From patchwork Mon Mar 15 05:37:11 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yongji Xie X-Patchwork-Id: 12138345 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 X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT 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 409B9C43331 for ; Mon, 15 Mar 2021 05:38:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2791D61574 for ; Mon, 15 Mar 2021 05:38:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229929AbhCOFiO (ORCPT ); Mon, 15 Mar 2021 01:38:14 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49410 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229924AbhCOFhy (ORCPT ); Mon, 15 Mar 2021 01:37:54 -0400 Received: from mail-pj1-x102c.google.com (mail-pj1-x102c.google.com [IPv6:2607:f8b0:4864:20::102c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 74352C06175F for ; Sun, 14 Mar 2021 22:37:54 -0700 (PDT) Received: by mail-pj1-x102c.google.com with SMTP id kr3-20020a17090b4903b02900c096fc01deso14108268pjb.4 for ; Sun, 14 Mar 2021 22:37:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=aYq0J+9b4tKDZXBHw2wOWvtavxgBRahDPr03liFECw0=; b=puwumHcKmr61wNYUFotpbK2IfHnTbHcpCnzievNuhMmjO4+Eo52l2U71CPjXORPQz0 YWaZVO/rDFNIZGuUgdkCM/DYmhSJACrGuGbgZ96S0h8GYCQo6udNxn/gTu3jjeOrPW7W hVbFsIw4Q4NwTZtm31kC2rzC+rWg9rO4G5tG79ebQG6fU5JB9zEI0EEx75Cx+YFRO6IT As3HPa1UlB63m9oLqpFab0cmMrrodrVeOKP/AkxkFjU5tWMyxjzRvXIYkER++lr4Q7zv l/oDALFuxF6tADxCV5wqSCQc+zPtkKBdt0k5n/nVcBHSOyLMB23OQQcHkXC8zoumc/tL RIAQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=aYq0J+9b4tKDZXBHw2wOWvtavxgBRahDPr03liFECw0=; b=KqeQ0HIJNXBZWwYNCm/tygLl/i5U4jBfmPlmVqTIrsg+z9Uxr8mdjPv3iwHIGUha85 hBsMvupC2Jl6cmgayTzCT8kH9JEyjhDYNYMaXEdsmzw51hoYOJ9cqrfiEzPDInK/fQzi DIy71fBke80eiDys+B7ex2dkWkUsRL8nqzlpI02+Ser6arB5oh7AdQppDcSACfBCLYiR cktvnrk0xQDvLCTRrH7GjmRi6igbghios5bjhO+7Idp0gChhofmT/BGddCSst8b6AEZc pSA8PP0TfJ/9Fby2CQ3i9zQmJjGzKqF4uQUYGLNAXWulF9F1NaCGxgBP2lpIyX10zrlM qCdw== X-Gm-Message-State: AOAM530hC1NUm/m2EXgUlZ632jZSuhvP7Ema4qMg7CjumLUMxKxKNagc Qh39JIEfqMhOg0Ath341akt5 X-Google-Smtp-Source: ABdhPJy4+A1RYkcNV8xwLGkTiZKllYZiilY4Bu0DGetxutWdy9edDqFjAl4qPO0fDEr21OfnR4xE2Q== X-Received: by 2002:a17:902:ecc3:b029:e5:d7cc:2a20 with SMTP id a3-20020a170902ecc3b02900e5d7cc2a20mr9865008plh.11.1615786674068; Sun, 14 Mar 2021 22:37:54 -0700 (PDT) Received: from localhost ([139.177.225.227]) by smtp.gmail.com with ESMTPSA id h16sm8544215pfc.194.2021.03.14.22.37.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 14 Mar 2021 22:37:53 -0700 (PDT) From: Xie Yongji To: mst@redhat.com, jasowang@redhat.com, stefanha@redhat.com, sgarzare@redhat.com, parav@nvidia.com, bob.liu@oracle.com, hch@infradead.org, rdunlap@infradead.org, willy@infradead.org, viro@zeniv.linux.org.uk, axboe@kernel.dk, bcrl@kvack.org, corbet@lwn.net, mika.penttila@nextfour.com, dan.carpenter@oracle.com Cc: virtualization@lists.linux-foundation.org, netdev@vger.kernel.org, kvm@vger.kernel.org, linux-fsdevel@vger.kernel.org Subject: [PATCH v5 01/11] file: Export __receive_fd() to modules Date: Mon, 15 Mar 2021 13:37:11 +0800 Message-Id: <20210315053721.189-2-xieyongji@bytedance.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210315053721.189-1-xieyongji@bytedance.com> References: <20210315053721.189-1-xieyongji@bytedance.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Export __receive_fd() so that some modules can use it to pass file descriptor between processes. Signed-off-by: Xie Yongji --- fs/file.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/file.c b/fs/file.c index dab120b71e44..a2e5bcae63ba 100644 --- a/fs/file.c +++ b/fs/file.c @@ -1107,6 +1107,7 @@ int __receive_fd(int fd, struct file *file, int __user *ufd, unsigned int o_flag __receive_sock(file); return new_fd; } +EXPORT_SYMBOL(__receive_fd); static int ksys_dup3(unsigned int oldfd, unsigned int newfd, int flags) {