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inetpeer: replace call_rcu by kfree_rcu for simple kmem_cache_free callback

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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 <Julia.Lawall@inria.fr>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Acked-by: Paul E. McKenney <paulmck@kernel.org>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Link: https://patch.msgid.link/20241013201704.49576-4-Julia.Lawall@inria.fr
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Julia Lawall 2024-10-13 22:16:50 +02:00 committed by Jakub Kicinski
parent 497e17d807
commit bb5810d423
1 changed files with 2 additions and 7 deletions
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9
net/ipv4/inetpeer.c
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@ -128,11 +128,6 @@ static struct inet_peer *lookup(const struct inetpeer_addr *daddr,
return NULL; return NULL;
} }
static void inetpeer_free_rcu(struct rcu_head *head)
{
kmem_cache_free(peer_cachep, container_of(head, struct inet_peer, rcu));
}
/* perform garbage collect on all items stacked during a lookup */ /* perform garbage collect on all items stacked during a lookup */
static void inet_peer_gc(struct inet_peer_base *base, static void inet_peer_gc(struct inet_peer_base *base,
struct inet_peer *gc_stack[], struct inet_peer *gc_stack[],
@ -168,7 +163,7 @@ static void inet_peer_gc(struct inet_peer_base *base,
if (p) { if (p) {
rb_erase(&p->rb_node, &base->rb_root); rb_erase(&p->rb_node, &base->rb_root);
base->total--; base->total--;
call_rcu(&p->rcu, inetpeer_free_rcu); kfree_rcu(p, rcu);
} }
} }
} }
@ -242,7 +237,7 @@ void inet_putpeer(struct inet_peer *p)
WRITE_ONCE(p->dtime, (__u32)jiffies); WRITE_ONCE(p->dtime, (__u32)jiffies);
if (refcount_dec_and_test(&p->refcnt)) if (refcount_dec_and_test(&p->refcnt))
call_rcu(&p->rcu, inetpeer_free_rcu); kfree_rcu(p, rcu);
} }
EXPORT_SYMBOL_GPL(inet_putpeer); EXPORT_SYMBOL_GPL(inet_putpeer);