Commit 92c0b889 authored Jan 30, 2020 by Jules Irenge Committed by Paul E. McKenney Feb 20, 2020

rcu/nocb: Add missing annotation for rcu_nocb_bypass_unlock()



Sparse reports warning at rcu_nocb_bypass_unlock()

warning: context imbalance in rcu_nocb_bypass_unlock() - unexpected unlock

The root cause is a missing annotation of rcu_nocb_bypass_unlock()
which causes the warning.

This commit therefore adds the missing __releases(&rdp->nocb_bypass_lock)
annotation.

Signed-off-by: Jules Irenge <jbi.octave@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Acked-by: Boqun Feng <boqun.feng@gmail.com>

parent 9ced4548

kernel/rcu/tree_plugin.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -1530,6 +1530,7 @@ static bool rcu_nocb_bypass_trylock(struct rcu_data *rdp)
		* Release the specified rcu_data structure's ->nocb_bypass_lock.
		*/
		static void rcu_nocb_bypass_unlock(struct rcu_data *rdp)
		__releases(&rdp->nocb_bypass_lock)
		{
		lockdep_assert_irqs_disabled();
		raw_spin_unlock(&rdp->nocb_bypass_lock);

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