diff options
| author | Oleg Nesterov <oleg@tv-sign.ru> | 2007-05-09 02:33:51 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-09 12:30:50 -0700 |
| commit | fc2e4d70410546307344821eed6fd23803a45286 (patch) | |
| tree | b8253b7e42245c9b21b959a77c8070ddcbc9359e /lib | |
| parent | e18f3ffb9c3ddfc1b4ad8f38f5f2acae8c16f0c9 (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 'lib')
0 files changed, 0 insertions, 0 deletions