From: Qu Wenruo Date: Fri, 27 Feb 2015 08:24:24 +0000 (+0800) Subject: btrfs: qgroup: Fix dead judgement on qgroup_rescan_leaf() return value. X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=3393168d22fd5f1be5b5429a818c10f642e88ae3;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git btrfs: qgroup: Fix dead judgement on qgroup_rescan_leaf() return value. Old qgroup_rescan_leaf() comment indicates ret == 2 as complete and cleared INCONSISTENT flag. This is not true since it will never return 2, and inside it no codes will clear INCONSISTENT flag. The flag clearance is done in btrfs_qgroup_rescan_work(). This caused the bug that INCONSISTENT flag is never cleared. So change the comment and fix the dead judgment. Signed-off-by: Qu Wenruo Reviewed-by: Josef Bacik Signed-off-by: Chris Mason --- diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c index 4fb9610beec7..44192370310b 100644 --- a/fs/btrfs/qgroup.c +++ b/fs/btrfs/qgroup.c @@ -2560,7 +2560,7 @@ void assert_qgroups_uptodate(struct btrfs_trans_handle *trans) /* * returns < 0 on error, 0 when more leafs are to be scanned. - * returns 1 when done, 2 when done and FLAG_INCONSISTENT was cleared. + * returns 1 when done. */ static int qgroup_rescan_leaf(struct btrfs_fs_info *fs_info, struct btrfs_path *path, @@ -2707,7 +2707,7 @@ out: mutex_lock(&fs_info->qgroup_rescan_lock); fs_info->qgroup_flags &= ~BTRFS_QGROUP_STATUS_FLAG_RESCAN; - if (err == 2 && + if (err > 0 && fs_info->qgroup_flags & BTRFS_QGROUP_STATUS_FLAG_INCONSISTENT) { fs_info->qgroup_flags &= ~BTRFS_QGROUP_STATUS_FLAG_INCONSISTENT; } else if (err < 0) { @@ -2717,7 +2717,7 @@ out: if (err >= 0) { btrfs_info(fs_info, "qgroup scan completed%s", - err == 2 ? " (inconsistency flag cleared)" : ""); + err > 0 ? " (inconsistency flag cleared)" : ""); } else { btrfs_err(fs_info, "qgroup scan failed with %d", err); }