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| author | Rik van Riel | 2012-10-09 15:31:59 +0200 |
|---|---|---|
| committer | Mel Gorman | 2012-12-11 15:28:34 +0100 |
| commit | 8d1acce4537c4e2f5889ed9ba9b8eddb80d99820 (patch) | |
| tree | 8032b026c25b3394613abde6d0f22529a1ef4e2a /mm/huge_memory.c | |
| parent | x86/mm: Introduce pte_accessible() (diff) | |
| download | kernel-qcow2-linux-8d1acce4537c4e2f5889ed9ba9b8eddb80d99820.tar.gz kernel-qcow2-linux-8d1acce4537c4e2f5889ed9ba9b8eddb80d99820.tar.xz kernel-qcow2-linux-8d1acce4537c4e2f5889ed9ba9b8eddb80d99820.zip | |
mm: Only flush the TLB when clearing an accessible pte
If ptep_clear_flush() is called to clear a page table entry that is
accessible anyway by the CPU, eg. a _PAGE_PROTNONE page table entry,
there is no need to flush the TLB on remote CPUs.
Signed-off-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Link: http://lkml.kernel.org/n/tip-vm3rkzevahelwhejx5uwm8ex@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'mm/huge_memory.c')
0 files changed, 0 insertions, 0 deletions