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authorOleg Nesterov <oleg@tv-sign.ru>2007-05-09 02:33:51 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-09 12:30:50 -0700
commitfc2e4d70410546307344821eed6fd23803a45286 (patch)
treeb8253b7e42245c9b21b959a77c8070ddcbc9359e /include
parente18f3ffb9c3ddfc1b4ad8f38f5f2acae8c16f0c9 (diff)
reimplement flush_workqueue()
Remove ->remove_sequence, ->insert_sequence, and ->work_done from struct cpu_workqueue_struct. To implement flush_workqueue() we can queue a barrier work on each CPU and wait for its completition. The barrier is queued under workqueue_mutex to ensure that per cpu wq->cpu_wq is alive, we drop this mutex before going to sleep. If CPU goes down while we are waiting for completition, take_over_work() will move the barrier on another CPU, and the handler will wake up us eventually. Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions