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| author |   Jules Irenge <jbi.octave@gmail.com> | 2021-04-29 00:12:19 +0100 |
|---|---|---|
| committer |   Paul E. McKenney <paulmck@kernel.org> | 2021-05-13 09:13:23 -0700 |
| commit | c70360c3343f975bd066b6b98159d93f1bd4219f (patch) | |
| tree | 92fbb94faa019f023ff4521c453bbfb6abbaac67 /kernel/rcu | |
| parent | rcu: Remove obsolete rcu_read_unlock() deadlock commentary (diff) | |
| download | linux-dev-c70360c3343f975bd066b6b98159d93f1bd4219f.tar.xz linux-dev-c70360c3343f975bd066b6b98159d93f1bd4219f.zip | |
rcu: Add missing __releases() annotation
Sparse reports a warning at rcu_print_task_stall():
"warning: context imbalance in rcu_print_task_stall - unexpected unlock"
The root cause is a missing annotation on rcu_print_task_stall().
This commit therefore adds the missing __releases(rnp->lock) annotation.
Signed-off-by: Jules Irenge <jbi.octave@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Diffstat (limited to 'kernel/rcu')
| -rw-r--r-- | kernel/rcu/tree_stall.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/rcu/tree_stall.h b/kernel/rcu/tree_stall.h index e6bd518e0bc4..ffb8cf6c6437 100644 --- a/kernel/rcu/tree_stall.h +++ b/kernel/rcu/tree_stall.h @@ -314,6 +314,7 @@ static void rcu_print_detail_task_stall_rnp(struct rcu_node *rnp) * tasks blocked within RCU read-side critical sections. */ static int rcu_print_task_stall(struct rcu_node *rnp, unsigned long flags) + __releases(rnp->lock) { raw_spin_unlock_irqrestore_rcu_node(rnp, flags); return 0; |