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| author | KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> | 2012-01-10 15:08:07 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-01-10 16:30:44 -0800 |
| commit | 6bd4837de96e7d9f9bf33e59117c24fc230862ac (patch) | |
| tree | 633d23438e31aeef61063c6de490cc5696f4e5f5 /drivers/md/dm-bufio.c | |
| parent | 948f017b093a9baac23855fcd920d3a970b71bb6 (diff) | |
| download | linux-3.10-6bd4837de96e7d9f9bf33e59117c24fc230862ac.tar.gz linux-3.10-6bd4837de96e7d9f9bf33e59117c24fc230862ac.tar.bz2 linux-3.10-6bd4837de96e7d9f9bf33e59117c24fc230862ac.zip | |
mm: simplify find_vma_prev()
commit 297c5eee37 ("mm: make the vma list be doubly linked") added the
vm_prev member to vm_area_struct. We can simplify find_vma_prev() by
using it. Also, this change helps to improve page fault performance
because it has stronger locality of reference.
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Shaohua Li <shaohua.li@intel.com>
Cc: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/md/dm-bufio.c')
0 files changed, 0 insertions, 0 deletions