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| author | Shaohua Li <shaohua.li@intel.com> | 2012-01-12 17:19:13 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-01-12 20:13:08 -0800 |
| commit | e5591307f0c1eb733d280a0b72473e01d7f88530 (patch) | |
| tree | 3021a7e07c92e63260d1d03f14f34f771399aa92 /mm/huge_memory.c | |
| parent | 569e55900a5c3c30de6e25c3f259ae7c7dbadb96 (diff) | |
| download | lwn-e5591307f0c1eb733d280a0b72473e01d7f88530.tar.gz lwn-e5591307f0c1eb733d280a0b72473e01d7f88530.zip | |
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/huge_memory.c')
| -rw-r--r-- | mm/huge_memory.c | 1 |
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 |