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authorJeff Mahoney <jeffm@suse.com>2012-03-01 17:24:58 +0100
committerDavid Sterba <dsterba@suse.cz>2012-03-22 01:45:40 +0100
commit49b25e0540904be0bf558b84475c69d72e4de66e (patch)
tree5a89b2f5d6e5bd8b1ff39bdb387071ec1cb2a615 /fs/btrfs/relocation.c
parent4da35113426d16673aa1fb0613c14ca2e419e7fd (diff)
btrfs: enhance transaction abort infrastructure
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Diffstat (limited to 'fs/btrfs/relocation.c')
-rw-r--r--fs/btrfs/relocation.c14
1 files changed, 8 insertions, 6 deletions
diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index a87678ead61..cba7a0bf366 100644
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -4410,7 +4410,7 @@ void btrfs_reloc_pre_snapshot(struct btrfs_trans_handle *trans,
* called after snapshot is created. migrate block reservation
* and create reloc root for the newly created snapshot
*/
-void btrfs_reloc_post_snapshot(struct btrfs_trans_handle *trans,
+int btrfs_reloc_post_snapshot(struct btrfs_trans_handle *trans,
struct btrfs_pending_snapshot *pending)
{
struct btrfs_root *root = pending->root;
@@ -4420,7 +4420,7 @@ void btrfs_reloc_post_snapshot(struct btrfs_trans_handle *trans,
int ret;
if (!root->reloc_root)
- return;
+ return 0;
rc = root->fs_info->reloc_ctl;
rc->merging_rsv_size += rc->nodes_relocated;
@@ -4429,19 +4429,21 @@ void btrfs_reloc_post_snapshot(struct btrfs_trans_handle *trans,
ret = btrfs_block_rsv_migrate(&pending->block_rsv,
rc->block_rsv,
rc->nodes_relocated);
- BUG_ON(ret);
+ if (ret)
+ return ret;
}
new_root = pending->snap;
reloc_root = create_reloc_root(trans, root->reloc_root,
new_root->root_key.objectid);
+ if (IS_ERR(reloc_root))
+ return PTR_ERR(reloc_root);
ret = __add_reloc_root(reloc_root);
BUG_ON(ret < 0);
new_root->reloc_root = reloc_root;
- if (rc->create_reloc_tree) {
+ if (rc->create_reloc_tree)
ret = clone_backref_node(trans, rc, root, reloc_root);
- BUG_ON(ret);
- }
+ return ret;
}