From nobody Tue Feb 10 08:01:15 2026 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 76A65C7EE30 for ; Mon, 22 May 2023 07:45:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232725AbjEVHpV (ORCPT ); Mon, 22 May 2023 03:45:21 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34232 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232673AbjEVHoy (ORCPT ); Mon, 22 May 2023 03:44:54 -0400 Received: from mx.sberdevices.ru (mx.sberdevices.ru [45.89.227.171]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 11A3FB6; Mon, 22 May 2023 00:44:53 -0700 (PDT) Received: from s-lin-edge02.sberdevices.ru (localhost [127.0.0.1]) by mx.sberdevices.ru (Postfix) with ESMTP id B9F285FD53; Mon, 22 May 2023 10:44:50 +0300 (MSK) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sberdevices.ru; s=mail; t=1684741490; bh=3BbsJ5TMl3aSTqlIon+Jbfxl/Far1E+D+4rr7uYhsuk=; h=From:To:Subject:Date:Message-ID:MIME-Version:Content-Type; b=lqvw15LPfzEaL1BzK8IGJMhXFr9hkMGIayN80/EgUyWFuk3qlrbqoJtl3/bTZbRQK 2oezNG9icLHyj8AStDPNHg8/7QYSSqPNSPHyr8v94a2PPyMMtoXvPmPj0ipteWTsp7 kNwSSlRRaDdbG2XRF3s5LuNfW4IzUPPJS7mO/ET4SBmtcCfZGCe6IcNfao8QQe1eaO vuDNoPW3s8tHu6COqxKrt8E2tmSIRjenc3OsaIGXelOWoeaFpk8BAFbe4jNX0O8yFs sf+owYZMFcbXUBKWH+D40MLQ2eoTKWhwrG6Cf4hu+YYi9j32CfSvsSiknxvK+R6Ehw iG13+N51T8i1w== Received: from S-MS-EXCH01.sberdevices.ru (S-MS-EXCH01.sberdevices.ru [172.16.1.4]) by mx.sberdevices.ru (Postfix) with ESMTP; Mon, 22 May 2023 10:44:50 +0300 (MSK) From: Arseniy Krasnov To: Stefan Hajnoczi , Stefano Garzarella , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , "Michael S. Tsirkin" , Jason Wang , Bobby Eshleman CC: , , , , , , , Arseniy Krasnov Subject: [RFC PATCH v3 09/17] vsock: enable SOCK_SUPPORT_ZC bit Date: Mon, 22 May 2023 10:39:42 +0300 Message-ID: <20230522073950.3574171-10-AVKrasnov@sberdevices.ru> X-Mailer: git-send-email 2.35.0 In-Reply-To: <20230522073950.3574171-1-AVKrasnov@sberdevices.ru> References: <20230522073950.3574171-1-AVKrasnov@sberdevices.ru> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Originating-IP: [172.16.1.6] X-ClientProxiedBy: S-MS-EXCH02.sberdevices.ru (172.16.1.5) To S-MS-EXCH01.sberdevices.ru (172.16.1.4) X-KSMG-Rule-ID: 4 X-KSMG-Message-Action: clean X-KSMG-AntiSpam-Status: not scanned, disabled by settings X-KSMG-AntiSpam-Interceptor-Info: not scanned X-KSMG-AntiPhishing: not scanned, disabled by settings X-KSMG-AntiVirus: Kaspersky Secure Mail Gateway, version 1.1.2.30, bases: 2023/05/22 04:49:00 #21364689 X-KSMG-AntiVirus-Status: Clean, skipped Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" This bit is used by io_uring in case of zerocopy tx mode. io_uring code checks, that socket has this feature. This patch sets it in two places: 1) For socket in 'connect()' call. 2) For new socket which is returned by 'accept()' call. Signed-off-by: Arseniy Krasnov --- net/vmw_vsock/af_vsock.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c index dbfe82ee7769..bee1c36dc29f 100644 --- a/net/vmw_vsock/af_vsock.c +++ b/net/vmw_vsock/af_vsock.c @@ -1406,6 +1406,9 @@ static int vsock_connect(struct socket *sock, struct = sockaddr *addr, goto out; } =20 + if (vsock_msgzerocopy_allow(transport)) + set_bit(SOCK_SUPPORT_ZC, &sk->sk_socket->flags); + err =3D vsock_auto_bind(vsk); if (err) goto out; @@ -1560,6 +1563,9 @@ static int vsock_accept(struct socket *sock, struct s= ocket *newsock, int flags, } else { newsock->state =3D SS_CONNECTED; sock_graft(connected, newsock); + if (vsock_msgzerocopy_allow(vconnected->transport)) + set_bit(SOCK_SUPPORT_ZC, + &connected->sk_socket->flags); } =20 release_sock(connected); --=20 2.25.1