diff options
| author | Paul E. McKenney <[email protected]> | 2024-06-18 10:40:30 -0700 |
|---|---|---|
| committer | Neeraj Upadhyay <[email protected]> | 2024-07-29 07:43:06 +0530 |
| commit | 3471e96bcf53731639587580fd02e5a297940b91 (patch) | |
| tree | cb0ee04f2d5bba89fd22511f4007d16194a9a80f | |
| parent | 8400291e289ee6b2bf9779ff1c83a291501f017b (diff) | |
rcu/kfree: Warn on unexpected tail state
Within the rcu_sr_normal_gp_cleanup_work() function, there is an acquire
load from rcu_state.srs_done_tail, which is expected to be non-NULL.
This commit adds a WARN_ON_ONCE() to check this expectation.
Signed-off-by: Paul E. McKenney <[email protected]>
Signed-off-by: Neeraj Upadhyay <[email protected]>
| -rw-r--r-- | kernel/rcu/tree.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c index e641cc681901..0f41a81138dc 100644 --- a/kernel/rcu/tree.c +++ b/kernel/rcu/tree.c @@ -1649,7 +1649,7 @@ static void rcu_sr_normal_gp_cleanup_work(struct work_struct *work) * the done tail list manipulations are protected here. */ done = smp_load_acquire(&rcu_state.srs_done_tail); - if (!done) + if (WARN_ON_ONCE(!done)) return; WARN_ON_ONCE(!rcu_sr_is_wait_head(done)); |