ @@ -2210,7 +2210,7 @@ static int prctl_set_mm(int opt, unsigned long addr, * If command line arguments and environment * are placed somewhere else on stack, we can * set them up here, ARG_START/END to setup - * command line argumets and ENV_START/END + * command line arguments and ENV_START/END * for environment. */ case PR_SET_MM_START_STACK: @@ -2258,8 +2258,8 @@ static int prctl_get_tid_address(struct task_struct *me, int __user * __user *ti static int propagate_has_child_subreaper(struct task_struct *p, void *data) { /* - * If task has has_child_subreaper - all its decendants - * already have these flag too and new decendants will + * If task has has_child_subreaper - all its descendants + * already have these flag too and new descendants will * inherit it on fork, skip them. * * If we've found child_reaper - skip descendants in diff --git a/kernel/umh.c b/kernel/umh.c index 3f646613a9d3..36c123360ab8 100644 --- a/kernel/umh.c +++ b/kernel/umh.c @@ -27,6 +27,7 @@ #include <linux/ptrace.h> #include <linux/async.h> #include <linux/uaccess.h> +#include <linux/initrd.h> #include <trace/events/module.h> @@ -107,6 +108,7 @@ static int call_usermodehelper_exec_async(void *data) commit_creds(new); + wait_for_initramfs(); retval = kernel_execve(sub_info->path, (const char *const *)sub_info->argv, (const char *const *)sub_info->envp); @@ -336,8 +338,8 @@ static void helper_unlock(void) * @argv: arg vector for process * @envp: environment for process * @gfp_mask: gfp mask for memory allocation - * @cleanup: a cleanup function * @init: an init function + * @cleanup: a cleanup function * @data: arbitrary context sensitive data * * Returns either %NULL on allocation failure, or a subprocess_info @@ -348,7 +350,7 @@ static void helper_unlock(void) * exec. A non-zero return code causes the process to error out, exit, * and return the failure to the calling process * - * The cleanup function is just before ethe subprocess_info is about to + * The cleanup function is just before the subprocess_info is about to * be freed. This can be used for freeing the argv and envp. The * Function must be runnable in either a process context or the * context in which call_usermodehelper_exec is called. @@ -384,7 +386,7 @@ EXPORT_SYMBOL(call_usermodehelper_setup); /** * call_usermodehelper_exec - start a usermode application - * @sub_info: information about the subprocessa + * @sub_info: information about the subprocess * @wait: wait for the application to finish and return status. * when UMH_NO_WAIT don't wait at all, but you get no useful error back * when the program couldn't be exec'ed. This makes it safe to call diff --git a/kernel/up.c b/kernel/up.c index bf20b4a9af60..df50828cc2f0 100644 --- a/kernel/up.c +++ b/kernel/up.c @@ -38,7 +38,7 @@ EXPORT_SYMBOL(smp_call_function_single_async); /* * Preemption is disabled here to make sure the cond_func is called under the - * same condtions in UP and SMP. + * same conditions in UP and SMP. */ void on_each_cpu_cond_mask(smp_cond_func_t cond_func, smp_call_func_t func, void *info, bool wait, const struct cpumask *mask) diff --git a/kernel/user_namespace.c b/kernel/user_namespace.c index 9a4b980d695b..8d62863721b0 100644 --- a/kernel/user_namespace.c +++ b/kernel/user_namespace.c @@ -85,7 +85,7 @@ int create_user_ns(struct cred *new) /* * Verify that we can not violate the policy of which files * may be accessed that is specified by the root directory, - * by verifing that the root directory is at the root of the + * by verifying that the root directory is at the root of the * mount namespace which allows all files to be accessed. */ ret = -EPERM; @@ -1014,7 +1014,7 @@ static ssize_t map_write(struct file *file, const char __user *buf, goto out; ret = -EINVAL; } - /* Be very certaint the new map actually exists */ + /* Be very certain the new map actually exists */ if (new_map.nr_extents == 0) goto out; @@ -1169,7 +1169,7 @@ static bool new_idmap_permitted(const struct file *file, /* Allow the specified ids if we have the appropriate capability * (CAP_SETUID or CAP_SETGID) over the parent user namespace. - * And the opener of the id file also had the approprpiate capability. + * And the opener of the id file also has the appropriate capability. */ if (ns_capable(ns->parent, cap_setid) && file_ns_capable(file, ns->parent, cap_setid)) diff --git a/lib/bch.c b/lib/bch.c index 7c031ee8b93b..c8095f30f254 100644 --- a/lib/bch.c +++ b/lib/bch.c @@ -584,7 +584,7 @@ static int find_affine4_roots(struct bch_control *bch, unsigned int a, k = a_log(bch, a); rows[0] = c; - /* buid linear system to solve X^4+aX^2+bX+c = 0 */ + /* build linear system to solve X^4+aX^2+bX+c = 0 */ for (i = 0; i < m; i++) { rows[i+1] = bch->a_pow_tab[4*i]^ (a ? bch->a_pow_tab[mod_s(bch, k)] : 0)^ diff --git a/lib/crc8.c b/lib/crc8.c index 595a5a75e3cd..1ad8e501d9b6 100644 --- a/lib/crc8.c +++ b/lib/crc8.c @@ -71,7 +71,7 @@ EXPORT_SYMBOL(crc8_populate_lsb); * @nbytes: number of bytes in data buffer. * @crc: previous returned crc8 value. */ -u8 crc8(const u8 table[CRC8_TABLE_SIZE], u8 *pdata, size_t nbytes, u8 crc) +u8 crc8(const u8 table[CRC8_TABLE_SIZE], const u8 *pdata, size_t nbytes, u8 crc) { /* loop over the buffer data */ while (nbytes-- > 0) diff --git a/lib/decompress_unlzma.c b/lib/decompress_unlzma.c index 1cf409ef8d04..20a858031f12 100644 --- a/lib/decompress_unlzma.c +++ b/lib/decompress_unlzma.c @@ -391,7 +391,7 @@ static inline int INIT process_bit0(struct writer *wr, struct rc *rc, static inline int INIT process_bit1(struct writer *wr, struct rc *rc, struct cstate *cst, uint16_t *p, int pos_state, uint16_t *prob) { - int offset; + int offset; uint16_t *prob_len; int num_bits; int len; diff --git a/lib/find_bit.c b/lib/find_bit.c index f67f86fd2f62..0f8e2e369b1d 100644 --- a/lib/find_bit.c +++ b/lib/find_bit.c @@ -29,7 +29,7 @@ * searching it for one bits. * - The optional "addr2", which is anded with "addr1" if present. */ -static unsigned long _find_next_bit(const unsigned long *addr1, +unsigned long _find_next_bit(const unsigned long *addr1, const unsigned long *addr2, unsigned long nbits, unsigned long start, unsigned long invert, unsigned long le) { @@ -68,44 +68,14 @@ static unsigned long _find_next_bit(const unsigned long *addr1, return min(start + __ffs(tmp), nbits); } -#endif - -#ifndef find_next_bit -/* - * Find the next set bit in a memory region. - */ -unsigned long find_next_bit(const unsigned long *addr, unsigned long size, - unsigned long offset) -{ - return _find_next_bit(addr, NULL, size, offset, 0UL, 0); -} -EXPORT_SYMBOL(find_next_bit); -#endif - -#ifndef find_next_zero_bit -unsigned long find_next_zero_bit(const unsigned long *addr, unsigned long size, - unsigned long offset) -{ - return _find_next_bit(addr, NULL, size, offset, ~0UL, 0); -} -EXPORT_SYMBOL(find_next_zero_bit); -#endif - -#if !defined(find_next_and_bit) -unsigned long find_next_and_bit(const unsigned long *addr1, - const unsigned long *addr2, unsigned long size, - unsigned long offset) -{ - return _find_next_bit(addr1, addr2, size, offset, 0UL, 0); -} -EXPORT_SYMBOL(find_next_and_bit); +EXPORT_SYMBOL(_find_next_bit); #endif #ifndef find_first_bit /* * Find the first set bit in a memory region. */ -unsigned long find_first_bit(const unsigned long *addr, unsigned long size) +unsigned long _find_first_bit(const unsigned long *addr, unsigned long size) { unsigned long idx; @@ -116,14 +86,14 @@ unsigned long find_first_bit(const unsigned long *addr, unsigned long size) return size; } -EXPORT_SYMBOL(find_first_bit); +EXPORT_SYMBOL(_find_first_bit); #endif #ifndef find_first_zero_bit /* * Find the first cleared bit in a memory region. */ -unsigned long find_first_zero_bit(const unsigned long *addr, unsigned long size) +unsigned long _find_first_zero_bit(const unsigned long *addr, unsigned long size) { unsigned long idx; @@ -134,11 +104,11 @@ unsigned long find_first_zero_bit(const unsigned long *addr, unsigned long size) return size; } -EXPORT_SYMBOL(find_first_zero_bit); +EXPORT_SYMBOL(_find_first_zero_bit); #endif #ifndef find_last_bit -unsigned long find_last_bit(const unsigned long *addr, unsigned long size) +unsigned long _find_last_bit(const unsigned long *addr, unsigned long size) { if (size) { unsigned long val = BITMAP_LAST_WORD_MASK(size); @@ -154,31 +124,9 @@ unsigned long find_last_bit(const unsigned long *addr, unsigned long size) } return size; } -EXPORT_SYMBOL(find_last_bit); -#endif - -#ifdef __BIG_ENDIAN - -#ifndef find_next_zero_bit_le -unsigned long find_next_zero_bit_le(const void *addr, unsigned - long size, unsigned long offset) -{ - return _find_next_bit(addr, NULL, size, offset, ~0UL, 1); -} -EXPORT_SYMBOL(find_next_zero_bit_le); -#endif - -#ifndef find_next_bit_le -unsigned long find_next_bit_le(const void *addr, unsigned - long size, unsigned long offset) -{ - return _find_next_bit(addr, NULL, size, offset, 0UL, 1); -} -EXPORT_SYMBOL(find_next_bit_le); +EXPORT_SYMBOL(_find_last_bit); #endif -#endif /* __BIG_ENDIAN */ - unsigned long find_next_clump8(unsigned long *clump, const unsigned long *addr, unsigned long size, unsigned long offset) { diff --git a/lib/genalloc.c b/lib/genalloc.c index 5dcf9cdcbc46..9a57257988c7 100644 --- a/lib/genalloc.c +++ b/lib/genalloc.c @@ -642,6 +642,7 @@ EXPORT_SYMBOL(gen_pool_set_algo); * @nr: The number of zeroed bits we're looking for * @data: additional data - unused * @pool: pool to find the fit region memory from + * @start_addr: not used in this function */ unsigned long gen_pool_first_fit(unsigned long *map, unsigned long size, unsigned long start, unsigned int nr, void *data, @@ -660,6 +661,7 @@ EXPORT_SYMBOL(gen_pool_first_fit); * @nr: The number of zeroed bits we're looking for * @data: data for alignment * @pool: pool to get order from + * @start_addr: start addr of alloction chunk */ unsigned long gen_pool_first_fit_align(unsigned long *map, unsigned long size, unsigned long start, unsigned int nr, void *data, @@ -687,6 +689,7 @@ EXPORT_SYMBOL(gen_pool_first_fit_align); * @nr: The number of zeroed bits we're looking for * @data: data for alignment * @pool: pool to get order from + * @start_addr: not used in this function */ unsigned long gen_pool_fixed_alloc(unsigned long *map, unsigned long size, unsigned long start, unsigned int nr, void *data, @@ -721,6 +724,7 @@ EXPORT_SYMBOL(gen_pool_fixed_alloc); * @nr: The number of zeroed bits we're looking for * @data: additional data - unused * @pool: pool to find the fit region memory from + * @start_addr: not used in this function */ unsigned long gen_pool_first_fit_order_align(unsigned long *map, unsigned long size, unsigned long start, @@ -735,13 +739,14 @@ EXPORT_SYMBOL(gen_pool_first_fit_order_align); /** * gen_pool_best_fit - find the best fitting region of memory - * macthing the size requirement (no alignment constraint) + * matching the size requirement (no alignment constraint) * @map: The address to base the search on * @size: The bitmap size in bits * @start: The bitnumber to start searching at * @nr: The number of zeroed bits we're looking for * @data: additional data - unused * @pool: pool to find the fit region memory from + * @start_addr: not used in this function * * Iterate over the bitmap to find the smallest free region * which we can allocate the memory. diff --git a/lib/list_sort.c b/lib/list_sort.c index a926d96ffd44..1e1e37762799 100644 --- a/lib/list_sort.c +++ b/lib/list_sort.c @@ -137,7 +137,7 @@ static void merge_final(void *priv, list_cmp_func_t cmp, struct list_head *head, * * * The merging is controlled by "count", the number of elements in the - * pending lists. This is beautiully simple code, but rather subtle. + * pending lists. This is beautifully simple code, but rather subtle. * * Each time we increment "count", we set one bit (bit k) and clear * bits k-1 .. 