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author | Minchan Kim <minchan@kernel.org> | 2017-08-10 15:24:05 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-08-10 15:54:07 -0700 |
commit | 56236a59556cfd3bae7bffb7e5f438b5ef0af880 (patch) | |
tree | b1e540f735b97b095edc76ead43408d793556575 /arch/sh | |
parent | a9b802500ebbff1544519a2969323b719dac21f0 (diff) | |
download | linux-56236a59556cfd3bae7bffb7e5f438b5ef0af880.tar.gz |
mm: refactor TLB gathering API
This patch is a preparatory patch for solving race problems caused by TLB batch. For that, we will increase/decrease TLB flush pending count of mm_struct whenever tlb_[gather|finish]_mmu is called. Before making it simple, this patch separates architecture specific part and rename it to arch_tlb_[gather|finish]_mmu and generic part just calls it. It shouldn't change any behavior. Link: http://lkml.kernel.org/r/20170802000818.4760-5-namit@vmware.com Signed-off-by: Minchan Kim <minchan@kernel.org> Signed-off-by: Nadav Amit <namit@vmware.com> Acked-by: Mel Gorman <mgorman@techsingularity.net> Cc: Ingo Molnar <mingo@redhat.com> Cc: Russell King <linux@armlinux.org.uk> Cc: Tony Luck <tony.luck@intel.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Jeff Dike <jdike@addtoit.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Hugh Dickins <hughd@google.com> Cc: Mel Gorman <mgorman@suse.de> Cc: Nadav Amit <nadav.amit@gmail.com> Cc: Rik van Riel <riel@redhat.com> Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/sh')
-rw-r--r-- | arch/sh/include/asm/tlb.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/sh/include/asm/tlb.h b/arch/sh/include/asm/tlb.h index 46e0d635e36f..89786560dbd4 100644 --- a/arch/sh/include/asm/tlb.h +++ b/arch/sh/include/asm/tlb.h @@ -36,7 +36,8 @@ static inline void init_tlb_gather(struct mmu_gather *tlb) } static inline void -tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, unsigned long start, unsigned long end) +arch_tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, + unsigned long start, unsigned long end) { tlb->mm = mm; tlb->start = start; @@ -47,7 +48,8 @@ tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, unsigned long start } static inline void -tlb_finish_mmu(struct mmu_gather *tlb, unsigned long start, unsigned long end) +arch_tlb_finish_mmu(struct mmu_gather *tlb, + unsigned long start, unsigned long end) { if (tlb->fullmm) flush_tlb_mm(tlb->mm); |