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authorAndrew Morton <akpm@osdl.org>2006-06-25 14:47:46 +0200
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-25 19:01:06 +0200
commitd616e09ab33aa4d013a93c9b393efd5cebf78521 (patch)
tree13837ef8dc9e955c621d798235c064218b56361d /Makefile
parent[PATCH] cpqarray section fix (diff)
downloadlinux-d616e09ab33aa4d013a93c9b393efd5cebf78521.tar.xz
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[PATCH] pdflush: handle resume wakeups
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>
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