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 <wqu@xxxxxxxx> --- 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 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
