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workqueue: Use cond_resched_rcu_qs macro 

Tidy up and use cond_resched_rcu_qs when calling cond_resched and
reporting potential quiescent state to RCU.  Splitting this change in
this way allows easy backporting to -stable for kernel versions not
having cond_resched_rcu_qs().

Signed-off-by: Joe Lawrence <joe.lawrence@stratus.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
This commit is contained in:
Joe Lawrence 2014-10-05 13:24:22 -04:00 committed by Paul E. McKenney
parent 789cbbeca4
commit 3e28e37720
1 changed files with 1 additions and 2 deletions
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3
kernel/workqueue.c
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@ -2046,8 +2046,7 @@ __acquires(&pool->lock)
* stop_machine. At the same time, report a quiescent RCU state so
* the same condition doesn't freeze RCU.
*/
rcu_note_voluntary_context_switch(current);
cond_resched();
cond_resched_rcu_qs();
spin_lock_irq(&pool->lock);