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* [PATCH] Common compat_sys_sysinfoKyle McMartin2007-02-112-65/+1
| | | | | | | | | | | | | | | | I noticed that almost all architectures implemented exactly the same sys32_sysinfo... except parisc, where a bug was to be found in handling of the uptime. So let's remove a whole whack of code for fun and profit. Cribbed compat_sys_sysinfo from x86_64's implementation, since I figured it would be the best tested. This patch incorporates Arnd's suggestion of not using set_fs/get_fs, but instead extracting out the common code from sys_sysinfo. Cc: Christoph Hellwig <hch@infradead.org> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PATCH] Consolidate default sched_clock()Alexey Dobriyan2007-02-111-11/+0
| | | | | | | | | Use attribute(weak). Signed-off-by: Alexey Dobriyan <adobriyan@openvz.org> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PATCH] disable init/initramfs.c: architecturesJean-Paul Saman2007-02-111-0/+2
| | | | | | | | | | | | Update all arch/*/kernel/vmlinux.lds.S to not include space for initramfs when CONFIG_BLK_DEV_INITRAMFS is not selected. This saves another 4 kbytes on most platfoms (some reserve PAGE_SIZE for initramfs). Signed-off-by: Jean-Paul Saman <jean-paul.saman@nxp.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PATCH] optional ZONE_DMA: remove ZONE_DMA remains from pariscChristoph Lameter2007-02-112-6/+1
| | | | | | | | | | | | Remove ZONE_DMA remains from parisc so that kernels are build without ZONE_DMA. Signed-off-by: Christoph Lameter <clameter@sgi.com> Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Matthew Wilcox <willy@debian.org> Cc: James Bottomley <James.Bottomley@steeleye.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PATCH] Change cpu_up and co from __devinit to __cpuinitGautham R Shenoy2007-01-111-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Compiling the kernel with CONFIG_HOTPLUG = y and CONFIG_HOTPLUG_CPU = n with CONFIG_RELOCATABLE = y generates the following modpost warnings WARNING: vmlinux - Section mismatch: reference to .init.data: from .text between '_cpu_up' (at offset 0xc0141b7d) and 'cpu_up' WARNING: vmlinux - Section mismatch: reference to .init.data: from .text between '_cpu_up' (at offset 0xc0141b9c) and 'cpu_up' WARNING: vmlinux - Section mismatch: reference to .init.text:__cpu_up from .text between '_cpu_up' (at offset 0xc0141bd8) and 'cpu_up' WARNING: vmlinux - Section mismatch: reference to .init.data: from .text between '_cpu_up' (at offset 0xc0141c05) and 'cpu_up' WARNING: vmlinux - Section mismatch: reference to .init.data: from .text between '_cpu_up' (at offset 0xc0141c26) and 'cpu_up' WARNING: vmlinux - Section mismatch: reference to .init.data: from .text between '_cpu_up' (at offset 0xc0141c37) and 'cpu_up' This is because cpu_up, _cpu_up and __cpu_up (in some architectures) are defined as __devinit AND __cpu_up calls some __cpuinit functions. Since __cpuinit would map to __init with this kind of a configuration, we get a .text refering .init.data warning. This patch solves the problem by converting all of __cpu_up, _cpu_up and cpu_up from __devinit to __cpuinit. The approach is justified since the callers of cpu_up are either dependent on CONFIG_HOTPLUG_CPU or are of __init type. Thus when CONFIG_HOTPLUG_CPU=y, all these cpu up functions would land up in .text section, and when CONFIG_HOTPLUG_CPU=n, all these functions would land up in .init section. Tested on a i386 SMP machine running linux-2.6.20-rc3-mm1. Signed-off-by: Gautham R Shenoy <ego@in.ibm.com> Cc: Vivek Goyal <vgoyal@in.ibm.com> Cc: Mikael Starvik <starvik@axis.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] getting rid of all casts of k[cmz]alloc() callsRobert P. J. Day2006-12-132-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Run this: #!/bin/sh for f in $(grep -Erl "\([^\)]*\) *k[cmz]alloc" *) ; do echo "De-casting $f..." perl -pi -e "s/ ?= ?