From: Julia Lawall Date: Sun, 13 Oct 2024 20:16:58 +0000 (+0200) Subject: posix-timers: Replace call_rcu() by kfree_rcu() for simple kmem_cache_free() callback X-Git-Tag: v6.13-rc1~171^2~90 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=2e529e637cef39057d9cf199a1ecb915d97ffcd9;p=thirdparty%2Fkernel%2Flinux.git posix-timers: 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 longer 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 Signed-off-by: Thomas Gleixner Reviewed-by: Uladzislau Rezki (Sony) Link: https://lore.kernel.org/all/20241013201704.49576-12-Julia.Lawall@inria.fr --- diff --git a/kernel/time/posix-timers.c b/kernel/time/posix-timers.c index 4576aaed13b23..fc40dacabe782 100644 --- a/kernel/time/posix-timers.c +++ b/kernel/time/posix-timers.c @@ -413,18 +413,11 @@ static struct k_itimer * alloc_posix_timer(void) return tmr; } -static void k_itimer_rcu_free(struct rcu_head *head) -{ - struct k_itimer *tmr = container_of(head, struct k_itimer, rcu); - - kmem_cache_free(posix_timers_cache, tmr); -} - static void posix_timer_free(struct k_itimer *tmr) { put_pid(tmr->it_pid); sigqueue_free(tmr->sigq); - call_rcu(&tmr->rcu, k_itimer_rcu_free); + kfree_rcu(tmr, rcu); } static void posix_timer_unhash_and_free(struct k_itimer *tmr)