diff options
| author | Pavel Machek <pavel@suse.cz> | 2006-08-08 11:58:01 +0200 |
|---|---|---|
| committer | Adrian Bunk <bunk@stusta.de> | 2006-08-08 11:58:01 +0200 |
| commit | d92165febdccd522e2a8b55008ffdb0ed121141a (patch) | |
| tree | afa5d789c3ac2e1fecaf90a231edab43b03f0672 /mm/mlock.c | |
| parent | 3d6cf29b3f117605c66583b9145f53d39c695a6e (diff) | |
pdflush: handle resume wakeups
2.6.16 needs this. It was merged into 2.6.18-rc1.
pdflush is carefully designed to ensure that all wakeups have some
corresponding work to do - if a woken-up pdflush thread discovers that
it hasn't been given any work to do then this is considered an error.
That all broke when swsusp came along - because a timer-delivered
wakeup to a frozen pdflush thread will just get lost. This causes the
pdflush thread to get lost as well: the writeback timer is supposed to
be re-armed by pdflush in process context, but pdflush doesn't execute
the callout which does this.
Fix that up by ignoring the return value from try_to_freeze(): jsut
proceed, see if we have any work pending and only go back to sleep if
that is not the case.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Diffstat (limited to 'mm/mlock.c')
0 files changed, 0 insertions, 0 deletions