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(parent: 6adc74b) | patch
slow_work_thread() should do the exclusive wait
authorOleg Nesterov <oleg@redhat.com>
Thu, 11 Jun 2009 12:12:55 +0000 (13:12 +0100)
committerLinus Torvalds <torvalds@linux-foundation.org>
Thu, 11 Jun 2009 18:26:38 +0000 (11:26 -0700)
commitb415c49a864dab8ee90713833d642dd461eccae9
treef5e763afdab9a43ff632993d7be49e73d8a6df6ctree | snapshot (tar.gz zip)
parent6adc74b7d03c06a8e15d51fe33c3d924ada9271acommit | diff
slow_work_thread() should do the exclusive wait

slow_work_thread() sleeps on slow_work_thread_wq without WQ_FLAG_EXCLUSIVE,
this means that slow_work_enqueue()->__wake_up(nr_exclusive => 1) wakes up all
kslowd threads.  This is not what we want, so we change slow_work_thread() to
use prepare_to_wait_exclusive() instead.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
kernel/slow-work.c diff | blob | blame | history