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authorShaohua Li <shaohua.li@intel.com>2012-01-12 17:19:13 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-01-12 20:13:08 -0800
commite5591307f0c1eb733d280a0b72473e01d7f88530 (patch)
tree3021a7e07c92e63260d1d03f14f34f771399aa92 /mm
parent569e55900a5c3c30de6e25c3f259ae7c7dbadb96 (diff)
thp: remove unnecessary tlb flush for mprotect
change_protection() will do TLB flush later, don't need duplicate tlb flush. Signed-off-by: Shaohua Li <shaohua.li@intel.com> Reviewed-by: Andrea Arcangeli <aarcange@redhat.com> Cc: David Rientjes <rientjes@google.com> Cc: Johannes Weiner <jweiner@redhat.com> Cc: Minchan Kim <minchan.kim@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/huge_memory.c1
1 files changed, 0 insertions, 1 deletions
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 763711121ef5..964fc5a2edd2 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1145,7 +1145,6 @@ int change_huge_pmd(struct vm_area_struct *vma, pmd_t *pmd,
entry = pmd_modify(entry, newprot);
set_pmd_at(mm, addr, pmd, entry);
spin_unlock(&vma->vm_mm->page_table_lock);
- flush_tlb_range(vma, addr, addr + HPAGE_PMD_SIZE);
ret = 1;
}
} else

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