0. Each time this happens (except the very first time diff --git a/lib/parser.c b/lib/parser.c index 7a5769db389f..f1a6d90b8c34 100644 --- a/lib/parser.c +++ b/lib/parser.c @@ -98,7 +98,7 @@ static int match_one(char *s, const char *p, substring_t args[]) * locations. * * Description: Detects which if any of a set of token strings has been passed - * to it. Tokens can include up to MAX_OPT_ARGS instances of basic c-style + * to it. Tokens can include up to %MAX_OPT_ARGS instances of basic c-style * format identifiers which will be taken into account when matching the * tokens, and whose locations will be returned in the @args array. */ @@ -120,8 +120,10 @@ EXPORT_SYMBOL(match_token); * @base: base to use when converting string * * Description: Given a &substring_t and a base, attempts to parse the substring - * as a number in that base. On success, sets @result to the integer represented - * by the string and returns 0. Returns -ENOMEM, -EINVAL, or -ERANGE on failure. + * as a number in that base. + * + * Return: On success, sets @result to the integer represented by the + * string and returns 0. Returns -ENOMEM, -EINVAL, or -ERANGE on failure. */ static int match_number(substring_t *s, int *result, int base) { @@ -153,8 +155,10 @@ static int match_number(substring_t *s, int *result, int base) * @base: base to use when converting string * * Description: Given a &substring_t and a base, attempts to parse the substring - * as a number in that base. On success, sets @result to the integer represented - * by the string and returns 0. Returns -ENOMEM, -EINVAL, or -ERANGE on failure. + * as a number in that base. + * + * Return: On success, sets @result to the integer represented by the + * string and returns 0. Returns -ENOMEM, -EINVAL, or -ERANGE on failure. */ static int match_u64int(substring_t *s, u64 *result, int base) { @@ -178,9 +182,10 @@ static int match_u64int(substring_t *s, u64 *result, int base) * @s: substring_t to be scanned * @result: resulting integer on success * - * Description: Attempts to parse the &substring_t @s as a decimal integer. On - * success, sets @result to the integer represented by the string and returns 0. - * Returns -ENOMEM, -EINVAL, or -ERANGE on failure. + * Description: Attempts to parse the &substring_t @s as a decimal integer. + * + * Return: On success, sets @result to the integer represented by the string + * and returns 0. Returns -ENOMEM, -EINVAL, or -ERANGE on failure. */ int match_int(substring_t *s, int *result) { @@ -188,14 +193,15 @@ int match_int(substring_t *s, int *result) } EXPORT_SYMBOL(match_int); -/* +/** * match_uint - scan a decimal representation of an integer from a substring_t * @s: substring_t to be scanned * @result: resulting integer on success * - * Description: Attempts to parse the &substring_t @s as a decimal integer. On - * success, sets @result to the integer represented by the string and returns 0. - * Returns -ENOMEM, -EINVAL, or -ERANGE on failure. + * Description: Attempts to parse the &substring_t @s as a decimal integer. + * + * Return: On success, sets @result to the integer represented by the string + * and returns 0. Returns -ENOMEM, -EINVAL, or -ERANGE on failure. */ int match_uint(substring_t *s, unsigned int *result) { @@ -217,9 +223,10 @@ EXPORT_SYMBOL(match_uint); * @result: resulting unsigned long long on success * * Description: Attempts to parse the &substring_t @s as a long decimal - * integer. On success, sets @result to the integer represented by the - * string and returns 0. - * Returns -ENOMEM, -EINVAL, or -ERANGE on failure. + * integer. + * + * Return: On success, sets @result to the integer represented by the string + * and returns 0. Returns -ENOMEM, -EINVAL, or -ERANGE on failure. */ int match_u64(substring_t *s, u64 *result) { @@ -232,9 +239,10 @@ EXPORT_SYMBOL(match_u64); * @s: substring_t to be scanned * @result: resulting integer on success * - * Description: Attempts to parse the &substring_t @s as an octal integer. On - * success, sets @result to the integer represented by the string and returns - * 0. Returns -ENOMEM, -EINVAL, or -ERANGE on failure. + * Description: Attempts to parse the &substring_t @s as an octal integer. + * + * Return: On success, sets @result to the integer represented by the string + * and returns 0. Returns -ENOMEM, -EINVAL, or -ERANGE on failure. */ int match_octal(substring_t *s, int *result) { @@ -248,8 +256,9 @@ EXPORT_SYMBOL(match_octal); * @result: resulting integer on success * * Description: Attempts to parse the &substring_t @s as a hexadecimal integer. - * On success, sets @result to the integer represented by the string and - * returns 0. Returns -ENOMEM, -EINVAL, or -ERANGE on failure. + * + * Return: On success, sets @result to the integer represented by the string + * and returns 0. Returns -ENOMEM, -EINVAL, or -ERANGE on failure. */ int match_hex(substring_t *s, int *result) { @@ -263,10 +272,11 @@ EXPORT_SYMBOL(match_hex); * @str: the string to be parsed * * Description: Parse the string @str to check if matches wildcard - * pattern @pattern. The pattern may contain two type wildcardes: + * pattern @pattern. The pattern may contain two types of wildcards: * '*' - matches zero or more characters * '?' - matches one character - * If it's matched, return true, else return false. + * + * Return: If the @str matches the @pattern, return true, else return false. */ bool match_wildcard(const char *pattern, const char *str) { @@ -316,7 +326,9 @@ EXPORT_SYMBOL(match_wildcard); * * Description: Copy the characters in &substring_t @src to the * c-style string @dest. Copy no more than @size - 1 characters, plus - * the terminating NUL. Return length of @src. + * the terminating NUL. + * + * Return: length of @src. */ size_t match_strlcpy(char *dest, const substring_t *src, size_t size) { @@ -338,6 +350,9 @@ EXPORT_SYMBOL(match_strlcpy); * Description: Allocates and returns a string filled with the contents of * the &substring_t @s. The caller is responsible for freeing the returned * string with kfree(). + * + * Return: the address of the newly allocated NUL-terminated string or + * %NULL on error. */ char *match_strdup(const substring_t *s) { diff --git a/lib/percpu_counter.c b/lib/percpu_counter.c index 00f666d94486..ed610b75dc32 100644 --- a/lib/percpu_counter.c +++ b/lib/percpu_counter.c @@ -72,7 +72,7 @@ void percpu_counter_set(struct percpu_counter *fbc, s64 amount) } EXPORT_SYMBOL(percpu_counter_set); -/** +/* * This function is both preempt and irq safe. The former is due to explicit * preemption disable. The latter is guaranteed by the fact that the slow path * is explicitly protected by an irq-safe spinlock whereas the fast patch uses diff --git a/lib/stackdepot.c b/lib/stackdepot.c index 49f67a0c6e5d..df9179f4f441 100644 --- a/lib/stackdepot.c +++ b/lib/stackdepot.c @@ -71,7 +71,7 @@ static void *stack_slabs[STACK_ALLOC_MAX_SLABS]; static int depot_index; static int next_slab_inited; static size_t depot_offset; -static DEFINE_SPINLOCK(depot_lock); +static DEFINE_RAW_SPINLOCK(depot_lock); static bool init_stack_slab(void **prealloc) { @@ -305,7 +305,7 @@ depot_stack_handle_t stack_depot_save(unsigned long *entries, prealloc = page_address(page); } - spin_lock_irqsave(&depot_lock, flags); + raw_spin_lock_irqsave(&depot_lock, flags); found = find_stack(*bucket, entries, nr_entries, hash); if (!found) { @@ -329,7 +329,7 @@ depot_stack_handle_t stack_depot_save(unsigned long *entries, WARN_ON(!init_stack_slab(&prealloc)); } - spin_unlock_irqrestore(&depot_lock, flags); + raw_spin_unlock_irqrestore(&depot_lock, flags); exit: if (prealloc) { /* Nobody used this memory, ok to free it. */ diff --git a/mm/balloon_compaction.c b/mm/balloon_compaction.c index 26de020aae7b..907fefde2572 100644 --- a/mm/balloon_compaction.c +++ b/mm/balloon_compaction.c @@ -58,7 +58,7 @@ EXPORT_SYMBOL_GPL(balloon_page_list_enqueue); /** * balloon_page_list_dequeue() - removes pages from balloon's page list and * returns a list of the pages. - * @b_dev_info: balloon device decriptor where we will grab a page from. + * @b_dev_info: balloon device descriptor where we will grab a page from. * @pages: pointer to the list of pages that would be returned to the caller. * @n_req_pages: number of requested pages. * @@ -157,7 +157,7 @@ EXPORT_SYMBOL_GPL(balloon_page_enqueue); /* * balloon_page_dequeue - removes a page from balloon's page list and returns * its address to allow the driver to release the page. - * @b_dev_info: balloon device decriptor where we will grab a page from. + * @b_dev_info: balloon device descriptor where we will grab a page from. * * Driver must call this function to properly dequeue a previously enqueued page * before definitively releasing it back to the guest system. diff --git a/mm/compaction.c b/mm/compaction.c index 3a6c6b821f80..84fde270ae74 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -2012,8 +2012,8 @@ static unsigned int fragmentation_score_wmark(pg_data_t *pgdat, bool low) unsigned int wmark_low; /* - * Cap the low watermak to avoid excessive compaction - * activity in case a user sets the proactivess tunable + * Cap the low watermark to avoid excessive compaction + * activity in case a user sets the proactiveness tunable * close to 100 (maximum). */ wmark_low = max(100U - sysctl_compaction_proactiveness, 5U); diff --git a/mm/filemap.c b/mm/filemap.c index 7fadf211643c..66f7e9fdfbc4 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -2755,7 +2755,7 @@ unsigned int seek_page_size(struct xa_state *xas, struct page *page) * entirely memory-based such as tmpfs, and filesystems which support * unwritten extents. * - * Return: The requested offset on successs, or -ENXIO if @whence specifies + * Return: The requested offset on success, or -ENXIO if @whence specifies * SEEK_DATA and there is no data after @start. There is an implicit hole * after @end - 1, so SEEK_HOLE returns @end if all the bytes between @start * and @end contain data. @@ -1575,7 +1575,7 @@ finish_or_fault: * Returns NULL on any kind of failure - a hole must then be inserted into * the corefile, to preserve alignment with its headers; and also returns * NULL wherever the ZERO_PAGE, or an anonymous pte_none, has been found - - * allowing a hole to be left in the corefile to save diskspace. + * allowing a hole to be left in the corefile to save disk space. * * Called without mmap_lock (takes and releases the mmap_lock by itself). */ diff --git a/mm/highmem.c b/mm/highmem.c index e389337e00b4..4fb51d735aa6 100644 --- a/mm/highmem.c +++ b/mm/highmem.c @@ -519,7 +519,7 @@ void *__kmap_local_pfn_prot(unsigned long pfn, pgprot_t prot) /* * Disable migration so resulting virtual address is stable - * accross preemption. + * across preemption. */ migrate_disable(); preempt_disable(); diff --git a/mm/huge_memory.c b/mm/huge_memory.c index 98456017744d..63ed6b25deaa 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -1792,8 +1792,8 @@ bool move_huge_pmd(struct vm_area_struct *vma, unsigned long old_addr, /* * Returns * - 0 if PMD could not be locked - * - 1 if PMD was locked but protections unchange and TLB flush unnecessary - * - HPAGE_PMD_NR is protections changed and TLB flush necessary + * - 1 if PMD was locked but protections unchanged and TLB flush unnecessary + * - HPAGE_PMD_NR if protections changed and TLB flush necessary */ int change_huge_pmd(struct vm_area_struct *vma, pmd_t *pmd, unsigned long addr, pgprot_t newprot, unsigned long cp_flags) @@ -2469,7 +2469,7 @@ static void __split_huge_page(struct page *page, struct list_head *list, xa_lock(&swap_cache->i_pages); } - /* lock lru list/PageCompound, ref freezed by page_ref_freeze */ + /* lock lru list/PageCompound, ref frozen by page_ref_freeze */ lruvec = lock_page_lruvec(head); for (i = nr - 1; i >= 1; i--) { diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 629aa4c2259c..3db405dea3dc 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -466,7 +466,7 @@ static int allocate_file_region_entries(struct resv_map *resv, resv->region_cache_count; /* At this point, we should have enough entries in the cache - * for all the existings adds_in_progress. We should only be + * for all the existing adds_in_progress. We should only be * needing to allocate for regions_needed. */ VM_BUG_ON(resv->region_cache_count < resv->adds_in_progress); @@ -5536,8 +5536,8 @@ void adjust_range_if_pmd_sharing_possible(struct vm_area_struct *vma, v_end = ALIGN_DOWN(vma->vm_end, PUD_SIZE); /* - * vma need span at least one aligned PUD size and the start,end range - * must at least partialy within it. + * vma needs to span at least one aligned PUD size, and the range + * must be at least partially within in. */ if (!(vma->vm_flags & VM_MAYSHARE) || !(v_end > v_start) || (*end <= v_start) || (*start >= v_end)) diff --git a/mm/internal.h b/mm/internal.h index feeaaf06705d..54bd0dc2c23c 100644 --- a/mm/internal.h +++ b/mm/internal.h @@ -334,7 +334,7 @@ static inline bool is_exec_mapping(vm_flags_t flags) } /* - * Stack area - atomatically grows in one direction + * Stack area - automatically grows in one direction * * VM_GROWSUP / VM_GROWSDOWN VMAs are always private anonymous: * do_mmap() forbids all other combinations. diff --git a/mm/kasan/kasan.h b/mm/kasan/kasan.h index 3820ca54743b..8f450bc28045 100644 --- a/mm/kasan/kasan.h +++ b/mm/kasan/kasan.h @@ -55,9 +55,9 @@ extern bool kasan_flag_async __ro_after_init; #define KASAN_TAG_MAX 0xFD /* maximum value for random tags */ #ifdef CONFIG_KASAN_HW_TAGS -#define KASAN_TAG_MIN 0xF0 /* mimimum value for random tags */ +#define KASAN_TAG_MIN 0xF0 /* minimum value for random tags */ #else -#define KASAN_TAG_MIN 0x00 /* mimimum value for random tags */ +#define KASAN_TAG_MIN 0x00 /* minimum value for random tags */ #endif #ifdef CONFIG_KASAN_GENERIC @@ -403,7 +403,7 @@ static inline bool kasan_byte_accessible(const void *addr) #else /* CONFIG_KASAN_HW_TAGS */ /** - * kasan_poison - mark the memory range as unaccessible + * kasan_poison - mark the memory range as inaccessible * @addr - range start address, must be aligned to KASAN_GRANULE_SIZE * @size - range size, must be aligned to KASAN_GRANULE_SIZE * @value - value that's written to metadata for the range @@ -434,7 +434,7 @@ bool kasan_byte_accessible(const void *addr); /** * kasan_poison_last_granule - mark the last granule of the memory range as - * unaccessible + * inaccessible * @addr - range start address, must be aligned to KASAN_GRANULE_SIZE * @size - range size * diff --git a/mm/kasan/quarantine.c b/mm/kasan/quarantine.c index 728fb24c5683..d8ccff4c1275 100644 --- a/mm/kasan/quarantine.c +++ b/mm/kasan/quarantine.c @@ -27,7 +27,7 @@ /* Data structure and operations for quarantine queues. */ /* - * Each queue is a signle-linked list, which also stores the total size of + * Each queue is a single-linked list, which also stores the total size of * objects inside of it. */ struct qlist_head { @@ -138,7 +138,7 @@ static void qlink_free(struct qlist_node *qlink, struct kmem_cache *cache) local_irq_save(flags); /* - * As the object now gets freed from the quaratine, assume that its + * As the object now gets freed from the quarantine, assume that its * free track is no longer valid. */ *(u8 *)kasan_mem_to_shadow(object) = KASAN_KMALLOC_FREE; diff --git a/mm/kasan/shadow.c b/mm/kasan/shadow.c index 727ad4629173..082ee5b6d9a1 100644 --- a/mm/kasan/shadow.c +++ b/mm/kasan/shadow.c @@ -316,7 +316,7 @@ int kasan_populate_vmalloc(unsigned long addr, unsigned long size) * // rest of vmalloc process <data dependency> * STORE p, a LOAD shadow(x+99) * - * If there is no barrier between the end of unpoisioning the shadow + * If there is no barrier between the end of unpoisoning the shadow * and the store of the result to p, the stores could be committed * in a different order by CPU#0, and CPU#1 could erroneously observe * poison in the shadow. @@ -384,7 +384,7 @@ static int kasan_depopulate_vmalloc_pte(pte_t *ptep, unsigned long addr, * How does this work? * ------------------- * - * We have a region that is page aligned, labelled as A. + * We have a region that is page aligned, labeled as A. * That might not map onto the shadow in a way that is page-aligned: * * start end diff --git a/mm/kfence/report.c b/mm/kfence/report.c index e3f71451ad9e..2a319c21c939 100644 --- a/mm/kfence/report.c +++ b/mm/kfence/report.c @@ -263,6 +263,6 @@ void kfence_report_error(unsigned long address, bool is_write, struct pt_regs *r if (panic_on_warn) panic("panic_on_warn set ...\n"); - /* We encountered a memory unsafety error, taint the kernel! */ + /* We encountered a memory safety error, taint the kernel! */ add_taint(TAINT_BAD_PAGE, LOCKDEP_STILL_OK); } diff --git a/mm/khugepaged.c b/mm/khugepaged.c index ea74da3232ab..6c0185fdd815 100644 --- a/mm/khugepaged.c +++ b/mm/khugepaged.c @@ -667,7 +667,7 @@ static int __collapse_huge_page_isolate(struct vm_area_struct *vma, * * The page table that maps the page has been already unlinked * from the page table tree and this process cannot get - * an additinal pin on the page. + * an additional pin on the page. * * New pins can come later if the page is shared across fork, * but not from this process. The other process cannot write to @@ -459,7 +459,7 @@ static inline bool ksm_test_exit(struct mm_struct *mm) * but taking great care only to touch a ksm page, in a VM_MERGEABLE vma, * in case the application has unmapped and remapped mm,addr meanwhile. * Could a ksm page appear anywhere else? Actually yes, in a VM_PFNMAP - * mmap of /dev/mem or /dev/kmem, where we would not want to touch it. + * mmap of /dev/mem, where we would not want to touch it. * * FAULT_FLAG/FOLL_REMOTE are because we do this outside the context * of the process that owns 'vma'. We also do not want to enforce @@ -1065,7 +1065,7 @@ static int write_protect_page(struct vm_area_struct *vma, struct page *page, /* * Ok this is tricky, when get_user_pages_fast() run it doesn't * take any lock, therefore the check that we are going to make - * with the pagecount against the mapcount is racey and + * with the pagecount against the mapcount is racy and * O_DIRECT can happen right after the check. * So we clear the pte and flush the tlb before the check * this assure us that no O_DIRECT can happen after the check @@ -1435,7 +1435,7 @@ static struct page *stable_node_dup(struct stable_node **_stable_node_dup, */ *_stable_node = found; /* - * Just for robustneess as stable_node is + * Just for robustness, as stable_node is * otherwise left as a stable pointer, the * compiler shall optimize it away at build * time. diff --git a/mm/madvise.c b/mm/madvise.c index 01fef79ac761..63e489e5bfdb 100644 --- a/mm/madvise.c +++ b/mm/madvise.c @@ -799,7 +799,7 @@ static long madvise_dontneed_free(struct vm_area_struct *vma, if (end > vma->vm_end) { /* * Don't fail if end > vma->vm_end. If the old - * vma was splitted while the mmap_lock was + * vma was split while the mmap_lock was * released the effect of the concurrent * operation may not cause madvise() to * have an undefined result. There may be an @@ -1039,7 +1039,7 @@ process_madvise_behavior_valid(int behavior) * MADV_DODUMP - cancel MADV_DONTDUMP: no longer exclude from core dump. * MADV_COLD - the application is not expected to use this memory soon, * deactivate pages in this range so that they can be reclaimed - * easily if memory pressure hanppens. + * easily if memory pressure happens. * MADV_PAGEOUT - the application is not expected to use this memory soon, * page out the pages in this range immediately. * diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 3004afb6d090..64ada9e650a5 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -215,7 +215,7 @@ enum res_type { #define MEMFILE_PRIVATE(x, val) ((x) << 16 | (val)) #define MEMFILE_TYPE(val) ((val) >> 16 & 0xffff) #define MEMFILE_ATTR(val) ((val) & 0xffff) -/* Used for OOM nofiier */ +/* Used for OOM notifier */ #define OOM_CONTROL (0) /* @@ -786,7 +786,7 @@ void __mod_lruvec_kmem_state(void *p, enum node_stat_item idx, int val) * __count_memcg_events - account VM events in a cgroup * @memcg: the memory cgroup * @idx: the event item - * @count: the number of events that occured + * @count: the number of events that occurred */ void __count_memcg_events(struct mem_cgroup *memcg, enum vm_event_item idx, unsigned long count) @@ -904,7 +904,7 @@ struct mem_cgroup *get_mem_cgroup_from_mm(struct mm_struct *mm) rcu_read_lock(); do { /* - * Page cache insertions can happen withou an + * Page cache insertions can happen without an * actual mm context, e.g. during disk probing * on boot, loopback IO, acct() writes etc. */ @@ -1712,7 +1712,7 @@ static void mem_cgroup_unmark_under_oom(struct mem_cgroup *memcg) struct mem_cgroup *iter; /* - * Be careful about under_oom underflows becase a child memcg + * Be careful about under_oom underflows because a child memcg * could have been added after mem_cgroup_mark_under_oom. */ spin_lock(&memcg_oom_lock); @@ -1884,7 +1884,7 @@ bool mem_cgroup_oom_synchronize(bool handle) /* * There is no guarantee that an OOM-lock contender * sees the wakeups triggered by the OOM kill - * uncharges. Wake any sleepers explicitely. + * uncharges. Wake any sleepers explicitly. */ memcg_oom_recover(memcg); } @@ -4364,7 +4364,7 @@ void mem_cgroup_wb_stats(struct bdi_writeback *wb, unsigned long *pfilepages, * Foreign dirty flushing * * There's an inherent mismatch between memcg and writeback. The former - * trackes ownership per-page while the latter per-inode. This was a + * tracks ownership per-page while the latter per-inode. This was a * deliberate design decision because honoring per-page ownership in the * writeback path is complicated, may lead to higher CPU and IO overheads * and deemed unnecessary given that write-sharing an inode across @@ -4379,9 +4379,9 @@ void mem_cgroup_wb_stats(struct bdi_writeback *wb, unsigned long *pfilepages, * triggering background writeback. A will be slowed down without a way to * make writeback of the dirty pages happen. * - * Conditions like the above can lead to a cgroup getting repatedly and + * Conditions like the above can lead to a cgroup getting repeatedly and * severely throttled after making some progress after each - * dirty_expire_interval while the underyling IO device is almost + * dirty_expire_interval while the underlying IO device is almost * completely idle. * * Solving this problem completely requires matching the ownership tracking @@ -5774,7 +5774,7 @@ static int mem_cgroup_can_attach(struct cgroup_taskset *tset) return 0; /* - * We are now commited to this value whatever it is. Changes in this + * We are now committed to this value whatever it is. Changes in this * tunable will only affect upcoming migrations, not the current one. * So we need to save it, and keep it going. */ diff --git a/mm/memory-failure.c b/mm/memory-failure.c index bd3945446d47..85ad98c00fd9 100644 --- a/mm/memory-failure.c +++ b/mm/memory-failure.c @@ -75,7 +75,7 @@ static bool page_handle_poison(struct page *page, bool hugepage_or_freepage, boo if (dissolve_free_huge_page(page) || !take_page_off_buddy(page)) /* * We could fail to take off the target page from buddy - * for example due to racy page allocaiton, but that's + * for example due to racy page allocation, but that's * acceptable because soft-offlined page is not broken * and if someone really want to use it, they should * take it. diff --git a/mm/memory.c b/mm/memory.c index cbdc2cd9cedb..730daa00952b 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -3339,7 +3339,7 @@ vm_fault_t do_swap_page(struct vm_fault *vmf) } - delayacct_set_flag(DELAYACCT_PF_SWAPIN); + delayacct_set_flag(current, DELAYACCT_PF_SWAPIN); page = lookup_swap_cache(entry, vma, vmf->address); swapcache = page; @@ -3388,7 +3388,7 @@ vm_fault_t do_swap_page(struct vm_fault *vmf) vmf->address, &vmf->ptl); if (likely(pte_same(*vmf->pte, vmf->orig_pte))) ret = VM_FAULT_OOM; - delayacct_clear_flag(DELAYACCT_PF_SWAPIN); + delayacct_clear_flag(current, DELAYACCT_PF_SWAPIN); goto unlock; } @@ -3402,13 +3402,13 @@ vm_fault_t do_swap_page(struct vm_fault *vmf) * owner processes (which may be unknown at hwpoison time) */ ret = VM_FAULT_HWPOISON; - delayacct_clear_flag(DELAYACCT_PF_SWAPIN); + delayacct_clear_flag(current, DELAYACCT_PF_SWAPIN); goto out_release; } locked = lock_page_or_retry(page, vma->vm_mm, vmf->flags); - delayacct_clear_flag(DELAYACCT_PF_SWAPIN); + delayacct_clear_flag(current, DELAYACCT_PF_SWAPIN); if (!locked) { ret |= VM_FAULT_RETRY; goto out_release; @@ -3727,7 +3727,7 @@ vm_fault_t do_set_pmd(struct vm_fault *vmf, struct page *page) return ret; /* - * Archs like ppc64 need additonal space to store information + * Archs like ppc64 need additional space to store information * related to pte entry. Use the preallocated table for that. */ if (arch_needs_pgtable_deposit() && !vmf->prealloc_pte) { @@ -4503,7 +4503,7 @@ retry_pud: } /** - * mm_account_fault - Do page fault accountings + * mm_account_fault - Do page fault accounting * * @regs: the pt_regs struct pointer. When set to NULL, will skip accounting * of perf event counters, but we'll still do the per-task accounting to @@ -4512,9 +4512,9 @@ retry_pud: * @flags: the fault flags. * @ret: the fault retcode. * - * This will take care of most of the page fault accountings. Meanwhile, it + * This will take care of most of the page fault accounting. Meanwhile, it * will also include the PERF_COUNT_SW_PAGE_FAULTS_[MAJ|MIN] perf counter - * updates. However note that the handling of PERF_COUNT_SW_PAGE_FAULTS should + * updates. However, note that the handling of PERF_COUNT_SW_PAGE_FAULTS should * still be in per-arch page fault handlers at the entry of page fault. */ static inline void mm_account_fault(struct pt_regs *regs, @@ -4848,7 +4848,7 @@ out: /** * generic_access_phys - generic implementation for iomem mmap access * @vma: the vma to access - * @addr: userspace addres, not relative offset within @vma + * @addr: userspace address, not relative offset within @vma * @buf: buffer to read/write * @len: length of transfer * @write: set to FOLL_WRITE when writing, otherwise reading diff --git a/mm/mempolicy.c b/mm/mempolicy.c index 3ebe2cfc64af..d79fa299b70c 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -994,7 +994,7 @@ static long do_get_mempolicy(int *policy, nodemask_t *nmask, if (flags & MPOL_F_ADDR) { /* * Take a refcount on the mpol, lookup_node() - * wil drop the mmap_lock, so after calling + * will drop the mmap_lock, so after calling * lookup_node() only "pol" remains valid, "vma" * is stale. */ @@ -1867,7 +1867,7 @@ static int apply_policy_zone(struct mempolicy *policy, enum zone_type zone) * we apply policy when gfp_zone(gfp) = ZONE_MOVABLE only. * * policy->v.nodes is intersect with node_states[N_MEMORY]. - * so if the following test faile, it implies + * so if the following test fails, it implies * policy->v.nodes has movable memory only. */ if (!nodes_intersects(policy->v.nodes, node_states[N_HIGH_MEMORY])) @@ -2098,7 +2098,7 @@ bool init_nodemask_of_mempolicy(nodemask_t *mask) * * If tsk's mempolicy is "default" [NULL], return 'true' to indicate default * policy. Otherwise, check for intersection between mask and the policy - * nodemask for 'bind' or 'interleave' policy. For 'perferred' or 'local' + * nodemask for 'bind' or 'interleave' policy. For 'preferred' or 'local' * policy, always return true since it may allocate elsewhere on fallback. * * Takes task_lock(tsk) to prevent freeing of its mempolicy. diff --git a/mm/migrate.c b/mm/migrate.c index 6b37d00890ca..b234c3f3acb7 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -2779,11 +2779,11 @@ restore: * * For empty entries inside CPU page table (pte_none() or pmd_none() is true) we * do set MIGRATE_PFN_MIGRATE flag inside the corresponding source array thus - * allowing the caller to allocate device memory for those unback virtual - * address. For this the caller simply has to allocate device memory and + * allowing the caller to allocate device memory for those unbacked virtual + * addresses. For this the caller simply has to allocate device memory and * properly set the destination entry like for regular migration. Note that - * this can still fails and thus inside the device driver must check if the - * migration was successful for those entries after calling migrate_vma_pages() + * this can still fail, and thus inside the device driver you must check if the + * migration was successful for those entries after calling migrate_vma_pages(), * just like for regular migration. * * After that, the callers must call migrate_vma_pages() to go over each entry diff --git a/mm/mmap.c b/mm/mmap.c index c1b848fa7da6..0584e540246e 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -612,7 +612,7 @@ static unsigned long count_vma_pages_range(struct mm_struct *mm, unsigned long nr_pages = 0; struct vm_area_struct *vma; - /* Find first overlaping mapping */ + /* Find first overlapping mapping */ vma = find_vma_intersection(mm, addr, end); if (!vma) return 0; @@ -2875,7 +2875,7 @@ int __do_munmap(struct mm_struct *mm, unsigned long start, size_t len, if (unlikely(uf)) { /* * If userfaultfd_unmap_prep returns an error the vmas - * will remain splitted, but userland will get a + * will remain split, but userland will get a * highly unexpected error anyway. This is no * different than the case where the first of the two * __split_vma fails, but we don't undo the first diff --git a/mm/mprotect.c b/mm/mprotect.c index 94188df1ee55..e7a443157988 100644 --- a/mm/mprotect.c +++ b/mm/mprotect.c @@ -699,7 +699,7 @@ SYSCALL_DEFINE1(pkey_free, int, pkey) mmap_write_unlock(current->mm); /* - * We could provie warnings or errors if any VMA still + * We could provide warnings or errors if any VMA still * has the pkey set here. */ return ret; diff --git a/mm/mremap.c b/mm/mremap.c index d22629ff8f3c..47c255b60150 100644 --- a/mm/mremap.c +++ b/mm/mremap.c @@ -730,7 +730,7 @@ static unsigned long mremap_to(unsigned long addr, unsigned long old_len, * So, to avoid such scenario we can pre-compute if the whole * operation has high chances to success map-wise. * Worst-scenario case is when both vma's (new_addr and old_addr) get - * split in 3 before unmaping it. + * split in 3 before unmapping it. * That means 2 more maps (1 for each) to the ones we already hold. * Check whether current map count plus 2 still leads us to 4 maps below * the threshold, otherwise return -ENOMEM here to be more safe. diff --git