From 350e88bad4964da6feabee02a1a70381bcdb087e Mon Sep 17 00:00:00 2001 From: Mike Rapoport Date: Mon, 13 May 2019 17:22:59 -0700 Subject: mm: memblock: make keeping memblock memory opt-in rather than opt-out Most architectures do not need the memblock memory after the page allocator is initialized, but only few enable ARCH_DISCARD_MEMBLOCK in the arch Kconfig. Replacing ARCH_DISCARD_MEMBLOCK with ARCH_KEEP_MEMBLOCK and inverting the logic makes it clear which architectures actually use memblock after system initialization and skips the necessity to add ARCH_DISCARD_MEMBLOCK to the architectures that are still missing that option. Link: http://lkml.kernel.org/r/1556102150-32517-1-git-send-email-rppt@linux.ibm.com Signed-off-by: Mike Rapoport Acked-by: Michael Ellerman (powerpc) Cc: Russell King Cc: Catalin Marinas Cc: Will Deacon Cc: Richard Kuo Cc: Tony Luck Cc: Fenghua Yu Cc: Geert Uytterhoeven Cc: Ralf Baechle Cc: Paul Burton Cc: James Hogan Cc: Ley Foon Tan Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: Martin Schwidefsky Cc: Heiko Carstens Cc: Yoshinori Sato Cc: Rich Felker Cc: Thomas Gleixner Cc: Ingo Molnar Cc: Borislav Petkov Cc: "H. Peter Anvin" Cc: Eric Biederman Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/arm/Kconfig | 2 +- arch/arm64/Kconfig | 1 + arch/hexagon/Kconfig | 1 - arch/ia64/Kconfig | 1 - arch/m68k/Kconfig | 1 - arch/mips/Kconfig | 1 - arch/nios2/Kconfig | 1 - arch/powerpc/Kconfig | 1 + arch/s390/Kconfig | 1 + arch/sh/Kconfig | 1 - arch/x86/Kconfig | 1 - 11 files changed, 4 insertions(+), 8 deletions(-) (limited to 'arch') diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index a11dfcc2a130..5fd344bd06b9 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -4,7 +4,6 @@ config ARM default y select ARCH_32BIT_OFF_T select ARCH_CLOCKSOURCE_DATA - select ARCH_DISCARD_MEMBLOCK if !HAVE_ARCH_PFN_VALID && !KEXEC select ARCH_HAS_DEBUG_VIRTUAL if MMU select ARCH_HAS_DEVMEM_IS_ALLOWED select ARCH_HAS_ELF_RANDOMIZE @@ -22,6 +21,7 @@ config ARM select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST select ARCH_HAVE_CUSTOM_GPIO_H select ARCH_HAS_GCOV_PROFILE_ALL + select ARCH_KEEP_MEMBLOCK if HAVE_ARCH_PFN_VALID || KEXEC select ARCH_MIGHT_HAVE_PC_PARPORT select ARCH_NO_SG_CHAIN if !ARM_HAS_SG_CHAIN select ARCH_OPTIONAL_KERNEL_RWX if ARCH_HAS_STRICT_KERNEL_RWX diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 7a1aa53d188d..69a59a5d1143 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -60,6 +60,7 @@ config ARM64 select ARCH_INLINE_SPIN_UNLOCK_BH if !PREEMPT select ARCH_INLINE_SPIN_UNLOCK_IRQ if !PREEMPT select ARCH_INLINE_SPIN_UNLOCK_IRQRESTORE if !PREEMPT + select ARCH_KEEP_MEMBLOCK select ARCH_USE_CMPXCHG_LOCKREF select ARCH_USE_QUEUED_RWLOCKS select ARCH_USE_QUEUED_SPINLOCKS diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig index 3e54a53208d5..b7d404bbaa0f 100644 --- a/arch/hexagon/Kconfig +++ b/arch/hexagon/Kconfig @@ -22,7 +22,6 @@ config HEXAGON select GENERIC_IRQ_SHOW select HAVE_ARCH_KGDB select HAVE_ARCH_TRACEHOOK - select ARCH_DISCARD_MEMBLOCK select NEED_SG_DMA_LENGTH select NO_IOPORT_MAP select GENERIC_IOMAP diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig index 73a26f04644e..7468d8e50467 100644 --- a/arch/ia64/Kconfig +++ b/arch/ia64/Kconfig @@ -33,7 +33,6 @@ config IA64 select ARCH_HAS_DMA_COHERENT_TO_PFN if SWIOTLB select ARCH_HAS_SYNC_DMA_FOR_CPU if SWIOTLB select VIRT_TO_BUS - select ARCH_DISCARD_MEMBLOCK select GENERIC_IRQ_PROBE select GENERIC_PENDING_IRQ if SMP select GENERIC_IRQ_SHOW diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig index fe5cc2da6d10..218e037ef901 100644 --- a/arch/m68k/Kconfig +++ b/arch/m68k/Kconfig @@ -26,7 +26,6 @@ config M68K select MODULES_USE_ELF_RELA select OLD_SIGSUSPEND3 select OLD_SIGACTION - select ARCH_DISCARD_MEMBLOCK select MMU_GATHER_NO_RANGE if MMU config CPU_BIG_ENDIAN diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index ff8cff9fcf54..677e5bfeff47 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -5,7 +5,6 @@ config MIPS select ARCH_32BIT_OFF_T if !64BIT select ARCH_BINFMT_ELF_STATE if MIPS_FP_SUPPORT select ARCH_CLOCKSOURCE_DATA - select ARCH_DISCARD_MEMBLOCK select ARCH_HAS_ELF_RANDOMIZE select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST select ARCH_HAS_UBSAN_SANITIZE_ALL diff --git a/arch/nios2/Kconfig b/arch/nios2/Kconfig index ea37394ff3ea..26a9c760a98b 100644 --- a/arch/nios2/Kconfig +++ b/arch/nios2/Kconfig @@ -23,7 +23,6 @@ config NIOS2 select SPARSE_IRQ select USB_ARCH_HAS_HCD if USB_SUPPORT select CPU_NO_EFFICIENT_FFS - select ARCH_DISCARD_MEMBLOCK select MMU_GATHER_NO_RANGE if MMU config GENERIC_CSUM diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index d7996cfaceca..8c1c636308c8 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -137,6 +137,7 @@ config PPC select ARCH_HAS_UBSAN_SANITIZE_ALL select ARCH_HAS_ZONE_DEVICE if PPC_BOOK3S_64 select ARCH_HAVE_NMI_SAFE_CMPXCHG + select ARCH_KEEP_MEMBLOCK select ARCH_MIGHT_HAVE_PC_PARPORT select ARCH_MIGHT_HAVE_PC_SERIO select ARCH_OPTIONAL_KERNEL_RWX if ARCH_HAS_STRICT_KERNEL_RWX diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index d0c046af65fa..109243fdb6ec 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -100,6 +100,7 @@ config S390 select ARCH_INLINE_WRITE_UNLOCK_BH select ARCH_INLINE_WRITE_UNLOCK_IRQ select ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE + select ARCH_KEEP_MEMBLOCK select ARCH_SAVE_PAGE_KEYS if HIBERNATION select ARCH_SUPPORTS_ATOMIC_RMW select ARCH_SUPPORTS_NUMA_BALANCING diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig index 2a77033e1e7c..b77f512bb176 100644 --- a/arch/sh/Kconfig +++ b/arch/sh/Kconfig @@ -10,7 +10,6 @@ config SUPERH select DMA_DECLARE_COHERENT select HAVE_IDE if HAS_IOPORT_MAP select HAVE_MEMBLOCK_NODE_MAP - select ARCH_DISCARD_MEMBLOCK select HAVE_OPROFILE select HAVE_ARCH_TRACEHOOK select HAVE_PERF_EVENTS diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index f21bc56e5d7b..818b361094ed 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -47,7 +47,6 @@ config X86 select ARCH_32BIT_OFF_T if X86_32 select ARCH_CLOCKSOURCE_DATA select ARCH_CLOCKSOURCE_INIT - select ARCH_DISCARD_MEMBLOCK select ARCH_HAS_ACPI_TABLE_UPGRADE if ACPI select ARCH_HAS_DEBUG_VIRTUAL select ARCH_HAS_DEVMEM_IS_ALLOWED -- cgit v1.2.3