6.9-stable review patch. If anyone has any objections, please let me know.
------------------
From: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
commit 0e39c9e524479b85c1b83134df0cfc6e3cb5353a upstream.
The "i++" was accidentally left out so it just sets qgids[0] over and
over.
This can lead to unexpected problems, as the groups[1:] would be all 0,
leading to later find_qgroup_rb() unable to find a qgroup and cause
snapshot creation failure.
Fixes: 5343cd9364ea ("btrfs: qgroup: simple quota auto hierarchy for nested subvolumes")
CC: stable@xxxxxxxxxxxxxxx # 6.7+
Reviewed-by: Qu Wenruo <wqu@xxxxxxxx>
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Reviewed-by: David Sterba <dsterba@xxxxxxxx>
Signed-off-by: David Sterba <dsterba@xxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/btrfs/qgroup.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -3129,7 +3129,7 @@ static int qgroup_auto_inherit(struct bt
qgids = res->qgroups;
list_for_each_entry(qg_list, &inode_qg->groups, next_group)
- qgids[i] = qg_list->group->qgroupid;
+ qgids[i++] = qg_list->group->qgroupid;
*inherit = res;
return 0;