a/mm/nommu.c b/mm/nommu.c index 5c9ab799c0e6..85a3a68dffb6 100644 --- a/mm/nommu.c +++ b/mm/nommu.c @@ -210,16 +210,6 @@ long vread(char *buf, char *addr, unsigned long count) return count; } -long vwrite(char *buf, char *addr, unsigned long count) -{ - /* Don't allow overflow */ - if ((unsigned long) addr + count < count) - count = -(unsigned long) addr; - - memcpy(addr, buf, count); - return count; -} - /* * vmalloc - allocate virtually contiguous memory * diff --git a/mm/oom_kill.c b/mm/oom_kill.c index 3df2ac6b8686..eefd3f5fde46 100644 --- a/mm/oom_kill.c +++ b/mm/oom_kill.c @@ -74,7 +74,7 @@ static inline bool is_memcg_oom(struct oom_control *oc) #ifdef CONFIG_NUMA /** - * oom_cpuset_eligible() - check task eligiblity for kill + * oom_cpuset_eligible() - check task eligibility for kill * @start: task struct of which task to consider * @oc: pointer to struct oom_control * diff --git a/mm/page-writeback.c b/mm/page-writeback.c index 5e761fb62800..0062d5c57d41 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -1806,7 +1806,7 @@ pause: break; /* - * In the case of an unresponding NFS server and the NFS dirty + * In the case of an unresponsive NFS server and the NFS dirty * pages exceeds dirty_thresh, give the other good wb's a pipe * to go through, so that tasks on them still remain responsive. * @@ -2216,7 +2216,7 @@ int write_cache_pages(struct address_space *mapping, * Page truncated or invalidated. We can freely skip it * then, even for data integrity operations: the page * has disappeared concurrently, so there could be no - * real expectation of this data interity operation + * real expectation of this data integrity operation * even if there is now a new, dirty page at the same * pagecache address. */ diff --git a/mm/page_alloc.c b/mm/page_alloc.c index bcdc0c6f21f1..aaa1655cf682 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -893,7 +893,7 @@ compaction_capture(struct capture_control *capc, struct page *page, return false; /* - * Do not let lower order allocations polluate a movable pageblock. + * Do not let lower order allocations pollute a movable pageblock. * This might let an unmovable request use a reclaimable pageblock * and vice-versa but no more than normal fallback logic which can * have trouble finding a high-order free page. @@ -2776,7 +2776,7 @@ static bool unreserve_highatomic_pageblock(const struct alloc_context *ac, /* * In page freeing path, migratetype change is racy so * we can counter several free pages in a pageblock - * in this loop althoug we changed the pageblock type + * in this loop although we changed the pageblock type * from highatomic to ac->migratetype. So we should * adjust the count once. */ @@ -3080,7 +3080,7 @@ static void drain_local_pages_wq(struct work_struct *work) * drain_all_pages doesn't use proper cpu hotplug protection so * we can race with cpu offline when the WQ can move this from * a cpu pinned worker to an unbound one. We can operate on a different - * cpu which is allright but we also have to make sure to not move to + * cpu which is alright but we also have to make sure to not move to * a different one. */ preempt_disable(); @@ -4173,7 +4173,7 @@ out: } /* - * Maximum number of compaction retries wit a progress before OOM + * Maximum number of compaction retries with a progress before OOM * killer is consider as the only way to move forward. */ #define MAX_COMPACT_RETRIES 16 @@ -5929,7 +5929,7 @@ static int build_zonerefs_node(pg_data_t *pgdat, struct zoneref *zonerefs) static int __parse_numa_zonelist_order(char *s) { /* - * We used to support different zonlists modes but they turned + * We used to support different zonelists modes but they turned * out to be just not useful. Let's keep the warning in place * if somebody still use the cmd line parameter so that we do * not fail it silently @@ -7670,7 +7670,7 @@ static void check_for_memory(pg_data_t *pgdat, int nid) } /* - * Some architecturs, e.g. ARC may have ZONE_HIGHMEM below ZONE_NORMAL. For + * Some architectures, e.g. ARC may have ZONE_HIGHMEM below ZONE_NORMAL. For * such cases we allow max_zone_pfn sorted in the descending order */ bool __weak arch_has_descending_max_zone_pfns(void) @@ -8728,7 +8728,7 @@ static int __alloc_contig_migrate_range(struct compact_control *cc, * alloc_contig_range() -- tries to allocate given range of pages * @start: start PFN to allocate * @end: one-past-the-last PFN to allocate - * @migratetype: migratetype of the underlaying pageblocks (either + * @migratetype: migratetype of the underlying pageblocks (either * #MIGRATE_MOVABLE or #MIGRATE_CMA). All pageblocks * in range must have the same migratetype and it must * be either of the two. @@ -8988,7 +8988,7 @@ EXPORT_SYMBOL(free_contig_range); /* * The zone indicated has a new number of managed_pages; batch sizes and percpu - * page high values need to be recalulated. + * page high values need to be recalculated. */ void __meminit zone_pcp_update(struct zone *zone) { diff --git a/mm/page_owner.c b/mm/page_owner.c index 9661d5320a07..adfabb560eb9 100644 --- a/mm/page_owner.c +++ b/mm/page_owner.c @@ -233,7 +233,7 @@ void __copy_page_owner(struct page *oldpage, struct page *newpage) /* * We don't clear the bit on the oldpage as it's going to be freed * after migration. Until then, the info can be useful in case of - * a bug, and the overal stats will be off a bit only temporarily. + * a bug, and the overall stats will be off a bit only temporarily. * Also, migrate_misplaced_transhuge_page() can still fail the * migration and then we want the oldpage to retain the info. But * in that case we also don't need to explicitly clear the info from diff --git a/mm/page_vma_mapped.c b/mm/page_vma_mapped.c index 86e3a3688d59..2cf01d933f13 100644 --- a/mm/page_vma_mapped.c +++ b/mm/page_vma_mapped.c @@ -134,7 +134,7 @@ static bool check_pte(struct page_vma_mapped_walk *pvmw) * regardless of which page table level the page is mapped at. @pvmw->pmd is * NULL. * - * Retruns false if there are no more page table entries for the page in + * Returns false if there are no more page table entries for the page in * the vma. @pvmw->ptl is unlocked and @pvmw->pte is unmapped. * * If you need to stop the walk before page_vma_mapped_walk() returned false, diff --git a/mm/percpu-internal.h b/mm/percpu-internal.h index 095d7eaa0db4..ae26b118e246 100644 --- a/mm/percpu-internal.h +++ b/mm/percpu-internal.h @@ -170,7 +170,7 @@ struct percpu_stats { u64 nr_max_alloc; /* max # of live allocations */ u32 nr_chunks; /* current # of live chunks */ u32 nr_max_chunks; /* max # of live chunks */ - size_t min_alloc_size; /* min allocaiton size */ + size_t min_alloc_size; /* min allocation size */ size_t max_alloc_size; /* max allocation size */ }; diff --git a/mm/percpu.c b/mm/percpu.c index 23308113a5ff..f99e9306b939 100644 --- a/mm/percpu.c +++ b/mm/percpu.c @@ -1862,7 +1862,7 @@ fail: pr_info("limit reached, disable warning\n"); } if (is_atomic) { - /* see the flag handling in pcpu_blance_workfn() */ + /* see the flag handling in pcpu_balance_workfn() */ pcpu_atomic_alloc_failed = true; pcpu_schedule_balance_work(); } else { diff --git a/mm/pgalloc-track.h b/mm/pgalloc-track.h index 1dcc865029a2..e9e879de8649 100644 --- a/mm/pgalloc-track.h +++ b/mm/pgalloc-track.h @@ -1,6 +1,6 @@ /* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _LINUX_PGALLLC_TRACK_H -#define _LINUX_PGALLLC_TRACK_H +#ifndef _LINUX_PGALLOC_TRACK_H +#define _LINUX_PGALLOC_TRACK_H #if defined(CONFIG_MMU) static inline p4d_t *p4d_alloc_track(struct mm_struct *mm, pgd_t *pgd, @@ -48,4 +48,4 @@ static inline pmd_t *pmd_alloc_track(struct mm_struct *mm, pud_t *pud, (__pte_alloc_kernel(pmd) || ({*(mask)|=PGTBL_PMD_MODIFIED;0;})))?\ NULL: pte_offset_kernel(pmd, address)) -#endif /* _LINUX_PGALLLC_TRACK_H */ +#endif /* _LINUX_PGALLOC_TRACK_H */ diff --git a/mm/rmap.c b/mm/rmap.c index b0fc27e77d6d..693a610e181d 100644 --- a/mm/rmap.c +++ b/mm/rmap.c @@ -257,7 +257,7 @@ static inline void unlock_anon_vma_root(struct anon_vma *root) * Attach the anon_vmas from src to dst. * Returns 0 on success, -ENOMEM on failure. * - * anon_vma_clone() is called by __vma_split(), __split_vma(), copy_vma() and + * anon_vma_clone() is called by __vma_adjust(), __split_vma(), copy_vma() and * anon_vma_fork(). The first three want an exact copy of src, while the last * one, anon_vma_fork(), may try to reuse an existing anon_vma to prevent * endless growth of anon_vma. Since dst->anon_vma is set to NULL before call, diff --git a/mm/slab.c b/mm/slab.c index df45c437b394..d0f725637663 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -259,7 +259,7 @@ static void kmem_cache_node_init(struct kmem_cache_node *parent) #define BATCHREFILL_LIMIT 16 /* - * Optimization question: fewer reaps means less probability for unnessary + * Optimization question: fewer reaps means less probability for unnecessary * cpucache drain/refill cycles. * * OTOH the cpuarrays can contain lots of objects, @@ -2284,7 +2284,7 @@ void __kmem_cache_release(struct kmem_cache *cachep) * Because if it is the case, that means we defer the creation of * the kmalloc_{dma,}_cache of size sizeof(slab descriptor) to this point. * And we eventually call down to __kmem_cache_create(), which - * in turn looks up in the kmalloc_{dma,}_caches for the disired-size one. + * in turn looks up in the kmalloc_{dma,}_caches for the desired-size one. * This is a "chicken-and-egg" problem. * * So the off-slab slab descriptor shall come from the kmalloc_{dma,}_caches, @@ -2381,8 +2381,8 @@ union freelist_init_state { }; /* - * Initialize the state based on the randomization methode available. - * return true if the pre-computed list is available, false otherwize. + * Initialize the state based on the randomization method available. + * return true if the pre-computed list is available, false otherwise. */ static bool freelist_state_initialize(union freelist_init_state *state, struct kmem_cache *cachep, diff --git a/mm/slub.c b/mm/slub.c index 68123b21e65f..feda53ae62ba 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -3391,7 +3391,7 @@ EXPORT_SYMBOL(kmem_cache_alloc_bulk); */ /* - * Mininum / Maximum order of slab pages. This influences locking overhead + * Minimum / Maximum order of slab pages. This influences locking overhead * and slab fragmentation. A higher order reduces the number of partial slabs * and increases the number of allocations possible without having to * take the list_lock. diff --git a/mm/swap.c b/mm/swap.c index a75a8265302b..dfb48cf9c2c9 100644 --- a/mm/swap.c +++ b/mm/swap.c @@ -496,7 +496,7 @@ void lru_cache_add_inactive_or_unevictable(struct page *page, if (unlikely(unevictable) && !TestSetPageMlocked(page)) { int nr_pages = thp_nr_pages(page); /* - * We use the irq-unsafe __mod_zone_page_stat because this + * We use the irq-unsafe __mod_zone_page_state because this * counter is not modified from interrupt context, and the pte * lock is held(spinlock), which implies preemption disabled. */ @@ -808,7 +808,7 @@ inline void __lru_add_drain_all(bool force_all_cpus) * below which drains the page vectors. * * Let x, y, and z represent some system CPU numbers, where x < y < z. - * Assume CPU #z is is in the middle of the for_each_online_cpu loop + * Assume CPU #z is in the middle of the for_each_online_cpu loop * below and has already reached CPU #y's per-cpu data. CPU #x comes * along, adds some pages to its per-cpu vectors, then calls * lru_add_drain_all(). diff --git a/mm/swap_slots.c b/mm/swap_slots.c index be9de6d5b516..6248d1030a9b 100644 --- a/mm/swap_slots.c +++ b/mm/swap_slots.c @@ -16,7 +16,7 @@ * to local caches without needing to acquire swap_info * lock. We do not reuse the returned slots directly but * move them back to the global pool in a batch. This - * allows the slots to coaellesce and reduce fragmentation. + * allows the slots to coalesce and reduce fragmentation. * * The swap entry allocated is marked with SWAP_HAS_CACHE * flag in map_count that prevents it from being allocated diff --git a/mm/swap_state.c b/mm/swap_state.c index 3a1259c13f3b..272ea2108c9d 100644 --- a/mm/swap_state.c +++ b/mm/swap_state.c @@ -792,7 +792,7 @@ static void swap_ra_info(struct vm_fault *vmf, * * Returns the struct page for entry and addr, after queueing swapin. * - * Primitive swap readahead code. We simply read in a few pages whoes + * Primitive swap readahead code. We simply read in a few pages whose * virtual addresses are around the fault address in the same vma. * * Caller must hold read mmap_lock if vmf->vma is not NULL. diff --git a/mm/vmalloc.c b/mm/vmalloc.c index 9c539f0730a5..a13ac524f6ff 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c @@ -1583,7 +1583,7 @@ static unsigned long lazy_max_pages(void) static atomic_long_t vmap_lazy_nr = ATOMIC_LONG_INIT(0); /* - * Serialize vmap purging. There is no actual criticial section protected + * Serialize vmap purging. There is no actual critical section protected * by this look, but we want to avoid concurrent calls for performance * reasons and to make the pcpu_get_vm_areas more deterministic. */ @@ -2628,7 +2628,7 @@ static void __vfree(const void *addr) * May sleep if called *not* from interrupt context. * Must not be called in NMI context (strictly speaking, it could be * if we have CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG, but making the calling - * conventions for vfree() arch-depenedent would be a really bad idea). + * conventions for vfree() arch-dependent would be a really bad idea). */ void vfree(const void *addr) { @@ -3141,15 +3141,12 @@ static int aligned_vread(char *buf, char *addr, unsigned long count) /* * To do safe access to this _mapped_ area, we need * lock. But adding lock here means that we need to add - * overhead of vmalloc()/vfree() calles for this _debug_ + * overhead of vmalloc()/vfree() calls for this _debug_ * interface, rarely used. Instead of that, we'll use * kmap() and get small overhead in this access function. */ if (p) { - /* - * we can expect USER0 is not used (see vread/vwrite's - * function description) - */ + /* We can expect USER0 is not used -- see vread() */ void *map = kmap_atomic(p); memcpy(buf, map + offset, length); kunmap_atomic(map); @@ -3164,43 +3161,6 @@ static int aligned_vread(char *buf, char *addr, unsigned long count) return copied; } -static int aligned_vwrite(char *buf, char *addr, unsigned long count) -{ - struct page *p; - int copied = 0; - - while (count) { - unsigned long offset, length; - - offset = offset_in_page(addr); - length = PAGE_SIZE - offset; - if (length > count) - length = count; - p = vmalloc_to_page(addr); - /* - * To do safe access to this _mapped_ area, we need - * lock. But adding lock here means that we need to add - * overhead of vmalloc()/vfree() calles for this _debug_ - * interface, rarely used. Instead of that, we'll use - * kmap() and get small overhead in this access function. - */ - if (p) { - /* - * we can expect USER0 is not used (see vread/vwrite's - * function description) - */ - void *map = kmap_atomic(p); - memcpy(map + offset, buf, length); - kunmap_atomic(map); - } - addr += length; - buf += length; - copied += length; - count -= length; - } - return copied; -} - /** * vread() - read vmalloc area in a safe way. * @buf: buffer for reading data @@ -3219,7 +3179,7 @@ static int aligned_vwrite(char *buf, char *addr, unsigned long count) * Note: In usual ops, vread() is never necessary because the caller * should know vmalloc() area is valid and can use memcpy(). * This is for routines which have to access vmalloc area without - * any information, as /dev/kmem. + * any information, as /proc/kcore. * * Return: number of bytes for which addr and buf should be increased * (same number as @count) or %0 if [addr...addr+count) doesn't @@ -3284,80 +3244,6 @@ finished: } /** - * vwrite() - write vmalloc area in a safe way. - * @buf: buffer for source data - * @addr: vm address. - * @count: number of bytes to be read. - * - * This function checks that addr is a valid vmalloc'ed area, and - * copy data from a buffer to the given addr. If specified range of - * [addr...addr+count) includes some valid address, data is copied from - * proper area of @buf. If there are memory holes, no copy to hole. - * IOREMAP area is treated as memory hole and no copy is done. - * - * If [addr...addr+count) doesn't includes any intersects with alive - * vm_struct area, returns 0. @buf should be kernel's buffer. - * - * Note: In usual ops, vwrite() is never necessary because the caller - * should know vmalloc() area is valid and can use memcpy(). - * This is for routines which have to access vmalloc area without - * any information, as /dev/kmem. - * - * Return: number of bytes for which addr and buf should be - * increased (same number as @count) or %0 if [addr...addr+count) - * doesn't include any intersection with valid vmalloc area - */ -long vwrite(char *buf, char *addr, unsigned long count) -{ - struct vmap_area *va; - struct vm_struct *vm; - char *vaddr; - unsigned long n, buflen; - int copied = 0; - - /* Don't allow overflow */ - if ((unsigned long) addr + count < count) - count = -(unsigned long) addr; - buflen = count; - - spin_lock(&vmap_area_lock); - list_for_each_entry(va, &vmap_area_list, list) { - if (!count) - break; - - if (!va->vm) - continue; - - vm = va->vm; - vaddr = (char *) vm->addr; - if (addr >= vaddr + get_vm_area_size(vm)) - continue; - while (addr < vaddr) { - if (count == 0) - goto finished; - buf++; - addr++; - count--; - } - n = vaddr + get_vm_area_size(vm) - addr; - if (n > count) - n = count; - if (!(vm->flags & VM_IOREMAP)) { - aligned_vwrite(buf, addr, n); - copied++; - } - buf += n; - addr += n; - count -= n; - } -finished: - spin_unlock(&vmap_area_lock); - if (!copied) - return 0; - return buflen; -} - -/** * remap_vmalloc_range_partial - map vmalloc pages to userspace * @vma: vma to cover * @uaddr: target user address to start at diff --git a/mm/vmstat.c b/mm/vmstat.c index 5ba118521ded..cccee36b289c 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -934,7 +934,7 @@ void cpu_vm_stats_fold(int cpu) /* * this is only called if !populated_zone(zone), which implies no other users of - * pset->vm_stat_diff[] exsist. + * pset->vm_stat_diff[] exist. */ void drain_zonestat(struct zone *zone, struct per_cpu_pageset *pset) { diff --git a/mm/z3fold.c b/mm/z3fold.c index 9d889ad2bb86..7fe7adaaad01 100644 --- a/mm/z3fold.c +++ b/mm/z3fold.c @@ -391,7 +391,7 @@ static void z3fold_unregister_migration(struct z3fold_pool *pool) { if (pool->inode) iput(pool->inode); - } +} /* Initializes the z3fold header of a newly allocated z3fold page */ static struct z3fold_header *init_z3fold_page(struct page *page, bool headless, diff --git a/mm/zpool.c b/mm/zpool.c index 5ed71207ced7..6d9ed48141e5 100644 --- a/mm/zpool.c +++ b/mm/zpool.c @@ -336,7 +336,7 @@ int zpool_shrink(struct zpool *zpool, unsigned int pages, * This may hold locks, disable interrupts, and/or preemption, * and the zpool_unmap_handle() must be called to undo those * actions. The code that uses the mapped handle should complete - * its operatons on the mapped handle memory quickly and unmap + * its operations on the mapped handle memory quickly and unmap * as soon as possible. As the implementation may use per-cpu * data, multiple handles should not be mapped concurrently on * any cpu. diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c index 58697f7a43f8..19b563bc6c48 100644 --- a/mm/zsmalloc.c +++ b/mm/zsmalloc.c @@ -61,7 +61,7 @@ #define ZSPAGE_MAGIC 0x58 /* - * This must be power of 2 and greater than of equal to sizeof(link_free). + * This must be power of 2 and greater than or equal to sizeof(link_free). * These two conditions ensure that any 'struct link_free' itself doesn't * span more than 1 page which avoids complex case of mapping 2 pages simply * to restore link_free pointer values. @@ -530,7 +530,7 @@ static void set_zspage_mapping(struct zspage *zspage, * class maintains a list of zspages where each zspage is divided * into equal sized chunks. Each allocation falls into one of these * classes depending on its size. This function returns index of the - * size class which has chunk size big enough to hold the give size. + * size class which has chunk size big enough to hold the given size. */ static int get_size_class_index(int size) { @@ -1227,7 +1227,7 @@ EXPORT_SYMBOL_GPL(zs_get_total_pages); * zs_map_object - get address of allocated object from handle. * @pool: pool from which the object was allocated * @handle: handle returned from zs_malloc - * @mm: maping mode to use + * @mm: mapping mode to use * * Before using an object allocated from zs_malloc, it must be mapped using * this function. When done with the object, it must be unmapped using diff --git a/samples/configfs/configfs_sample.c b/samples/configfs/configfs_sample.c index f9008be7a8a1..37a657b25d58 100644 --- a/samples/configfs/configfs_sample.c +++ b/samples/configfs/configfs_sample.