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Subject[PATCH 4.9 151/175] btrfs: quota: Set rescan progress to (u64)-1 if we hit last leaf
Date
From: Qu Wenruo <wqu@suse.com>

commoit 6f7de19ed3d4d3526ca5eca428009f97cf969c2f upstream

Commit ff3d27a048d9 ("btrfs: qgroup: Finish rescan when hit the last leaf
of extent tree") added a new exit for rescan finish.

However after finishing quota rescan, we set
fs_info->qgroup_rescan_progress to (u64)-1 before we exit through the
original exit path.
While we missed that assignment of (u64)-1 in the new exit path.

The end result is, the quota status item doesn't have the same value.
(-1 vs the last bytenr + 1)
Although it doesn't affect quota accounting, it's still better to keep
the original behavior.

Reported-by: Misono Tomohiro <misono.tomohiro@jp.fujitsu.com>
Fixes: ff3d27a048d9 ("btrfs: qgroup: Finish rescan when hit the last leaf of extent tree")
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Misono Tomohiro <misono.tomohiro@jp.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/btrfs/qgroup.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -2340,8 +2340,10 @@ out:
}
btrfs_put_tree_mod_seq(fs_info, &tree_mod_seq_elem);

- if (done && !ret)
+ if (done && !ret) {
ret = 1;
+ fs_info->qgroup_rescan_progress.objectid = (u64)-1;
+ }
return ret;
}


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