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posix-timers: Replace call_rcu() by kfree_rcu() for simple kmem_cache_free() callback

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Since SLOB was removed and since commit 6c6c47b063 ("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 <Julia.Lawall@inria.fr>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
Link: https://lore.kernel.org/all/20241013201704.49576-12-Julia.Lawall@inria.fr
This commit is contained in:
Julia Lawall 2024-10-13 22:16:58 +02:00 committed by Thomas Gleixner
parent 1f455f601e
commit 2e529e637c
1 changed files with 1 additions and 8 deletions
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9
kernel/time/posix-timers.c
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@ -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)