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-or-later /* - * vim: noexpandtab ts=8 sts=0 sw=8: - * * configfs_example_macros.c - This file is a demonstration module * containing a number of configfs subsystems. It uses the helper * macros defined by configfs.h diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl index ccb412a74725..23697a6b1eaa 100755 --- a/scripts/checkpatch.pl +++ b/scripts/checkpatch.pl @@ -5829,7 +5829,7 @@ sub process { next if ($arg =~ /\.\.\./); next if ($arg =~ /^type$/i); my $tmp_stmt = $define_stmt; - $tmp_stmt =~ s/\b(sizeof|typeof|__typeof__|__builtin\w+|typecheck\s*\(\s*$Type\s*,|\#+)\s*\(*\s*$arg\s*\)*\b//g; + $tmp_stmt =~ s/\b(__must_be_array|offsetof|sizeof|sizeof_field|__stringify|typeof|__typeof__|__builtin\w+|typecheck\s*\(\s*$Type\s*,|\#+)\s*\(*\s*$arg\s*\)*\b//g; $tmp_stmt =~ s/\#+\s*$arg\b//g; $tmp_stmt =~ s/\b$arg\s*\#\#//g; my $use_cnt = () = $tmp_stmt =~ /\b$arg\b/g; @@ -7006,7 +7006,7 @@ sub process { } # check for alloc argument mismatch - if ($line =~ /\b(kcalloc|kmalloc_array)\s*\(\s*sizeof\b/) { + if ($line =~ /\b((?:devm_)?(?:kcalloc|kmalloc_array))\s*\(\s*sizeof\b/) { WARN("ALLOC_ARRAY_ARGS", "$1 uses number as first arg, sizeof is generally wrong\n" . $herecurr); } @@ -7198,6 +7198,17 @@ sub process { "Using $1 should generally have parentheses around the comparison\n" . $herecurr); } +# return sysfs_emit(foo, fmt, ...) fmt without newline + if ($line =~ /\breturn\s+sysfs_emit\s*\(\s*$FuncArg\s*,\s*($String)/ && + substr($rawline, $-[6], $+[6] - $-[6]) !~ /\\n"$/) { + my $offset = $+[6] - 1; + if (WARN("SYSFS_EMIT", + "return sysfs_emit(...) formats should include a terminating newline\n" . $herecurr) && + $fix) { + substr($fixed[$fixlinenr], $offset, 0) = '\\n'; + } + } + # nested likely/unlikely calls if ($line =~ /\b(?:(?:un)?likely)\s*\(\s*!?\s*(IS_ERR(?:_OR_NULL|_VALUE)?|WARN)/) { WARN("LIKELY_MISUSE", diff --git a/scripts/gdb/linux/cpus.py b/scripts/gdb/linux/cpus.py index 008e62f3190d..15fc4626d236 100644 --- a/scripts/gdb/linux/cpus.py +++ b/scripts/gdb/linux/cpus.py @@ -16,6 +16,9 @@ import gdb from linux import tasks, utils +task_type = utils.CachedType("struct task_struct") + + MAX_CPUS = 4096 @@ -156,6 +159,23 @@ Note that VAR has to be quoted as string.""" PerCpu() +def get_current_task(cpu): + task_ptr_type = task_type.get_type().pointer() + + if utils.is_target_arch("x86"): + var_ptr = gdb.parse_and_eval("¤t_task") + return per_cpu(var_ptr, cpu).dereference() + elif utils.is_target_arch("aarch64"): + current_task_addr = gdb.parse_and_eval("$SP_EL0") + if((current_task_addr >> 63) != 0): + current_task = current_task_addr.cast(task_ptr_type) + return current_task.dereference() + else: + raise gdb.GdbError("Sorry, obtaining the current task is not allowed " + "while running in userspace(EL0)") + else: + raise gdb.GdbError("Sorry, obtaining the current task is not yet " + "supported with this arch") class LxCurrentFunc(gdb.Function): """Return current task. @@ -167,8 +187,7 @@ number. If CPU is omitted, the CPU of the current context is used.""" super(LxCurrentFunc, self).__init__("lx_current") def invoke(self, cpu=-1): - var_ptr = gdb.parse_and_eval("¤t_task") - return per_cpu(var_ptr, cpu).dereference() + return get_current_task(cpu) LxCurrentFunc() diff --git a/scripts/gdb/linux/symbols.py b/scripts/gdb/linux/symbols.py index 1be9763cf8bb..08d264ac328b 100644 --- a/scripts/gdb/linux/symbols.py +++ b/scripts/gdb/linux/symbols.py @@ -164,7 +164,8 @@ lx-symbols command.""" saved_state['breakpoint'].enabled = saved_state['enabled'] def invoke(self, arg, from_tty): - self.module_paths = [os.path.expanduser(p) for p in arg.split()] + self.module_paths = [os.path.abspath(os.path.expanduser(p)) + for p in arg.split()] self.module_paths.append(os.getcwd()) # enforce update diff --git a/scripts/spelling.txt b/scripts/spelling.txt index 7beb4262f719..7b6a01291598 100644 --- a/scripts/spelling.txt +++ b/scripts/spelling.txt @@ -480,6 +480,7 @@ devided||divided deviece||device devision||division diable||disable +diabled||disabled dicline||decline dictionnary||dictionary didnt||didn't @@ -1027,6 +1028,8 @@ oustanding||outstanding overaall||overall overhread||overhead overlaping||overlapping +overflw||overflow +overlfow||overflow overide||override overrided||overridden overriden||overridden diff --git a/tools/include/asm-generic/bitops/find.h b/tools/include/asm-generic/bitops/find.h index 16ed1982cb34..6481fd11012a 100644 --- a/tools/include/asm-generic/bitops/find.h +++ b/tools/include/asm-generic/bitops/find.h @@ -2,6 +2,13 @@ #ifndef _TOOLS_LINUX_ASM_GENERIC_BITOPS_FIND_H_ #define _TOOLS_LINUX_ASM_GENERIC_BITOPS_FIND_H_ +extern unsigned long _find_next_bit(const unsigned long *addr1, + const unsigned long *addr2, unsigned long nbits, + unsigned long start, unsigned long invert, unsigned long le); +extern unsigned long _find_first_bit(const unsigned long *addr, unsigned long size); +extern unsigned long _find_first_zero_bit(const unsigned long *addr, unsigned long size); +extern unsigned long _find_last_bit(const unsigned long *addr, unsigned long size); + #ifndef find_next_bit /** * find_next_bit - find the next set bit in a memory region @@ -12,8 +19,22 @@ * Returns the bit number for the next set bit * If no bits are set, returns @size. */ -extern unsigned long find_next_bit(const unsigned long *addr, unsigned long - size, unsigned long offset); +static inline +unsigned long find_next_bit(const unsigned long *addr, unsigned long size, + unsigned long offset) +{ + if (small_const_nbits(size)) { + unsigned long val; + + if (unlikely(offset >= size)) + return size; + + val = *addr & GENMASK(size - 1, offset); + return val ? __ffs(val) : size; + } + + return _find_next_bit(addr, NULL, size, offset, 0UL, 0); +} #endif #ifndef find_next_and_bit @@ -27,13 +48,26 @@ extern unsigned long find_next_bit(const unsigned long *addr, unsigned long * Returns the bit number for the next set bit * If no bits are set, returns @size. */ -extern unsigned long find_next_and_bit(const unsigned long *addr1, +static inline +unsigned long find_next_and_bit(const unsigned long *addr1, const unsigned long *addr2, unsigned long size, - unsigned long offset); + unsigned long offset) +{ + if (small_const_nbits(size)) { + unsigned long val; + + if (unlikely(offset >= size)) + return size; + + val = *addr1 & *addr2 & GENMASK(size - 1, offset); + return val ? __ffs(val) : size; + } + + return _find_next_bit(addr1, addr2, size, offset, 0UL, 0); +} #endif #ifndef find_next_zero_bit - /** * find_next_zero_bit - find the next cleared bit in a memory region * @addr: The address to base the search on @@ -43,8 +77,22 @@ extern unsigned long find_next_and_bit(const unsigned long *addr1, * Returns the bit number of the next zero bit * If no bits are zero, returns @size. */ +static inline unsigned long find_next_zero_bit(const unsigned long *addr, unsigned long size, - unsigned long offset); + unsigned long offset) +{ + if (small_const_nbits(size)) { + unsigned long val; + + if (unlikely(offset >= size)) + return size; + + val = *addr | ~GENMASK(size - 1, offset); + return val == ~0UL ? size : ffz(val); + } + + return _find_next_bit(addr, NULL, size, offset, ~0UL, 0); +} #endif #ifndef find_first_bit @@ -57,8 +105,17 @@ unsigned long find_next_zero_bit(const unsigned long *addr, unsigned long size, * Returns the bit number of the first set bit. * If no bits are set, returns @size. */ -extern unsigned long find_first_bit(const unsigned long *addr, - unsigned long size); +static inline +unsigned long find_first_bit(const unsigned long *addr, unsigned long size) +{ + if (small_const_nbits(size)) { + unsigned long val = *addr & GENMASK(size - 1, 0); + + return val ? __ffs(val) : size; + } + + return _find_first_bit(addr, size); +} #endif /* find_first_bit */ @@ -72,7 +129,17 @@ extern unsigned long find_first_bit(const unsigned long *addr, * Returns the bit number of the first cleared bit. * If no bits are zero, returns @size. */ -unsigned long find_first_zero_bit(const unsigned long *addr, unsigned long size); +static inline +unsigned long find_first_zero_bit(const unsigned long *addr, unsigned long size) +{ + if (small_const_nbits(size)) { + unsigned long val = *addr | ~GENMASK(size - 1, 0); + + return val == ~0UL ? size : ffz(val); + } + + return _find_first_zero_bit(addr, size); +} #endif #endif /*_TOOLS_LINUX_ASM_GENERIC_BITOPS_FIND_H_ */ diff --git a/tools/include/asm-generic/bitsperlong.h b/tools/include/asm-generic/bitsperlong.h index 8f2283052333..2093d56ddd11 100644 --- a/tools/include/asm-generic/bitsperlong.h +++ b/tools/include/asm-generic/bitsperlong.h @@ -18,4 +18,7 @@ #define BITS_PER_LONG_LONG 64 #endif +#define small_const_nbits(nbits) \ + (__builtin_constant_p(nbits) && (nbits) <= BITS_PER_LONG && (nbits) > 0) + #endif /* __ASM_GENERIC_BITS_PER_LONG */ diff --git a/tools/include/linux/bitmap.h b/tools/include/linux/bitmap.h index 477a1cae513f..330dbf7509cc 100644 --- a/tools/include/linux/bitmap.h +++ b/tools/include/linux/bitmap.h @@ -20,17 +20,9 @@ int __bitmap_equal(const unsigned long *bitmap1, void bitmap_clear(unsigned long *map, unsigned int start, int len); #define BITMAP_FIRST_WORD_MASK(start) (~0UL << ((start) & (BITS_PER_LONG - 1))) +#define BITMAP_LAST_WORD_MASK(nbits) (~0UL >> (-(nbits) & (BITS_PER_LONG - 1))) -#define BITMAP_LAST_WORD_MASK(nbits) \ -( \ - ((nbits) % BITS_PER_LONG) ? \ - (1UL<<((nbits) % BITS_PER_LONG))-1 : ~0UL \ -) - -#define small_const_nbits(nbits) \ - (__builtin_constant_p(nbits) && (nbits) <= BITS_PER_LONG) - -static inline void bitmap_zero(unsigned long *dst, int nbits) +static inline void bitmap_zero(unsigned long *dst, unsigned int nbits) { if (small_const_nbits(nbits)) *dst = 0UL; @@ -66,7 +58,7 @@ static inline int bitmap_full(const unsigned long *src, unsigned int nbits) return find_first_zero_bit(src, nbits) == nbits; } -static inline int bitmap_weight(const unsigned long *src, int nbits) +static inline int bitmap_weight(const unsigned long *src, unsigned int nbits) { if (small_const_nbits(nbits)) return hweight_long(*src & BITMAP_LAST_WORD_MASK(nbits)); @@ -74,7 +66,7 @@ static inline int bitmap_weight(const unsigned long *src, int nbits) } static inline void bitmap_or(unsigned long *dst, const unsigned long *src1, - const unsigned long *src2, int nbits) + const unsigned long *src2, unsigned int nbits) { if (small_const_nbits(nbits)) *dst = *src1 | *src2; @@ -141,7 +133,7 @@ static inline void bitmap_free(unsigned long *bitmap) * @buf: buffer to store output * @size: size of @buf */ -size_t bitmap_scnprintf(unsigned long *bitmap, int nbits, +size_t bitmap_scnprintf(unsigned long *bitmap, unsigned int nbits, char *buf, size_t size); /** diff --git a/tools/lib/bitmap.c