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

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 <paulmck@linux.ibm.com>
Cc: Ming Lei <ming.lei@redhat.com>
Cc: Bart Van Assche <bvanassche@acm.org>
Cc: Jens Axboe <axboe@kernel.dk>
Acked-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Paul E. McKenney 2018-11-06 19:22:23 -08:00
parent 0809d95451
commit 36bd1a8e91
1 changed files with 1 additions and 1 deletions
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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; ref->confirm_switch = confirm_switch ?: percpu_ref_noop_confirm_switch;
percpu_ref_get(ref); /* put after confirmation */ 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) static void __percpu_ref_switch_to_percpu(struct percpu_ref *ref)