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rcu/nocb: Add missing annotation for rcu_nocb_bypass_unlock()

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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>
This commit is contained in:
Jules Irenge 2020-01-30 00:30:09 +00:00 committed by Paul E. McKenney
parent 9ced454807
commit 92c0b889f2
1 changed files with 1 additions and 0 deletions
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kernel/rcu/tree_plugin.h
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@ -1530,6 +1530,7 @@ static bool rcu_nocb_bypass_trylock(struct rcu_data *rdp)
* Release the specified rcu_data structure's ->nocb_bypass_lock. * Release the specified rcu_data structure's ->nocb_bypass_lock.
*/ */
static void rcu_nocb_bypass_unlock(struct rcu_data *rdp) static void rcu_nocb_bypass_unlock(struct rcu_data *rdp)
__releases(&rdp->nocb_bypass_lock)
{ {
lockdep_assert_irqs_disabled(); lockdep_assert_irqs_disabled();
raw_spin_unlock(&rdp->nocb_bypass_lock); raw_spin_unlock(&rdp->nocb_bypass_lock);