From patchwork Wed Nov 30 16:57:28 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Howells X-Patchwork-Id: 13060099 X-Patchwork-Delegate: kuba@kernel.org Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 42F23C433FE for ; Wed, 30 Nov 2022 17:00:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230500AbiK3RAv (ORCPT ); Wed, 30 Nov 2022 12:00:51 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44722 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230509AbiK3RAS (ORCPT ); Wed, 30 Nov 2022 12:00:18 -0500 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5AA8B10FDA for ; Wed, 30 Nov 2022 08:57:38 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1669827457; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=5PNaYT+Sz99XRNBjyLDOgrtAK/xBqCVeZx4CGkNAneI=; b=SSlacf02F53wBNabWkQ+BQ/Mb1Wxu56TPaQc02SBUp8L1ph3DpAf7mM04TzBuVVh9tIkMa z3kgHvWEvGNcIYzXwDlo2nSYI0yJJO/TNGLWehSv0JjvYRE5KW7TxsTaC+A6JPG87PrCEs hRHQLUHqN7hXCG71o4U6MsGKt1spABw= Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-120-mVBMQwUBP2i2fCO7O-6Gew-1; Wed, 30 Nov 2022 11:57:32 -0500 X-MC-Unique: mVBMQwUBP2i2fCO7O-6Gew-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 98F9B3C11040; Wed, 30 Nov 2022 16:57:31 +0000 (UTC) Received: from warthog.procyon.org.uk (unknown [10.33.36.36]) by smtp.corp.redhat.com (Postfix) with ESMTP id F327A2166B26; Wed, 30 Nov 2022 16:57:30 +0000 (UTC) Organization: Red Hat UK Ltd. Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SI4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 3798903 Subject: [PATCH net-next 22/35] rxrpc: Don't use sk->sk_receive_queue.lock to guard socket state changes From: David Howells To: netdev@vger.kernel.org Cc: Marc Dionne , linux-afs@lists.infradead.org, dhowells@redhat.com, linux-afs@lists.infradead.org, linux-kernel@vger.kernel.org Date: Wed, 30 Nov 2022 16:57:28 +0000 Message-ID: <166982744839.621383.17007015557156214209.stgit@warthog.procyon.org.uk> In-Reply-To: <166982725699.621383.2358362793992993374.stgit@warthog.procyon.org.uk> References: <166982725699.621383.2358362793992993374.stgit@warthog.procyon.org.uk> User-Agent: StGit/1.5 MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.6 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org Don't use sk->sk_receive_queue.lock to guard socket state changes as the socket mutex is sufficient. Signed-off-by: David Howells cc: Marc Dionne cc: linux-afs@lists.infradead.org --- net/rxrpc/af_rxrpc.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/net/rxrpc/af_rxrpc.c b/net/rxrpc/af_rxrpc.c index 7a0dc01741e7..8ad4d85acb0b 100644 --- a/net/rxrpc/af_rxrpc.c +++ b/net/rxrpc/af_rxrpc.c @@ -812,14 +812,12 @@ static int rxrpc_shutdown(struct socket *sock, int flags) lock_sock(sk); - spin_lock_bh(&sk->sk_receive_queue.lock); if (sk->sk_state < RXRPC_CLOSE) { sk->sk_state = RXRPC_CLOSE; sk->sk_shutdown = SHUTDOWN_MASK; } else { ret = -ESHUTDOWN; } - spin_unlock_bh(&sk->sk_receive_queue.lock); rxrpc_discard_prealloc(rx); @@ -872,9 +870,7 @@ static int rxrpc_release_sock(struct sock *sk) break; } - spin_lock_bh(&sk->sk_receive_queue.lock); sk->sk_state = RXRPC_CLOSE; - spin_unlock_bh(&sk->sk_receive_queue.lock); if (rx->local && rcu_access_pointer(rx->local->service) == rx) { write_lock(&rx->local->services_lock);