From patchwork Wed May 30 06:49:10 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Su Yue X-Patchwork-Id: 10437675 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id E265B601D3 for ; Wed, 30 May 2018 06:43:21 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D309B2859F for ; Wed, 30 May 2018 06:43:21 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id C7DD8286C6; Wed, 30 May 2018 06:43:21 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00, MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5DFFD2859F for ; Wed, 30 May 2018 06:43:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S936002AbeE3GnR (ORCPT ); Wed, 30 May 2018 02:43:17 -0400 Received: from mail.cn.fujitsu.com ([183.91.158.132]:64073 "EHLO heian.cn.fujitsu.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S935883AbeE3GnQ (ORCPT ); Wed, 30 May 2018 02:43:16 -0400 X-IronPort-AV: E=Sophos;i="5.43,368,1503331200"; d="scan'208";a="40560435" Received: from bogon (HELO cn.fujitsu.com) ([10.167.33.5]) by heian.cn.fujitsu.com with ESMTP; 30 May 2018 14:43:11 +0800 Received: from G08CNEXCHPEKD03.g08.fujitsu.local (unknown [10.167.33.85]) by cn.fujitsu.com (Postfix) with ESMTP id 4C59E4B41E69 for ; Wed, 30 May 2018 14:43:06 +0800 (CST) Received: from archlinux.g08.fujitsu.local (10.167.226.31) by G08CNEXCHPEKD03.g08.fujitsu.local (10.167.33.89) with Microsoft SMTP Server (TLS) id 14.3.399.0; Wed, 30 May 2018 14:43:06 +0800 From: Su Yue To: CC: Subject: [PATCH v2] btrfs: returns -ENOMEM if path allocation failed in btrfs_cross_ref_exist() Date: Wed, 30 May 2018 14:49:10 +0800 Message-ID: <20180530064910.8724-1-suy.fnst@cn.fujitsu.com> X-Mailer: git-send-email 2.17.0 In-Reply-To: <20180530020752.23788-1-suy.fnst@cn.fujitsu.com> References: <20180530020752.23788-1-suy.fnst@cn.fujitsu.com> MIME-Version: 1.0 X-Originating-IP: [10.167.226.31] X-yoursite-MailScanner-ID: 4C59E4B41E69.AB477 X-yoursite-MailScanner: Found to be clean X-yoursite-MailScanner-From: suy.fnst@cn.fujitsu.com Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP btrfs_alloc_path() may fail due to no enough memory, so let the function return -ENOMEM instead of -ENOENT is better. Signed-off-by: Su Yue Reviewed-by: Nikolay Borisov Reviewed-by: David Sterba --- Changelog: v2: Add commit message to describe the patch. Thanks Nikolay. fs/btrfs/extent-tree.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 44093f92a532..99df6199dffc 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -3311,7 +3311,7 @@ int btrfs_cross_ref_exist(struct btrfs_root *root, u64 objectid, u64 offset, path = btrfs_alloc_path(); if (!path) - return -ENOENT; + return -ENOMEM; do { ret = check_committed_ref(root, path, objectid,