| commit | c8236db9cd7aa492dcfcdcca702638e704abed49 | |
| author | Josef Bacik <josef@redhat.com> | |
| Sun, 5 Jul 2009 19:08:18 +0000 (5 12:08 -0700) | ||
| committer | Linus Torvalds <torvalds@linux-foundation.org> | |
| Mon, 6 Jul 2009 20:57:03 +0000 (6 13:57 -0700) | ||
| tree | 75eb83051298fd1f9df426cafaaa6d3c422d1b68 | treesnapshot (tar.gz zip) |
| parent | a65e7bfcd74e4c0939f235d2bf9f48ddb3a57991 | commitdiff |
mm: mark page accessed before we write_end()
In testing a backport of the write_begin/write_end AOPs, a 10% re-read
regression was noticed when running iozone. This regression was
introduced because the old AOPs would always do a mark_page_accessed(page)
after the commit_write, but when the new AOPs where introduced, the only
place this was kept was in pagecache_write_end().
This patch does the same thing in the generic case as what is done in
pagecache_write_end(), which is just to mark the page accessed before we
do write_end().
Signed-off-by: Josef Bacik <jbacik@redhat.com>
Acked-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
In testing a backport of the write_begin/write_end AOPs, a 10% re-read
regression was noticed when running iozone. This regression was
introduced because the old AOPs would always do a mark_page_accessed(page)
after the commit_write, but when the new AOPs where introduced, the only
place this was kept was in pagecache_write_end().
This patch does the same thing in the generic case as what is done in
pagecache_write_end(), which is just to mark the page accessed before we
do write_end().
Signed-off-by: Josef Bacik <jbacik@redhat.com>
Acked-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| mm/filemap.c | diffblobblamehistory |