@@ -2517,7 +2517,7 @@ int btrfs_update_inode(struct btrfs_trans_handle *trans,
struct inode *inode);
int btrfs_orphan_add(struct btrfs_trans_handle *trans, struct inode *inode);
int btrfs_orphan_del(struct btrfs_trans_handle *trans, struct inode *inode);
-void btrfs_orphan_cleanup(struct btrfs_root *root);
+int btrfs_orphan_cleanup(struct btrfs_root *root);
void btrfs_orphan_pre_snapshot(struct btrfs_trans_handle *trans,
struct btrfs_pending_snapshot *pending,
u64 *bytes_to_reserve);
@@ -2053,8 +2053,12 @@ struct btrfs_root *open_ctree(struct super_block *sb,
if (!(sb->s_flags & MS_RDONLY)) {
down_read(&fs_info->cleanup_work_sem);
- btrfs_orphan_cleanup(fs_info->fs_root);
- btrfs_orphan_cleanup(fs_info->tree_root);
+ err = btrfs_orphan_cleanup(fs_info->fs_root);
+ if (err)
+ goto fail_trans_kthread;
+ err = btrfs_orphan_cleanup(fs_info->tree_root);
+ if (err)
+ goto fail_trans_kthread;
up_read(&fs_info->cleanup_work_sem);
}
@@ -2430,8 +2434,12 @@ int btrfs_cleanup_fs_roots(struct btrfs_fs_info *fs_info)
root_objectid = gang[ret - 1]->root_key.objectid + 1;
for (i = 0; i < ret; i++) {
+ int err;
+
root_objectid = gang[i]->root_key.objectid;
- btrfs_orphan_cleanup(gang[i]);
+ err = btrfs_orphan_cleanup(gang[i]);
+ if (err)
+ return err;
}
root_objectid++;
}
@@ -7604,7 +7604,8 @@ int btrfs_cleanup_reloc_trees(struct btrfs_root *root)
reloc_root = btrfs_read_fs_root_no_name(root->fs_info, &location);
BUG_ON(!reloc_root);
- btrfs_orphan_cleanup(reloc_root);
+ ret = btrfs_orphan_cleanup(reloc_root);
+ BUG_ON(ret);
return 0;
}
@@ -2278,7 +2278,7 @@ int btrfs_orphan_del(struct btrfs_trans_handle *trans, struct inode *inode)
* this cleans up any orphans that may be left on the list from the last use
* of this root.
*/
-void btrfs_orphan_cleanup(struct btrfs_root *root)
+int btrfs_orphan_cleanup(struct btrfs_root *root)
{
struct btrfs_path *path;
struct extent_buffer *leaf;
@@ -2288,10 +2288,13 @@ void btrfs_orphan_cleanup(struct btrfs_root *root)
int ret = 0, nr_unlink = 0, nr_truncate = 0;
if (cmpxchg(&root->orphan_cleanup_state, 0, ORPHAN_CLEANUP_STARTED))
- return;
+ return 0;
path = btrfs_alloc_path();
- BUG_ON(!path);
+ if (!path) {
+ ret = -ENOMEM;
+ goto out;
+ }
path->reada = -1;
key.objectid = BTRFS_ORPHAN_OBJECTID;
@@ -2300,11 +2303,8 @@ void btrfs_orphan_cleanup(struct btrfs_root *root)
while (1) {
ret = btrfs_search_slot(NULL, root, &key, path, 0, 0);
- if (ret < 0) {
- printk(KERN_ERR "Error searching slot for orphan: %d"
- "\n", ret);
- break;
- }
+ if (ret < 0)
+ goto out;
/*
* if ret == 0 means we found what we were searching for, which
@@ -2339,7 +2339,10 @@ void btrfs_orphan_cleanup(struct btrfs_root *root)
found_key.type = BTRFS_INODE_ITEM_KEY;
found_key.offset = 0;
inode = btrfs_iget(root->fs_info->sb, &found_key, root, NULL);
- BUG_ON(IS_ERR(inode));
+ if (IS_ERR(inode)) {
+ ret = PTR_ERR(inode);
+ goto out;
+ }
/*
* add this inode to the orphan list so btrfs_orphan_del does
@@ -2357,6 +2360,10 @@ void btrfs_orphan_cleanup(struct btrfs_root *root)
*/
if (is_bad_inode(inode)) {
trans = btrfs_start_transaction(root, 0);
+ if (IS_ERR(trans)) {
+ ret = PTR_ERR(trans);
+ goto out;
+ }
btrfs_orphan_del(trans, inode);
btrfs_end_transaction(trans, root);
iput(inode);
@@ -2371,16 +2378,16 @@ void btrfs_orphan_cleanup(struct btrfs_root *root)
continue;
}
nr_truncate++;
- btrfs_truncate(inode);
+ ret = btrfs_truncate(inode);
} else {
nr_unlink++;
}
/* this will do delete_inode and everything for us */
iput(inode);
+ if (ret)
+ goto out;
}
- btrfs_free_path(path);
-
root->orphan_cleanup_state = ORPHAN_CLEANUP_DONE;
if (root->orphan_block_rsv)
@@ -2389,13 +2396,20 @@ void btrfs_orphan_cleanup(struct btrfs_root *root)
if (root->orphan_block_rsv || root->orphan_item_inserted) {
trans = btrfs_join_transaction(root, 1);
- btrfs_end_transaction(trans, root);
+ if (!IS_ERR(trans))
+ btrfs_end_transaction(trans, root);
}
if (nr_unlink)
printk(KERN_INFO "btrfs: unlinked %d orphans\n", nr_unlink);
if (nr_truncate)
printk(KERN_INFO "btrfs: truncated %d orphans\n", nr_truncate);
+
+out:
+ if (ret)
+ printk(KERN_CRIT "btrfs: could not do orphan cleanup %d\n", ret);
+ btrfs_free_path(path);
+ return ret;
}
/*
@@ -4148,8 +4162,10 @@ struct inode *btrfs_lookup_dentry(struct inode *dir, struct dentry *dentry)
if (root != sub_root) {
down_read(&root->fs_info->cleanup_work_sem);
if (!(inode->i_sb->s_flags & MS_RDONLY))
- btrfs_orphan_cleanup(sub_root);
+ ret = btrfs_orphan_cleanup(sub_root);
up_read(&root->fs_info->cleanup_work_sem);
+ if (ret)
+ inode = ERR_PTR(ret);
}
return inode;
@@ -409,7 +409,9 @@ static int create_snapshot(struct btrfs_root *root, struct dentry *dentry,
if (ret)
goto fail;
- btrfs_orphan_cleanup(pending_snapshot->snap);
+ ret = btrfs_orphan_cleanup(pending_snapshot->snap);
+ if (ret)
+ goto fail;
parent = dget_parent(dentry);
inode = btrfs_lookup_dentry(parent->d_inode, dentry);
@@ -4174,7 +4174,7 @@ out:
if (IS_ERR(fs_root))
err = PTR_ERR(fs_root);
else
- btrfs_orphan_cleanup(fs_root);
+ err = btrfs_orphan_cleanup(fs_root);
}
return err;
}