\([^\)]*\) *(k[cmz]alloc) *\(/ = \1\(/" $f done And then go through and reinstate those cases where code is casting pointers to non-pointers. And then drop a few hunks which conflicted with outstanding work. Cc: Russell King <rmk@arm.linux.org.uk>, Ian Molton <spyro@f2s.com> Cc: Mikael Starvik <starvik@axis.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jeff Dike <jdike@addtoit.com> Cc: Greg KH <greg@kroah.com> Cc: Jens Axboe <jens.axboe@oracle.com> Cc: Paul Fulghum <paulkf@microgate.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Karsten Keil <kkeil@suse.de> Cc: Mauro Carvalho Chehab <mchehab@infradead.org> Cc: Jeff Garzik <jeff@garzik.org> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: Ian Kent <raven@themaw.net> Cc: Steven French <sfrench@us.ibm.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Neil Brown <neilb@cse.unsw.edu.au> Cc: Jaroslav Kysela <perex@suse.cz> Cc: Takashi Iwai <tiwai@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Generic ioremap_page_range: parisc conversionHaavard Skinnemoen2006-12-081-104/+7
| | | | | | | | | Convert parisc to use generic ioremap_page_range() Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com> Acked-by: Kyle McMartin <kyle@parisc-linux.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] LOG2: Implement a general integer log2 facility in the kernelDavid Howells2006-12-081-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This facility provides three entry points: ilog2() Log base 2 of unsigned long ilog2_u32() Log base 2 of u32 ilog2_u64() Log base 2 of u64 These facilities can either be used inside functions on dynamic data: int do_something(long q) { ...; y = ilog2(x) ...; } Or can be used to statically initialise global variables with constant values: unsigned n = ilog2(27); When performing static initialisation, the compiler will report "error: initializer element is not constant" if asked to take a log of zero or of something not reducible to a constant. They treat negative numbers as unsigned. When not dealing with a constant, they fall back to using fls() which permits them to use arch-specific log calculation instructions - such as BSR on x86/x86_64 or SCAN on FRV - if available. [akpm@osdl.org: MMC fix] Signed-off-by: David Howells <dhowells@redhat.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: David Howells <dhowells@redhat.com> Cc: Wojtek Kaniewski <wojtekka@toxygen.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] struct path: convert pariscJosef Sipek2006-12-081-1/+1
| | | | | | Signed-off-by: Josef Sipek <jsipek@fsl.cs.sunysb.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] elf: Always define elf_addr_t in linux/elf.hMagnus Damm2006-12-071-1/+0
| | | | | | | | | | | | | Define elf_addr_t in linux/elf.h. The size of the type is determined using ELF_CLASS. This allows us to remove the defines that today are spread all over .c and .h files. Signed-off-by: Magnus Damm <magnus@valinux.co.jp> Cc: Daniel Jacobowitz <drow@false.org> Cc: Roland McGrath <roland@redhat.com> Cc: Jakub Jelinek <jakub@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] mm: arch do_page_fault() vs in_atomic()Peter Zijlstra2006-12-071-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In light of the recent pagefault and filemap_copy_from_user work I've gone through all the arch pagefault handlers to make sure the inc_preempt_count() 'feature' works as expected. Several sections of code (including the new filemap_copy_from_user) rely on the fact that faults do not take locks under increased preempt count. arch/x86_64 - good arch/powerpc - good arch/cris - fixed arch/i386 - good arch/parisc - fixed arch/sh - good arch/sparc - good arch/s390 - good arch/m68k - fixed arch/ppc - good arch/alpha - fixed arch/mips - good arch/sparc64 - good arch/ia64 - good arch/arm - fixed arch/um - good arch/avr32 - good arch/h8300 - NA arch/m32r - good arch/v850 - good arch/frv - fixed arch/m68knommu - NA arch/arm26 - fixed arch/sh64 - fixed arch/xtensa - good Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [NET]: PARISC checksum annotations and cleanups.Al Viro2006-12-021-7/+10
