Change schedule_on_each_cpu() to use flush_work() instead of flush_workqueue(),
this way we don't wait for other work_struct's which can be queued meanwhile.
Signed-off-by: Oleg Nesterov <[email protected]>
--- 26-rc2/kernel/workqueue.c~WQ_3_USE_FLUSH_WORK 2008-06-13 17:31:54.000000000 +0400
+++ 26-rc2/kernel/workqueue.c 2008-06-13 17:34:05.000000000 +0400
@@ -653,7 +653,8 @@ int schedule_on_each_cpu(work_func_t fun
set_bit(WORK_STRUCT_PENDING, work_data_bits(work));
__queue_work(per_cpu_ptr(keventd_wq->cpu_wq, cpu), work);
}
- flush_workqueue(keventd_wq);
+ for_each_online_cpu(cpu)
+ flush_work(per_cpu_ptr(works, cpu));
put_online_cpus();
free_percpu(works);
return 0;