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authorRafael J. Wysocki <rjw@sisk.pl>2007-05-06 17:50:48 -0400
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-07 15:12:59 -0400
commitb1296cc48b39355241470ef934a5e2270e3f23bd (patch)
treecfaf24de442b9ce19414f67106461f7c4829a1a7 /COPYING
parentd1d241cc2c5feec057c370aa71637380b1b945d5 (diff)
freezer: fix racy usage of try_to_freeze in kswapd
Currently we can miss freeze_process()->signal_wake_up() in kswapd() if it happens between try_to_freeze() and prepare_to_wait(). To prevent this from happening we should check freezing(current) before calling schedule(). Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Cc: Pavel Machek <pavel@ucw.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'COPYING')
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