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percpu-refcount: Replace call_rcu_sched() with call_rcu()

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Now that call_rcu()'s callback is not invoked until after all
preempt-disable regions of code have completed (in addition to explicitly
marked RCU read-side critical sections), call_rcu() can be used in place
of call_rcu_sched().  This commit therefore makes that change.

Signed-off-by: Paul E. McKenney <[email protected]>
Cc: Ming Lei <[email protected]>
Cc: Bart Van Assche <[email protected]>
Cc: Jens Axboe <[email protected]>
Acked-by: Tejun Heo <[email protected]>
This commit is contained in:
Paul E. McKenney committed 2018-11-27 09:21:45 -08:00
1 parent 0809d95451
commit 36bd1a8e91
1 file changed
+1 -1
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lib/percpu-refcount.c
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@@ -181,7 +181,7 @@ static void __percpu_ref_switch_to_atomic(struct percpu_ref *ref,
ref->confirm_switch = confirm_switch ?: percpu_ref_noop_confirm_switch;
percpu_ref_get(ref); /* put after confirmation */
call_rcu_sched(&ref->rcu, percpu_ref_switch_to_atomic_rcu);
call_rcu(&ref->rcu, percpu_ref_switch_to_atomic_rcu);
}
static void __percpu_ref_switch_to_percpu(struct percpu_ref *ref)