| commit | 83c22520c51bf67529367e8237f95c03fe44e2da | |
| author | Oleg Nesterov <oleg@tv-sign.ru> | |
| Wed, 9 May 2007 09:33:54 +0000 (9 02:33 -0700) | ||
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | |
| Wed, 9 May 2007 19:30:51 +0000 (9 12:30 -0700) | ||
| tree | d9798e4f60551bdad0f7d8f1f1d5c69d7c4214c1 | treesnapshot (tar.gz zip) |
| parent | edab2516a6c1752e8e5e3d55727cabf12346e5df | commitdiff |
flush_cpu_workqueue: don't flush an empty ->worklist
Now when we have ->current_work we can avoid adding a barrier and waiting
for its completition when cwq's queue is empty.
Note: this change is also useful if we change flush_workqueue() to also
check the dead CPUs.
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Srivatsa Vaddagiri <vatsa@in.ibm.com>
Cc: Gautham Shenoy <ego@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Now when we have ->current_work we can avoid adding a barrier and waiting
for its completition when cwq's queue is empty.
Note: this change is also useful if we change flush_workqueue() to also
check the dead CPUs.
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Srivatsa Vaddagiri <vatsa@in.ibm.com>
Cc: Gautham Shenoy <ego@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| kernel/workqueue.c | diffblobblamehistory |