diff options
| author | Tejun Heo <tj@kernel.org> | 2025-09-21 15:32:40 -1000 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2025-10-22 11:55:06 -1000 |
| commit | e67708823d7362cfbb557008563cce7e7c9c5128 (patch) | |
| tree | 72977b2542c744f0f62304e123d79a106f49ae5a | |
| parent | 987e00035c0e68bc0d44dec811cc9c26310b5bff (diff) | |
sched_ext: Use rhashtable_lookup() instead of rhashtable_lookup_fast()
The find_user_dsq() function is called from contexts that are already
under RCU read lock protection. Switch from rhashtable_lookup_fast() to
rhashtable_lookup() to avoid redundant RCU locking.
Requires: bee8a520eb84 ("rhashtable: Use rcu_dereference_all and rcu_dereference_all_check")
Acked-by: Andrea Righi <arighi@nvidia.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
| -rw-r--r-- | kernel/sched/ext.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/sched/ext.c b/kernel/sched/ext.c index 04079ae4246e..bde49e47f1e4 100644 --- a/kernel/sched/ext.c +++ b/kernel/sched/ext.c @@ -200,7 +200,7 @@ static struct scx_dispatch_q *find_global_dsq(struct scx_sched *sch, static struct scx_dispatch_q *find_user_dsq(struct scx_sched *sch, u64 dsq_id) { - return rhashtable_lookup_fast(&sch->dsq_hash, &dsq_id, dsq_hash_params); + return rhashtable_lookup(&sch->dsq_hash, &dsq_id, dsq_hash_params); } /* |