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| author | Andrew Morton <akpm@osdl.org> | 2006-09-25 23:32:44 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-09-26 08:48:58 -0700 |
| commit | 546e0d271941dd1ff6961e2a1f7eac75f1fc277e (patch) | |
| tree | 60c74a9598f7cb4622c1b6acd25df5df67284353 /Documentation/ioctl-number.txt | |
| parent | 8c002494b55119a3fd1dddee83b4fb75cfda47e5 (diff) | |
| download | blackbird-op-linux-546e0d271941dd1ff6961e2a1f7eac75f1fc277e.tar.gz blackbird-op-linux-546e0d271941dd1ff6961e2a1f7eac75f1fc277e.zip | |
[PATCH] swsusp: read speedup
Implement async reads for swsusp resuming.
Crufty old PIII testbox:
15.7 MB/s -> 20.3 MB/s
Sony Vaio:
14.6 MB/s -> 33.3 MB/s
I didn't implement the post-resume bio_set_pages_dirty(). I don't really
understand why resume needs to run set_page_dirty() against these pages.
It might be a worry that this code modifies PG_Uptodate, PG_Error and
PG_Locked against the image pages. Can this possibly affect the resumed-into
kernel? Hopefully not, if we're atomically restoring its mem_map?
Cc: Pavel Machek <pavel@ucw.cz>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Jens Axboe <axboe@suse.de>
Cc: Laurent Riffard <laurent.riffard@free.fr>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'Documentation/ioctl-number.txt')
0 files changed, 0 insertions, 0 deletions
