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authorOlof Johansson <olof@lixom.net>2013-01-30 10:04:23 -0800
committerOlof Johansson <olof@lixom.net>2013-01-30 10:04:56 -0800
commit3e93093ecd0c144e86a86cc1f165221b6cd3e7fb (patch)
tree0d6dffb90985bd90fd0ca43076a629f12e277096 /fs/btrfs/qgroup.c
parent43243322139194c2fea606095f82498e07536c27 (diff)
parentda660b4a3b15caea9c198c4f26d1cf7023df92fc (diff)
Merge tag 'vexpress/drivers-for-3.9' of git://git.linaro.org/people/pawelmoll/linux into next/drivers
From Pawel Moll: Versatile Express related driver updates for 3.9: * Move sp810 header to a more generic location, mainly to share it with arm64 * tag 'vexpress/drivers-for-3.9' of git://git.linaro.org/people/pawelmoll/linux: arm: Move sp810.h to include/linux/amba/ + Linux 3.8-rc5 Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'fs/btrfs/qgroup.c')
-rw-r--r--fs/btrfs/qgroup.c20
1 files changed, 19 insertions, 1 deletions
diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
index fe9d02c45f8e..a5c856234323 100644
--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -379,6 +379,13 @@ next1:
ret = add_relation_rb(fs_info, found_key.objectid,
found_key.offset);
+ if (ret == -ENOENT) {
+ printk(KERN_WARNING
+ "btrfs: orphan qgroup relation 0x%llx->0x%llx\n",
+ (unsigned long long)found_key.objectid,
+ (unsigned long long)found_key.offset);
+ ret = 0; /* ignore the error */
+ }
if (ret)
goto out;
next2:
@@ -956,17 +963,28 @@ int btrfs_remove_qgroup(struct btrfs_trans_handle *trans,
struct btrfs_fs_info *fs_info, u64 qgroupid)
{
struct btrfs_root *quota_root;
+ struct btrfs_qgroup *qgroup;
int ret = 0;
quota_root = fs_info->quota_root;
if (!quota_root)
return -EINVAL;
+ /* check if there are no relations to this qgroup */
+ spin_lock(&fs_info->qgroup_lock);
+ qgroup = find_qgroup_rb(fs_info, qgroupid);
+ if (qgroup) {
+ if (!list_empty(&qgroup->groups) || !list_empty(&qgroup->members)) {
+ spin_unlock(&fs_info->qgroup_lock);
+ return -EBUSY;
+ }
+ }
+ spin_unlock(&fs_info->qgroup_lock);
+
ret = del_qgroup_item(trans, quota_root, qgroupid);
spin_lock(&fs_info->qgroup_lock);
del_qgroup_rb(quota_root->fs_info, qgroupid);
-
spin_unlock(&fs_info->qgroup_lock);
return ret;