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.fnst@xxxxxxxxxxxxxx> Signed-off-by: Dongsheng Yang <yangds.fnst@xxxxxxxxxxxxxx> --- 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 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
