From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED, USER_AGENT_MUTT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 549CFC43381 for ; Mon, 25 Feb 2019 20:13:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3022420842 for ; Mon, 25 Feb 2019 20:13:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727481AbfBYUNR (ORCPT ); Mon, 25 Feb 2019 15:13:17 -0500 Received: from mail-wr1-f67.google.com ([209.85.221.67]:39788 "EHLO mail-wr1-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726888AbfBYUNR (ORCPT ); Mon, 25 Feb 2019 15:13:17 -0500 Received: by mail-wr1-f67.google.com with SMTP id l5so11387197wrw.6; Mon, 25 Feb 2019 12:13:16 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=wL7LlDtNaW/gEtPVBaNpb38SRitB3f7IDOpvfaOxORg=; b=TO0tf2fT8jwGz1cBfjhMv9kpUs88aDfycyx2t0IaerSm9FbG5g6dVzKuW/C1edLy+h 5AkedRkMpje7XfVpQOMq30bFR3nAeiFZ18GP68pjyvLW/t6Nl96eaI9049O0uAt22q8Z zIbbzBKNz0T5356rDnJaweV6E5W8qz/+wr8akljD0iwl6LoxS3OLJeO1GEnpXAUhd5RN 7pEh/vRhrUbksgw5stA6NQxnKMrBgMsjvRkqzd2NWwueUVZ3wX2lRsaSu6z7lo3TwPSf bFoqVMufsqfHDcF5FcnKW2ajrrmdl4+kOie7YR2iaMoU91UoVSJj1wzeJ4Xk5J3JOIIw Mm1w== X-Gm-Message-State: AHQUAuZhHZh/GOLa2XGNCLAH9mGguOW5pZErDn7ObX3DYQmDo7ew3MbB QwMmQyJC7YX84C3ZFEHrZOg= X-Google-Smtp-Source: AHgI3IYC/Y8Q8TVRx98hHIvp81mQpi+9pOyCdkoShZ2Y+rKO1Lh429ekwMPsoNj1uWs2Imzu6u70SA== X-Received: by 2002:a5d:4d12:: with SMTP id z18mr14152531wrt.115.1551125595555; Mon, 25 Feb 2019 12:13:15 -0800 (PST) Received: from timur-laptop.fritz.box (dslb-146-060-168-212.146.060.pools.vodafone-ip.de. [146.60.168.212]) by smtp.gmail.com with ESMTPSA id o12sm7901437wrw.70.2019.02.25.12.13.14 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Mon, 25 Feb 2019 12:13:15 -0800 (PST) Date: Mon, 25 Feb 2019 21:13:13 +0100 From: Timur Celik To: David Miller Cc: eric.dumazet@gmail.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] tun: remove unnecessary memory barrier Message-ID: <20190225201313.GA30005@timur-laptop.fritz.box> References: <20190223115313.15064-1-mail@timurcelik.de> <20190224.221236.905722532971991928.davem@davemloft.net> <20190225.102548.247362521843809607.davem@davemloft.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190225.102548.247362521843809607.davem@davemloft.net> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Replace set_current_state with __set_current_state since no memory barrier is needed at this point. Signed-off-by: Timur Celik --- drivers/net/tun.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/tun.c b/drivers/net/tun.c index d291762b9e9d..53f4f37b0ffd 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -2185,7 +2185,7 @@ static void *tun_ring_recv(struct tun_file *tfile, int noblock, int *err) schedule(); } - set_current_state(TASK_RUNNING); + __set_current_state(TASK_RUNNING); remove_wait_queue(&tfile->wq.wait, &wait); out: -- 2.20.1