Commit 51959d85 authored Nov 06, 2018 by Paul E. McKenney

lockdep: Replace synchronize_sched() with synchronize_rcu()

Now that synchronize_rcu() waits for preempt-disable regions of code
as well as RCU read-side critical sections, synchronize_sched() can be
replaced by synchronize_rcu().  This commit therefore makes this change.

Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Will Deacon <will.deacon@arm.com>

parent ae8b7ce7

kernel/locking/lockdep.c

+1 −1

Original line number	Original line	Diff line number	Diff line
	@@ -4195,7 +4195,7 @@ void lockdep_free_key_range(void *start, unsigned long size)
	*		*
	* sync_sched() is sufficient because the read-side is IRQ disable.		* sync_sched() is sufficient because the read-side is IRQ disable.
	*/		*/
	synchronize_sched();		synchronize_rcu();

	/*		/*
	* XXX at this point we could return the resources to the pool;		* XXX at this point we could return the resources to the pool;