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| author | Andrea Arcangeli <aarcange@redhat.com> | 2011-05-24 17:12:14 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-05-25 08:39:21 -0700 |
| commit | 692e0b35427a088bf75d9363788c61c7edbe93a5 (patch) | |
| tree | db1b4365b70fbe809753e6ac097b60fb4f7299a8 /init/main.c | |
| parent | 9547d01bfb9c351dc19067f8a4cea9d3955f4125 (diff) | |
| download | lwn-692e0b35427a088bf75d9363788c61c7edbe93a5.tar.gz lwn-692e0b35427a088bf75d9363788c61c7edbe93a5.zip | |
mm: thp: optimize memcg charge in khugepaged
We don't need to hold the mmmap_sem through mem_cgroup_newpage_charge(),
the mmap_sem is only hold for keeping the vma stable and we don't need the
vma stable anymore after we return from alloc_hugepage_vma().
Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <jweiner@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: David Rientjes <rientjes@google.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 'init/main.c')
0 files changed, 0 insertions, 0 deletions