From c8191ee8e64a8c5c021a34e32868f2380965e82b Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Tue, 23 Sep 2025 09:03:25 -1000 Subject: 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. Acked-by: Andrea Righi Signed-off-by: Tejun Heo --- kernel/sched/ext.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'kernel/sched/ext.c') diff --git a/kernel/sched/ext.c b/kernel/sched/ext.c index f7e17dc0422e..0f17b715461f 100644 --- a/kernel/sched/ext.c +++ b/kernel/sched/ext.c @@ -207,7 +207,7 @@ static struct scx_dispatch_q *find_global_dsq(struct task_struct *p) 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); } /* -- cgit