btrfs: Don't BUG_ON insert errors in btrfs_alloc_dev_extent()

The only caller of btrfs_alloc_dev_extent() is __btrfs_alloc_chunk() which
already bugs on any error returned. We can remove the BUG_ON's in
btrfs_alloc_dev_extent() then since __btrfs_alloc_chunk() will "catch" them
anyway.

Signed-off-by: Mark Fasheh <mfasheh@suse.de>

diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index c4ea7d8..281ff35 100644 (file)
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -1075,7 +1075,8 @@ int btrfs_alloc_dev_extent(struct btrfs_trans_handle *trans,
        key.type = BTRFS_DEV_EXTENT_KEY;
        ret = btrfs_insert_empty_item(trans, root, path, &key,
                                      sizeof(*extent));
-       BUG_ON(ret);
+       if (ret)
+               goto out;
 
        leaf = path->nodes[0];
        extent = btrfs_item_ptr(leaf, path->slots[0],
@@ -1090,6 +1091,7 @@ int btrfs_alloc_dev_extent(struct btrfs_trans_handle *trans,
 
        btrfs_set_dev_extent_length(leaf, extent, num_bytes);
        btrfs_mark_buffer_dirty(leaf);
+out:
        btrfs_free_path(path);
        return ret;
 }