On 2017年09月17日 17:02, Sargun Dhillon wrote:
Previously, we were calling del_qgroup_item, and ignoring the return code
resulting in a potential to have divergent in-memory state without an
error. Perhaps, it makes sense to handle this error code, and put the
filesystem into a read only, or similar state.
This patch only adds reporting of the error if the error is fatal,
(any error other than qgroup not found).
Signed-off-by: Sargun Dhillon <sar...@sargun.me>
Looks good to me.
Reviewed-by: Qu Wenruo <quwenruo.bt...@gmx.com>
Thanks,
Qu
---
fs/btrfs/qgroup.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
index 770f667269f5..e172d4843eae 100644
--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -1305,6 +1305,8 @@ int btrfs_remove_qgroup(struct btrfs_trans_handle *trans,
}
}
ret = del_qgroup_item(trans, quota_root, qgroupid);
+ if (ret && ret != -ENOENT)
+ goto out >
while (!list_empty(&qgroup->groups)) {
list = list_first_entry(&qgroup->groups,
--
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