From patchwork Sun Oct 13 20:17:01 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Julia Lawall X-Patchwork-Id: 13833738 X-Patchwork-Delegate: kuba@kernel.org Received: from mail3-relais-sop.national.inria.fr (mail3-relais-sop.national.inria.fr [192.134.164.104]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BDD401A01BD; Sun, 13 Oct 2024 20:18:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.134.164.104 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728850703; cv=none; b=Xmw+mPrCSZbzH6kmjmWB9oTxdiHhlW17chvd5jZwbsZuBKCFaXfJF0R1ipncDSrl92rI5RK1qWTct+09em+ayX2LLy3s3iilNQZfS+5cJUTWNmqfBWlv46XrLCfhkZ3BPZsegLL5lnONlOPfrjDKMr5T0YsezcgEv7R4nGOZlBM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728850703; c=relaxed/simple; bh=htI9EsWsu8314B/PUvBjBsrP6HkmbEqFi+D8XQiMNkM=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=CFmzpBg03DFGrl/jIMeRGC9+eaMh9OdD/3Ki9lGdxaENualAF3MoKlbjP3Eg6OUUGx45MDn/iwu0dfXBoVO2jAqDfYobdNdHFu7WLmMvs1clf7y3sbOQ2RqLApTGN+iIDa34FpICfvsofB5yFsf2E0ZKxajvr0EiPM3ns3H44Q4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=inria.fr; spf=pass smtp.mailfrom=inria.fr; dkim=pass (1024-bit key) header.d=inria.fr header.i=@inria.fr header.b=BwT0Mkp0; arc=none smtp.client-ip=192.134.164.104 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=inria.fr Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=inria.fr Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=inria.fr header.i=@inria.fr header.b="BwT0Mkp0" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=inria.fr; s=dc; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=R/D7+Ex7Pf63xwXU1HkOBgoErAFQ+xvEU7fj82vnitk=; b=BwT0Mkp0mhBl6ZMiS34UPba1KegNecSUOhYfJgwANrW0fpoepAHB3hov m5lj0bo5QQXLEU5x4d4zFpYJYv1A+sppaYFtGeMw/CZCnjYCZx2URoJjY IJ5T5D1D3Gv8luHTn9zIrHkl98iGA6nd4TijDfHBfd9gsp9yRVsPmps+7 w=; Authentication-Results: mail3-relais-sop.national.inria.fr; dkim=none (message not signed) header.i=none; spf=SoftFail smtp.mailfrom=Julia.Lawall@inria.fr; dmarc=fail (p=none dis=none) d=inria.fr X-IronPort-AV: E=Sophos;i="6.11,201,1725314400"; d="scan'208";a="98968289" Received: from i80.paris.inria.fr (HELO i80.paris.inria.fr.) ([128.93.90.48]) by mail3-relais-sop.national.inria.fr with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Oct 2024 22:18:01 +0200 From: Julia Lawall To: "David S. Miller" Cc: kernel-janitors@vger.kernel.org, vbabka@suse.cz, paulmck@kernel.org, Eric Dumazet , Jakub Kicinski , Paolo Abeni , netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 14/17] kcm: replace call_rcu by kfree_rcu for simple kmem_cache_free callback Date: Sun, 13 Oct 2024 22:17:01 +0200 Message-Id: <20241013201704.49576-15-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: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Patchwork-Delegate: kuba@kernel.org 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 Reviewed-by: Uladzislau Rezki (Sony) --- net/kcm/kcmsock.c | 10 +--------- 1 file changed, 1 insertion(+), 9 deletions(-) diff --git a/net/kcm/kcmsock.c b/net/kcm/kcmsock.c index d4118c796290..24aec295a51c 100644 --- a/net/kcm/kcmsock.c +++ b/net/kcm/kcmsock.c @@ -1584,14 +1584,6 @@ static int kcm_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) return err; } -static void free_mux(struct rcu_head *rcu) -{ - struct kcm_mux *mux = container_of(rcu, - struct kcm_mux, rcu); - - kmem_cache_free(kcm_muxp, mux); -} - static void release_mux(struct kcm_mux *mux) { struct kcm_net *knet = mux->knet; @@ -1619,7 +1611,7 @@ static void release_mux(struct kcm_mux *mux) knet->count--; mutex_unlock(&knet->mutex); - call_rcu(&mux->rcu, free_mux); + kfree_rcu(mux, rcu); } static void kcm_done(struct kcm_sock *kcm)