| | | | | | | | * sanitized prototypes, annotated * kill shift-by-16 in checksum calculation Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
* [PATCH] vmlinux.lds: consolidate initcall sectionsAndrew Morton2006-10-271-7/+1
| | | | | | | | | | | | | | Add a vmlinux.lds.h helper macro for defining the eight-level initcall table, teach all the architectures to use it. This is a prerequisite for a patch which performs initcall synchronisation for multithreaded-probing. Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@osdl.org> [ Added AVR32 as well ] Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] remove bogus arch-specific syscall exportsAl Viro2006-10-111-4/+0
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PARISC] More pt_regs removalMatthew Wilcox2006-10-072-27/+12
| | | | | | | | Remove pt_regs from ipi_interrupt and timer_interrupt. Inline smp_do_timer() into its only caller, and unify the SMP and non-SMP paths. Fixes a profiling bug. Signed-off-by: Matthew Wilcox <matthew@wil.cx>
* [PARISC] Make firmware calls irqsafe-ish...Kyle McMartin2006-10-072-99/+159
| | | | | | | | | | There's no reason why we shouldn't be using _irqsave instead of _irq for any of these calls. fwiw, this fixes the "start_kernel(): bug: interrupts were enabled early" message displayed on bootup recently. Signed-off-by: Kyle McMartin <kyle@parisc-linux.org> Signed-off-by: Matthew Wilcox <matthew@wil.cx>
* [PA-RISC] Fix boot breakageMatthew Wilcox2006-10-071-3/+3
| | | | | | | Conditionals were the wrong way around. Turns out I was booting the wrong kernel when testing the original fix. Signed-off-by: Matthew Wilcox <matthew@wil.cx>
* [PARISC] Use set_irq_regsMatthew Wilcox2006-10-071-0/+3
| | | | | | Actually set the irq_regs pointer. Signed-off-by: Matthew Wilcox <matthew@wil.cx>
* Build fixes for struct pt_regs removalMatthew Wilcox2006-10-062-4/+4
| | | | Signed-off-by: Matthew Wilcox <matthew@wil.cx>
* [PA-RISC] Fix time.c for new do_timer() calling conventionMatthew Wilcox2006-10-051-14/+23
| | | | | | | | | do_timer now wants to know how many ticks have elapsed. Now that we have to calculate that, we can eliminate some of the clever code that avoided having to calculate that. Also add some more documentation. I'd like to thank Grant Grundler for helping me with this. Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>
* [PA-RISC] Fix must_check warnings in drivers.cMatthew Wilcox2006-10-051-3/+8
| | | | | | | | | Panic if we can't register the parisc bus or the root parisc device. There's no way we can boot without them, so let the user know ASAP. If we can't register a parisc device, handle the failure gracefully. Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>
* [PA-RISC] Fix parisc_newuname()Matthew Wilcox2006-10-051-23/+10
| | | | | | | The utsname virtualisation broke parisc_newuname compilation. Rewrite the implementation to call sys_newuname() like sparc64 does. Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>
* [PA-RISC] Remove warning from pci.cMatthew Wilcox2006-10-051-1/+1
| | | | | | | max() doesn't like comparing an unsigned long and a resource_size_t, so make the local variables resource_size_t too. Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>
* [PA-RISC] Fix filldir warningsMatthew Wilcox2006-10-052-7/+5
| | | | | | filldir_t now takes a u64, not an ino_t. Signed-off-by: Matthew Wilcox <matthew@wil.cx>
* [PA-RISC] Fix sys32_sysctlMatthew Wilcox2006-10-051-6/+9
| | | | | | | | When CONFIG_SYSCTL_SYSCALL isn't defined, do_sysctl doesn't exist and we fail to link. Fix with an ifdef, the same way sparc64 did. Also add some minor changes to be more like sparc64. Signed-off-by: Matthew Wilcox <matthew@wil.cx>
* Merge master.kernel.org:/pub/scm/linux/kernel/git/davej/confighLinus Torvalds2006-10-042-3/+0
|\ | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/davej/configh: Remove all inclusions of <linux/config.h> Manually resolved trivial path conflicts due to removed files in the sound/oss/ subdirectory.
