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| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2016-03-17 14:18:56 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-03-17 15:09:34 -0700 |
| commit | 458aa76d132dc1c3c60be0f0db99bcc0ce1767fc (patch) | |
| tree | 58fcb5267a2f29c553479af3ab43968522e2cf7a /mm/pgtable-generic.c | |
| parent | bcf6691797f425b301f629bb783b7ff2d0bcfa5a (diff) | |
| download | linux-stable-458aa76d132dc1c3c60be0f0db99bcc0ce1767fc.tar.gz linux-stable-458aa76d132dc1c3c60be0f0db99bcc0ce1767fc.tar.bz2 linux-stable-458aa76d132dc1c3c60be0f0db99bcc0ce1767fc.zip | |
mm/thp/migration: switch from flush_tlb_range to flush_pmd_tlb_range
We remove one instace of flush_tlb_range here. That was added by commit
f714f4f20e59 ("mm: numa: call MMU notifiers on THP migration"). But the
pmdp_huge_clear_flush_notify should have done the require flush for us.
Hence remove the extra flush.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Vineet Gupta <Vineet.Gupta1@synopsys.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/pgtable-generic.c')
| -rw-r--r-- | mm/pgtable-generic.c | 14 |
1 files changed, 0 insertions, 14 deletions
diff --git a/mm/pgtable-generic.c b/mm/pgtable-generic.c index 06a005b979a7..71c5f9109f2a 100644 --- a/mm/pgtable-generic.c +++ b/mm/pgtable-generic.c @@ -84,20 +84,6 @@ pte_t ptep_clear_flush(struct vm_area_struct *vma, unsigned long address, #ifdef CONFIG_TRANSPARENT_HUGEPAGE -#ifndef __HAVE_ARCH_FLUSH_PMD_TLB_RANGE - -/* - * ARCHes with special requirements for evicting THP backing TLB entries can - * implement this. Otherwise also, it can help optimize normal TLB flush in - * THP regime. stock flush_tlb_range() typically has optimization to nuke the - * entire TLB if flush span is greater than a threshold, which will - * likely be true for a single huge page. Thus a single thp flush will - * invalidate the entire TLB which is not desirable. - * e.g. see arch/arc: flush_pmd_tlb_range - */ -#define flush_pmd_tlb_range(vma, addr, end) flush_tlb_range(vma, addr, end) -#endif - #ifndef __HAVE_ARCH_PMDP_SET_ACCESS_FLAGS int pmdp_set_access_flags(struct vm_area_struct *vma, unsigned long address, pmd_t *pmdp, |