From 1132c38927886259c694f77cd74fc577c2216eeb Mon Sep 17 00:00:00 2001 From: Florian Westphal Date: Wed, 22 Jul 2026 12:27:48 +0200 Subject: [PATCH] rhashtable: fix false-positive lockdep splat on rhltable destruction Blamed commit removed ht->mutex usage during destruction but forgot to switch rhashtable_free_one() to rcu_dereference_raw(), this triggers a lockdep splat when an rhltable gets zapped. Fixes: 09ae540e1d5c ("rhashtable: drop ht->mutex in rhashtable_free_and_destroy()") Signed-off-by: Florian Westphal Reviewed-by: Mikhail Gavrilov Signed-off-by: Herbert Xu --- lib/rhashtable.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/rhashtable.c b/lib/rhashtable.c index d459bef245f4..8b2c405e7a66 100644 --- a/lib/rhashtable.c +++ b/lib/rhashtable.c @@ -1261,7 +1261,7 @@ static void rhashtable_free_one(struct rhashtable *ht, struct rhash_head *obj, list = container_of(obj, struct rhlist_head, rhead); do { obj = &list->rhead; - list = rht_dereference(list->next, ht); + list = rcu_dereference_raw(list->next); free_fn(rht_obj(ht, obj), arg); } while (list); } -- 2.47.3