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btrfs: qgroup: fix initialization of auto inherit array

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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@vger.kernel.org # 6.7+
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Dan Carpenter 2024-05-04 14:38:41 +03:00 committed by David Sterba
parent bc00965dbf
commit 0e39c9e524
1 changed files with 1 additions and 1 deletions
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2
fs/btrfs/qgroup.c
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@ -3123,7 +3123,7 @@ static int qgroup_auto_inherit(struct btrfs_fs_info *fs_info,
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;