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| author | Ingo Molnar <mingo@kernel.org> | 2013-07-01 11:16:54 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2013-07-01 11:18:53 +0200 |
| commit | 2fd1b487884310d0aa0c0640179dc7490ad86313 (patch) | |
| tree | 1083dce15bd7dc0858c3883b8a361242046c5e09 /arch/arm/include/asm/tlb.h | |
| parent | 333bb864f192015a53b5060b829089decd0220ef (diff) | |
| parent | 8bb495e3f02401ee6f76d1b1d77f3ac9f079e376 (diff) | |
| download | linux-stable-2fd1b487884310d0aa0c0640179dc7490ad86313.tar.gz linux-stable-2fd1b487884310d0aa0c0640179dc7490ad86313.tar.bz2 linux-stable-2fd1b487884310d0aa0c0640179dc7490ad86313.zip | |
Merge tag 'v3.10' into sched/core
Merge in a recent upstream commit:
c2853c8df57f include/linux/math64.h: add div64_ul()
because:
72a4cf20cb71 sched: Change cfs_rq load avg to unsigned long
relies on it.
[ We don't rebase sched/core for this, because the handful of
followup commits after the broken commit are not behavioral
changes so are unlikely to be needed during bisection. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/arm/include/asm/tlb.h')
| -rw-r--r-- | arch/arm/include/asm/tlb.h | 27 |
1 files changed, 4 insertions, 23 deletions
diff --git a/arch/arm/include/asm/tlb.h b/arch/arm/include/asm/tlb.h index 99a19512ee26..bdf2b8458ec1 100644 --- a/arch/arm/include/asm/tlb.h +++ b/arch/arm/include/asm/tlb.h @@ -33,18 +33,6 @@ #include <asm/pgalloc.h> #include <asm/tlbflush.h> -/* - * We need to delay page freeing for SMP as other CPUs can access pages - * which have been removed but not yet had their TLB entries invalidated. - * Also, as ARMv7 speculative prefetch can drag new entries into the TLB, - * we need to apply this same delaying tactic to ensure correct operation. - */ -#if defined(CONFIG_SMP) || defined(CONFIG_CPU_32v7) -#define tlb_fast_mode(tlb) 0 -#else -#define tlb_fast_mode(tlb) 1 -#endif - #define MMU_GATHER_BUNDLE 8 /* @@ -112,12 +100,10 @@ static inline void __tlb_alloc_page(struct mmu_gather *tlb) static inline void tlb_flush_mmu(struct mmu_gather *tlb) { tlb_flush(tlb); - if (!tlb_fast_mode(tlb)) { - free_pages_and_swap_cache(tlb->pages, tlb->nr); - tlb->nr = 0; - if (tlb->pages == tlb->local) - __tlb_alloc_page(tlb); - } + free_pages_and_swap_cache(tlb->pages, tlb->nr); + tlb->nr = 0; + if (tlb->pages == tlb->local) + __tlb_alloc_page(tlb); } static inline void @@ -178,11 +164,6 @@ tlb_end_vma(struct mmu_gather *tlb, struct vm_area_struct *vma) static inline int __tlb_remove_page(struct mmu_gather *tlb, struct page *page) { - if (tlb_fast_mode(tlb)) { - free_page_and_swap_cache(page); - return 1; /* avoid calling tlb_flush_mmu */ - } - tlb->pages[tlb->nr++] = page; VM_BUG_ON(tlb->nr > tlb->max); return tlb->max - tlb->nr; |