| * Remove all inclusions of <linux/config.h>Dave Jones2006-10-042-3/+0
| | | | | | | | | | | | kbuild explicitly includes this at build time. Signed-off-by: Dave Jones <davej@redhat.com>
* | [PARISC] Kill wall_jiffies useAndrew Morton2006-10-041-3/+0
| | | | | | | | | | | | | | wall_jiffies and jiffies are now equal, so this is a noop... Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
* | [PARISC] Honour "panic_on_oops" sysctlHelge Deller2006-10-041-0/+10
| | | | | | | | | | Signed-off-by: Helge Deller <deller@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
* | [PARISC] Export clear_user_page to modulesMatthew Wilcox2006-10-041-2/+2
| | | | | | | | | | Signed-off-by: Matthew Wilcox <willy@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
* | [PARISC] Fix CONFIG_DEBUG_SPINLOCKMatthew Wilcox2006-10-041-3/+0
| | | | | | | | | | | | | | | | | | Joel Soete points out that we refer to pa_tlb_lock but only define it if CONFIG_SMP which breaks a uniprocessor build with CONFIG_DEBUG_SPINLOCK enabled. No module refers to pa_tlb_lock, so we can delete the export. Signed-off-by: Matthew Wilcox <willy@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
* | [PARISC] Fix HPUX compat compile with current GCCMatthew Wilcox2006-10-041-1/+1
| | | | | | | | | | | | | | GCC no longer allows a cast as lvalue; fix the same way fs/readdir.c was Signed-off-by: Matthew Wilcox <matthew@wil.cx> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
* | [PARISC] Fix iounmap compile warningMatthew Wilcox2006-10-041-1/+1
| | | | | | | | | | | | | | | | iounmap's argument needs to be both const and volatile, otherwise we'll get warnings that we're discarding pointer qualifiers Signed-off-by: Matthew Wilcox <matthew@wil.cx> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
* | [PARISC] Add hardware found in the rp8400Matthew Wilcox2006-10-041-0/+3
| | | | | | | | | | Signed-off-by: Matthew Wilcox <matthew@wil.cx> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
* | [PARISC] Allow nested interruptsJames Bottomley2006-10-042-63/+89
| | | | | | | | | | | | | | | | | | | | | | | | Our prior mode of operation didn't allow nested interrupts because it makes the interrupt code much simpler. However, nested interrupts are better for latency. This code uses the EIEM register to simulate level interrupts and thus achieve nesting. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
* | [PARISC] Further updates to timer_interrupt()Grant Grundler2006-10-041-62/+65
| | | | | | | | | | | | | | | | | | | | | | | | | | This version (relative to the current tree): o eliminates "while (ticks_elapsed)" loop. It's not needed. o drop "ticks_elapsed" completely from timer_interrupt(). o Estimates elapsed cycles (based on HZ) to see which kind of math we want to use to calculate "cycles_remainder". o Fixes a bug where we would loose a tick if we decided we wanted to skip one interrupt. Signed-off-by: Grant Grundler <grundler@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
* | [PARISC] remove halftick and copy clocktick to local var (gcc can optimize ↵Grant Grundler2006-10-041-15/+31
| | | | | | | | | | | | | | usage) Signed-off-by: Grant Grundler <grundler@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
* | [PARISC] Rewrite timer_interrupt() and gettimeoffset() using "unsigned" math.Grant Grundler2006-10-041-44/+96
| | | | | | | | | | | | | | | | | | | | It's just a bit easier to follow and timer code is complex enough. So far, only tested on A500-5x (64-bit SMP), ie: gettimeoffset() code hasn't been tested at all. Signed-off-by: Grant Grundler <grundler@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
* | [PARISC] Add new function to start local Interval Timer, start_cpu_itimer()Grant Grundler2006-10-042-10/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | I couldn't find where the itimer was getting started for slave CPUs. CPU 0 (master) itimer was started in time_init() (arch/parisc/kernel/time.c). start_cpu_itimer() code was striped from time_init(). Slaves now start their itimer in smp_cpu_init(). This is a first step towards making gettimeoffset() work for SMP. Next step will be to determine the CR16 (cycle counter) offsets for each CPU relative to the master (CPU 0). Signed-off-by: Grant Grundler <grundler@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
* | [PARISC] Prevent processor_probe() from clobbering cpu_data[0]Grant Grundler2006-10-041-2/+3
| | | | | | | | | | | | | | | | processor_probe() shouldn't clobber cpu_data[0] cpu_data[0].it_value (used by timer_interrupt()) is already set. Signed-off-by: Grant Grundler <grundler@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
* | [PARISC] [BUGFIX] nullify branch delay slot of the jump back toKyle McMartin2006-10-041-1/+1
| | | | | | | | | | | | | | intr_restore in intr_do_preempt. This prevents the execution of an unwanted insn... Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
