Under certain case, btrfs/166 could cause power loss just after quota
tree initialized but rescan not kicked in.
In this case, since flags of qgroup status item is just ON |
INCONSISTENT, without RESCAN flag, rescan won't be kicked in in next
mount.
Now kick in rescan automatically for such situation, so user won't need
to do rescan manually.
Signed-off-by: Qu Wenruo <w...@suse.com>
---
fs/btrfs/qgroup.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
index c25dc47210a3..e62598fc354f 100644
--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -392,6 +392,17 @@ int btrfs_read_qgroup_config(struct btrfs_fs_info *fs_info)
fs_info->qgroup_flags = btrfs_qgroup_status_flags(l,
ptr);
rescan_progress = btrfs_qgroup_status_rescan(l, ptr);
+
+ /*
+ * Qgroup is enabled but rescan hans't kicked in and
+ * power loss happened, kick rescan in
+ */
+ if (rescan_progress == 0 &&
+ (BTRFS_QGROUP_STATUS_FLAG_INCONSISTENT |
+ BTRFS_QGROUP_STATUS_FLAG_ON) ==
+ fs_info->qgroup_flags)
+ fs_info->qgroup_flags |=
+ BTRFS_QGROUP_STATUS_FLAG_RESCAN;
goto next1;
}
--
2.18.0
--
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