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author | David S. Miller <davem@davemloft.net> | 2013-06-06 23:39:26 -0700 |
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committer | David S. Miller <davem@davemloft.net> | 2013-06-06 23:39:26 -0700 |
commit | 93a306aef5eef70e524500884ccca52c5dd19e17 (patch) | |
tree | 13baf4c01c6cc86c5b5c1294fd0b9d05c85eedce /arch/arm | |
parent | 4df95131ea803bcb94f472d465c73ed57015c470 (diff) | |
parent | 1612e111e4e565422242727efb59499cce8738e4 (diff) | |
download | linux-93a306aef5eef70e524500884ccca52c5dd19e17.tar.gz linux-93a306aef5eef70e524500884ccca52c5dd19e17.tar.bz2 linux-93a306aef5eef70e524500884ccca52c5dd19e17.zip |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Merge 'net' into 'net-next' to get the MSG_CMSG_COMPAT
regression fix.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/arm')
-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; |