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| author | Rik van Riel <riel@redhat.com> | 2010-08-09 17:19:48 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-08-09 20:45:02 -0700 |
| commit | ad8c2ee801ad7a52d919b478d9b2c7b39a72d295 (patch) | |
| tree | bc56cc023da3467447b0aecd30c0516881d53992 /drivers/uio | |
| parent | 51b1bd2ace1595b72956224deda349efa880b693 (diff) | |
| download | linux-ad8c2ee801ad7a52d919b478d9b2c7b39a72d295.tar.gz linux-ad8c2ee801ad7a52d919b478d9b2c7b39a72d295.tar.xz | |
rmap: add exclusive page to private anon_vma on swapin
On swapin it is fairly common for a page to be owned exclusively by one
process. In that case we want to add the page to the anon_vma of that
process's VMA, instead of to the root anon_vma.
This will reduce the amount of rmap searching that the swapout code needs
to do.
Signed-off-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/uio')
0 files changed, 0 insertions, 0 deletions