From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.cn.fujitsu.com ([183.91.158.132]:29150 "EHLO heian.cn.fujitsu.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751214AbeEVJrJ (ORCPT ); Tue, 22 May 2018 05:47:09 -0400 From: Gu Jinxiang To: CC: Subject: [PATCH 1/2] btrfs: handle failures of set_extent_bits in add_excluded_extent Date: Tue, 22 May 2018 17:46:50 +0800 Message-ID: <1526982411-9243-1-git-send-email-gujx@cn.fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-btrfs-owner@vger.kernel.org List-ID: set_extent_bits may return 0/-EEXIST, so return the result in add_excluded_extent. Signed-off-by: Gu Jinxiang --- fs/btrfs/extent-tree.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 75cfb80d2551..2e85e99b5e6f 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -215,11 +215,16 @@ static int add_excluded_extent(struct btrfs_fs_info *fs_info, u64 start, u64 num_bytes) { u64 end = start + num_bytes - 1; - set_extent_bits(&fs_info->freed_extents[0], + int ret = 0; + + ret = set_extent_bits(&fs_info->freed_extents[0], start, end, EXTENT_UPTODATE); - set_extent_bits(&fs_info->freed_extents[1], + if (ret) + goto out; + ret = set_extent_bits(&fs_info->freed_extents[1], start, end, EXTENT_UPTODATE); - return 0; +out: + return ret; } static void free_excluded_extents(struct btrfs_fs_info *fs_info, -- 1.9.1