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([128.93.90.48]) by mail3-relais-sop.national.inria.fr with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Oct 2024 22:18:00 +0200 From: Julia Lawall To: Oliver Hartkopp Cc: kernel-janitors@vger.kernel.org, vbabka@suse.cz, paulmck@kernel.org, Marc Kleine-Budde , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , linux-can@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 10/17] can: gw: replace call_rcu by kfree_rcu for simple kmem_cache_free callback Date: Sun, 13 Oct 2024 22:16:57 +0200 Message-Id: <20241013201704.49576-11-Julia.Lawall@inria.fr> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20241013201704.49576-1-Julia.Lawall@inria.fr> References: <20241013201704.49576-1-Julia.Lawall@inria.fr> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Since SLOB was removed and since commit 6c6c47b063b5 ("mm, slab: call kvfree_rcu_barrier() from kmem_cache_d= estroy()"), 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 Reviewed-by: Vincent Mailhol --- net/can/gw.c | 13 +++---------- 1 file changed, 3 insertions(+), 10 deletions(-) diff --git a/net/can/gw.c b/net/can/gw.c index 37528826935e..ffb9870e2d01 100644 --- a/net/can/gw.c +++ b/net/can/gw.c @@ -577,13 +577,6 @@ static inline void cgw_unregister_filter(struct net *n= et, struct cgw_job *gwj) gwj->ccgw.filter.can_mask, can_can_gw_rcv, gwj); } =20 -static void cgw_job_free_rcu(struct rcu_head *rcu_head) -{ - struct cgw_job *gwj =3D container_of(rcu_head, struct cgw_job, rcu); - - kmem_cache_free(cgw_cache, gwj); -} - static int cgw_notifier(struct notifier_block *nb, unsigned long msg, void *ptr) { @@ -603,7 +596,7 @@ static int cgw_notifier(struct notifier_block *nb, if (gwj->src.dev =3D=3D dev || gwj->dst.dev =3D=3D dev) { hlist_del(&gwj->list); cgw_unregister_filter(net, gwj); - call_rcu(&gwj->rcu, cgw_job_free_rcu); + kfree_rcu(gwj, rcu); } } } @@ -1168,7 +1161,7 @@ static void cgw_remove_all_jobs(struct net *net) hlist_for_each_entry_safe(gwj, nx, &net->can.cgw_list, list) { hlist_del(&gwj->list); cgw_unregister_filter(net, gwj); - call_rcu(&gwj->rcu, cgw_job_free_rcu); + kfree_rcu(gwj, rcu); } } =20 @@ -1236,7 +1229,7 @@ static int cgw_remove_job(struct sk_buff *skb, struct= nlmsghdr *nlh, =20 hlist_del(&gwj->list); cgw_unregister_filter(net, gwj); - call_rcu(&gwj->rcu, cgw_job_free_rcu); + kfree_rcu(gwj, rcu); err =3D 0; break; }