btrfs_limit_group use arg limit to override the old qgroup_limit of
corresponding qgroup. However, we should override part of old qgroup_limit
according to the bit which has been set in arg limit.
Signed-off-by: Fan Chengniang <fancn.f...@cn.fujitsu.com>
Signed-off-by: Dongsheng Yang <yangds.f...@cn.fujitsu.com>
---
fs/btrfs/qgroup.c | 15 ++++++++++-----
1 file changed, 10 insertions(+), 5 deletions(-)
diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
index 953befd..34717ed 100644
--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -1185,11 +1185,16 @@ int btrfs_limit_qgroup(struct btrfs_trans_handle *trans,
}
spin_lock(&fs_info->qgroup_lock);
- qgroup->lim_flags = limit->flags;
- qgroup->max_rfer = limit->max_rfer;
- qgroup->max_excl = limit->max_excl;
- qgroup->rsv_rfer = limit->rsv_rfer;
- qgroup->rsv_excl = limit->rsv_excl;
+ if (limit->flags & BTRFS_QGROUP_LIMIT_MAX_RFER)
+ qgroup->max_rfer = limit->max_rfer;
+ if (limit->flags & BTRFS_QGROUP_LIMIT_MAX_EXCL)
+ qgroup->max_excl = limit->max_excl;
+ if (limit->flags & BTRFS_QGROUP_LIMIT_RSV_RFER)
+ qgroup->rsv_rfer = limit->rsv_rfer;
+ if (limit->flags & BTRFS_QGROUP_LIMIT_RSV_EXCL)
+ qgroup->rsv_excl = limit->rsv_excl;
+ qgroup->lim_flags |= limit->flags;
+
spin_unlock(&fs_info->qgroup_lock);
ret = update_qgroup_limit_item(trans, quota_root, qgroup);
--
1.8.4.2
--
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