From 4ac64e570c337cfbff80f16334b10901168107eb Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Sun, 13 Oct 2024 22:16:55 +0200 Subject: [PATCH] net: bridge: replace call_rcu by kfree_rcu for simple kmem_cache_free callback Since SLOB was removed and since commit 6c6c47b063b5 ("mm, slab: call kvfree_rcu_barrier() from kmem_cache_destroy()"), it is not necessary to use call_rcu when the callback only performs kmem_cache_free. Use kfree_rcu() directly. The changes were made using Coccinelle. Signed-off-by: Julia Lawall Acked-by: Nikolay Aleksandrov Acked-by: Paul E. McKenney Acked-by: Vlastimil Babka Link: https://patch.msgid.link/20241013201704.49576-9-Julia.Lawall@inria.fr Signed-off-by: Jakub Kicinski --- net/bridge/br_fdb.c | 9 +-------- 1 file changed, 1 insertion(+), 8 deletions(-) diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c index 642b8ccaae8ea..1cd7bade9b3ba 100644 --- a/net/bridge/br_fdb.c +++ b/net/bridge/br_fdb.c @@ -73,13 +73,6 @@ static inline int has_expired(const struct net_bridge *br, time_before_eq(fdb->updated + hold_time(br), jiffies); } -static void fdb_rcu_free(struct rcu_head *head) -{ - struct net_bridge_fdb_entry *ent - = container_of(head, struct net_bridge_fdb_entry, rcu); - kmem_cache_free(br_fdb_cache, ent); -} - static int fdb_to_nud(const struct net_bridge *br, const struct net_bridge_fdb_entry *fdb) { @@ -329,7 +322,7 @@ static void fdb_delete(struct net_bridge *br, struct net_bridge_fdb_entry *f, if (test_and_clear_bit(BR_FDB_DYNAMIC_LEARNED, &f->flags)) atomic_dec(&br->fdb_n_learned); fdb_notify(br, f, RTM_DELNEIGH, swdev_notify); - call_rcu(&f->rcu, fdb_rcu_free); + kfree_rcu(f, rcu); } /* Delete a local entry if no other port had the same address.