* | [PARISC] Allow overriding personality with sys_personalityKyle McMartin2006-10-042-2/+47
| | | | | | | | | | | | And now suddenly, linux32 works on parisc... Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
* | [PARISC] Switch is_compat_task to use TIF_32BITKyle McMartin2006-10-042-26/+3
| | | | | | | | | | | | | | | | Stop using PER_LINUX32 to designate processes needing compaterizing. Convert is_compat_task to use TIF_32BIT and set TIF_32BIT in binfmt_elf32.c Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
* | [PARISC] parisc specific kmap API implementation for pa8800James Bottomley2006-10-041-1/+44
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes the pa8800 at a gross level (there are still other subtle incoherency issues which can still cause crashes and HPMCs). What it does is try to force eject inequivalent aliases before they become visible to the L2 cache (which is where we get the incoherence problems). A new function (parisc_requires_coherency) is introduced in asm/processor.h to identify the pa8x00 processors (8800 and 8900) which have the issue. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
* | [PARISC] Fix up parisc irq handling for genirq changesKyle McMartin2006-10-041-1/+1
| | | | | | | | | | | | Clean up enough to get things compiling again in the interim. Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
* | [PARISC] Abstract shift register left in .SKyle McMartin2006-10-041-15/+4
| | | | | | | | | | | | | | | | Abstract existing shift register left macros as shift register right are. This lends itself to a nice clean up of some #ifdef blocks in entry.S Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
* | [PARISC] Remove variables decls duplicated from asm-generic/sections.hKyle McMartin2006-10-041-13/+10
| | | | | | | | Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
* | [PARISC] PA7200 also supports prefetch for readKyle McMartin2006-10-041-1/+1
|/ | | | | | | | | It seems PA7200 processors also suppress traps on loads to %r0. This means we can prefetch for read on these cpus. Of course, we can't support prefetch for write, since that requires LOAD DOUBLEWORD which was added with PA2.0 Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
* Attack of "the the"s in archMatt LaPlante2006-10-031-2/+2
| | | | | | | | | The patch below corrects multiple occurances of "the the" typos across several files, both in source comments and KConfig files. There is no actual code changed, only text. Note this only affects the /arch directory, and I believe I could find many more elsewhere. :) Signed-off-by: Adrian Bunk <bunk@stusta.de>
* [PATCH] VFS: Make filldir_t and struct kstat deal in 64-bit inode numbersDavid Howells2006-10-032-4/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | These patches make the kernel pass 64-bit inode numbers internally when communicating to userspace, even on a 32-bit system. They are required because some filesystems have intrinsic 64-bit inode numbers: NFS3+ and XFS for example. The 64-bit inode numbers are then propagated to userspace automatically where the arch supports it. Problems have been seen with userspace (eg: ld.so) using the 64-bit inode number returned by stat64() or getdents64() to differentiate files, and failing because the 64-bit inode number space was compressed to 32-bits, and so overlaps occur. This patch: Make filldir_t take a 64-bit inode number and struct kstat carry a 64-bit inode number so that 64-bit inode numbers can be passed back to userspace. The stat functions then returns the full 64-bit inode number where available and where possible. If it is not possible to represent the inode number supplied by the filesystem in the field provided by userspace, then error EOVERFLOW will be issued. Similarly, the getdents/readdir functions now pass the full 64-bit inode number to userspace where possible, returning EOVERFLOW instead when a directory entry is encountered that can't be properly represented. Note that this means that some inodes will not be stat'able on a 32-bit system with old libraries where they were before - but it does mean that there will be no ambiguity over what a 32-bit inode number refers to. Note similarly that directory scans may be cut short with an error on a 32-bit system with old libraries where the scan would work before for the same reasons. It is judged unlikely that this situation will occur because modern glibc uses 64-bit capable versions of stat and getdents class functions exclusively, and that older systems are unlikely to encounter unrepresentable inode numbers anyway. [akpm: alpha build fix] Signed-off-by: David Howells <dhowells@redhat.com> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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