b/tools/lib/bitmap.c index 5043747ef6c5..f4e914712b6f 100644 --- a/tools/lib/bitmap.c +++ b/tools/lib/bitmap.c @@ -28,11 +28,11 @@ void __bitmap_or(unsigned long *dst, const unsigned long *bitmap1, dst[k] = bitmap1[k] | bitmap2[k]; } -size_t bitmap_scnprintf(unsigned long *bitmap, int nbits, +size_t bitmap_scnprintf(unsigned long *bitmap, unsigned int nbits, char *buf, size_t size) { /* current bit is 'cur', most recently seen range is [rbot, rtop] */ - int cur, rbot, rtop; + unsigned int cur, rbot, rtop; bool first = true; size_t ret = 0; diff --git a/tools/lib/find_bit.c b/tools/lib/find_bit.c index ac37022e9486..109aa7ffcf97 100644 --- a/tools/lib/find_bit.c +++ b/tools/lib/find_bit.c @@ -28,11 +28,12 @@ * searching it for one bits. * - The optional "addr2", which is anded with "addr1" if present. */ -static inline unsigned long _find_next_bit(const unsigned long *addr1, +unsigned long _find_next_bit(const unsigned long *addr1, const unsigned long *addr2, unsigned long nbits, - unsigned long start, unsigned long invert) + unsigned long start, unsigned long invert, unsigned long le) { - unsigned long tmp; + unsigned long tmp, mask; + (void) le; if (unlikely(start >= nbits)) return nbits; @@ -43,7 +44,19 @@ static inline unsigned long _find_next_bit(const unsigned long *addr1, tmp ^= invert; /* Handle 1st word. */ - tmp &= BITMAP_FIRST_WORD_MASK(start); + mask = BITMAP_FIRST_WORD_MASK(start); + + /* + * Due to the lack of swab() in tools, and the fact that it doesn't + * need little-endian support, just comment it out + */ +#if (0) + if (le) + mask = swab(mask); +#endif + + tmp &= mask; + start = round_down(start, BITS_PER_LONG); while (!tmp) { @@ -57,18 +70,12 @@ static inline unsigned long _find_next_bit(const unsigned long *addr1, tmp ^= invert; } - return min(start + __ffs(tmp), nbits); -} +#if (0) + if (le) + tmp = swab(tmp); #endif -#ifndef find_next_bit -/* - * Find the next set bit in a memory region. - */ -unsigned long find_next_bit(const unsigned long *addr, unsigned long size, - unsigned long offset) -{ - return _find_next_bit(addr, NULL, size, offset, 0UL); + return min(start + __ffs(tmp), nbits); } #endif @@ -76,7 +83,7 @@ unsigned long find_next_bit(const unsigned long *addr, unsigned long size, /* * Find the first set bit in a memory region. */ -unsigned long find_first_bit(const unsigned long *addr, unsigned long size) +unsigned long _find_first_bit(const unsigned long *addr, unsigned long size) { unsigned long idx; @@ -93,7 +100,7 @@ unsigned long find_first_bit(const unsigned long *addr, unsigned long size) /* * Find the first cleared bit in a memory region. */ -unsigned long find_first_zero_bit(const unsigned long *addr, unsigned long size) +unsigned long _find_first_zero_bit(const unsigned long *addr, unsigned long size) { unsigned long idx; @@ -105,20 +112,3 @@ unsigned long find_first_zero_bit(const unsigned long *addr, unsigned long size) return size; } #endif - -#ifndef find_next_zero_bit -unsigned long find_next_zero_bit(const unsigned long *addr, unsigned long size, - unsigned long offset) -{ - return _find_next_bit(addr, NULL, size, offset, ~0UL); -} -#endif - -#ifndef find_next_and_bit -unsigned long find_next_and_bit(const unsigned long *addr1, - const unsigned long *addr2, unsigned long size, - unsigned long offset) -{ - return _find_next_bit(addr1, addr2, size, offset, 0UL); -} -#endif diff --git a/tools/scripts/Makefile.include b/tools/scripts/Makefile.include index 25adfec2cb39..f9271f3ea912 100644 --- a/tools/scripts/Makefile.include +++ b/tools/scripts/Makefile.include @@ -38,6 +38,7 @@ EXTRA_WARNINGS += -Wswitch-enum EXTRA_WARNINGS += -Wundef EXTRA_WARNINGS += -Wwrite-strings EXTRA_WARNINGS += -Wformat +EXTRA_WARNINGS += -Wno-type-limits # Makefiles suck: This macro sets a default value of $(2) for the # variable named by $(1), unless the variable has been set by diff --git a/tools/testing/selftests/filesystems/epoll/epoll_wakeup_test.c b/tools/testing/selftests/filesystems/epoll/epoll_wakeup_test.c index ad7fabd575f9..65ede506305c 100644 --- a/tools/testing/selftests/filesystems/epoll/epoll_wakeup_test.c +++ b/tools/testing/selftests/filesystems/epoll/epoll_wakeup_test.c @@ -3449,4 +3449,48 @@ TEST(epoll63) close(sfd[1]); } +/* + * t0 t1 + * (ew) \ / (ew) + * e0 + * | (lt) + * s0 + */ +TEST(epoll64) +{ + pthread_t waiter[2]; + struct epoll_event e; + struct epoll_mtcontext ctx = { 0 }; + + signal(SIGUSR1, signal_handler); + + ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, ctx.sfd), 0); + + ctx.efd[0] = epoll_create(1); + ASSERT_GE(ctx.efd[0], 0); + + e.events = EPOLLIN; + ASSERT_EQ(epoll_ctl(ctx.efd[0], EPOLL_CTL_ADD, ctx.sfd[0], &e), 0); + + /* + * main will act as the emitter once both waiter threads are + * blocked and expects to both be awoken upon the ready event. + */ + ctx.main = pthread_self(); + ASSERT_EQ(pthread_create(&waiter[0], NULL, waiter_entry1a, &ctx), 0); + ASSERT_EQ(pthread_create(&waiter[1], NULL, waiter_entry1a, &ctx), 0); + + usleep(100000); + ASSERT_EQ(write(ctx.sfd[1], "w", 1), 1); + + ASSERT_EQ(pthread_join(waiter[0], NULL), 0); + ASSERT_EQ(pthread_join(waiter[1], NULL), 0); + + EXPECT_EQ(ctx.count, 2); + + close(ctx.efd[0]); + close(ctx.sfd[0]); + close(ctx.sfd[1]); +} + TEST_HARNESS_MAIN diff --git a/tools/testing/selftests/kvm/lib/sparsebit.c b/tools/testing/selftests/kvm/lib/sparsebit.c index 031ba3c932ed..a0d0c83d83de 100644 --- a/tools/testing/selftests/kvm/lib/sparsebit.c +++ b/tools/testing/selftests/kvm/lib/sparsebit.c @@ -1890,7 +1890,6 @@ void sparsebit_validate_internal(struct sparsebit *s) */ #include <stdlib.h> -#include <assert.h> struct range { sparsebit_idx_t first, last; diff --git a/tools/testing/selftests/mincore/mincore_selftest.c b/tools/testing/selftests/mincore/mincore_selftest.c index 5a1e85ff5d32..e54106643337 100644 --- a/tools/testing/selftests/mincore/mincore_selftest.c +++ b/tools/testing/selftests/mincore/mincore_selftest.c @@ -14,7 +14,6 @@ #include <sys/mman.h> #include <string.h> #include <fcntl.h> -#include <string.h> #include "../kselftest.h" #include "../kselftest_harness.h" diff --git a/tools/testing/selftests/powerpc/mm/tlbie_test.c b/tools/testing/selftests/powerpc/mm/tlbie_test.c index f85a0938ab25..48344a74b212 100644 --- a/tools/testing/selftests/powerpc/mm/tlbie_test.c +++ b/tools/testing/selftests/powerpc/mm/tlbie_test.c @@ -33,7 +33,6 @@ #include <sched.h> #include <time.h> #include <stdarg.h> -#include <sched.h> #include <pthread.h> #include <signal.h> #include <sys/prctl.h> diff --git a/tools/testing/selftests/proc/Makefile b/tools/testing/selftests/proc/Makefile index 8be8a03d2973..1054e40a499a 100644 --- a/tools/testing/selftests/proc/Makefile +++ b/tools/testing/selftests/proc/Makefile @@ -12,6 +12,7 @@ TEST_GEN_PROGS += proc-self-map-files-001 TEST_GEN_PROGS += proc-self-map-files-002 TEST_GEN_PROGS += proc-self-syscall TEST_GEN_PROGS += proc-self-wchan +TEST_GEN_PROGS += proc-subset-pid TEST_GEN_PROGS += proc-uptime-001 TEST_GEN_PROGS += proc-uptime-002 TEST_GEN_PROGS += read diff --git a/tools/testing/selftests/proc/proc-subset-pid.c b/tools/testing/selftests/proc/proc-subset-pid.c new file mode 100644 index 000000000000..d1052bcab039 --- /dev/null +++ b/tools/testing/selftests/proc/proc-subset-pid.c @@ -0,0 +1,121 @@ +/* + * Copyright (c) 2021 Alexey Dobriyan <adobriyan@gmail.com> + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ +/* + * Test that "mount -t proc -o subset=pid" hides everything but pids, + * /proc/self and /proc/thread-self. + */ +#undef NDEBUG +#include <assert.h> +#include <errno.h> +#include <sched.h> +#include <stdbool.h> +#include <stdlib.h> +#include <string.h> +#include <sys/mount.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <fcntl.h> +#include <dirent.h> +#include <unistd.h> +#include <stdio.h> + +static inline bool streq(const char *a, const char *b) +{ + return strcmp(a, b) == 0; +} + +static void make_private_proc(void) +{ + if (unshare(CLONE_NEWNS) == -1) { + if (errno == ENOSYS || errno == EPERM) { + exit(4); + } + exit(1); + } + if (mount(NULL, "/", NULL, MS_PRIVATE|MS_REC, NULL) == -1) { + exit(1); + } + if (mount(NULL, "/proc", "proc", 0, "subset=pid") == -1) { + exit(1); + } +} + +static bool string_is_pid(const char *s) +{ + while (1) { + switch (*s++) { + case '0':case '1':case '2':case '3':case '4': + case '5':case '6':case '7':case '8':case '9': + continue; + + case '\0': + return true; + + default: + return false; + } + } +} + +int main(void) +{ + make_private_proc(); + + DIR *d = opendir("/proc"); + assert(d); + + struct dirent *de; + + bool dot = false; + bool dot_dot = false; + bool self = false; + bool thread_self = false; + + while ((de = readdir(d))) { + if (streq(de->d_name, ".")) { + assert(!dot); + dot = true; + assert(de->d_type == DT_DIR); + } else if (streq(de->d_name, "..")) { + assert(!dot_dot); + dot_dot = true; + assert(de->d_type == DT_DIR); + } else if (streq(de->d_name, "self")) { + assert(!self); + self = true; + assert(de->d_type == DT_LNK); + } else if (streq(de->d_name, "thread-self")) { + assert(!thread_self); + thread_self = true; + assert(de->d_type == DT_LNK); + } else { + if (!string_is_pid(de->d_name)) { + fprintf(stderr, "d_name '%s'\n", de->d_name); + assert(0); + } + assert(de->d_type == DT_DIR); + } + } + + char c; + int rv = readlink("/proc/cpuinfo", &c, 1); + assert(rv == -1 && errno == ENOENT); + + int fd = open("/proc/cpuinfo", O_RDONLY); + assert(fd == -1 && errno == ENOENT); + + return 0; +} diff --git a/tools/testing/selftests/proc/read.c b/tools/testing/selftests/proc/read.c index b3ef9e14d6cc..35ee78dff144 100644 --- a/tools/testing/selftests/proc/read.c +++ b/tools/testing/selftests/proc/read.c @@ -14,7 +14,7 @@ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ // Test -// 1) read of every file in /proc +// 1) read and lseek on every file in /proc // 2) readlink of every symlink in /proc // 3) recursively (1) + (2) for every directory in /proc // 4) write to /proc/*/clear_refs and /proc/*/task/*/clear_refs @@ -45,6 +45,8 @@ static void f_reg(DIR *d, const char *filename) fd = openat(dirfd(d), filename, O_RDONLY|O_NONBLOCK); if (fd == -1) return; + /* struct proc_ops::proc_lseek is mandatory if file is seekable. */ + (void)lseek(fd, 0, SEEK_SET); rv = read(fd, buf, sizeof(buf)); assert((0 <= rv && rv <= sizeof(buf)) || rv == -1); close(fd); diff --git a/tools/usb/hcd-tests.sh b/tools/usb/hcd-tests.sh index e8cad6a4f9c9..73f914d13f5c 100644 --- a/tools/usb/hcd-tests.sh +++ b/tools/usb/hcd-tests.sh @@ -272,5 +272,3 @@ do echo '' done done - -# vim: sw=4 |