[PATCH 2/7] btrfs: block-group: use btrfs_for_each_slot in find_first_block_group

[Marcos Paulo de Souza <mpdesouza@suse.com>]

The function can be simplified by using the iterator like macro.

No functional changes.

Signed-off-by: Marcos Paulo de Souza <mpdesouza@suse.com>
---
 fs/btrfs/block-group.c | 33 +++++----------------------------
 1 file changed, 5 insertions(+), 28 deletions(-)

diff --git a/fs/btrfs/block-group.c b/fs/btrfs/block-group.c
index 1f8b06afbd03..0d999a3bfc84 100644
--- a/fs/btrfs/block-group.c
+++ b/fs/btrfs/block-group.c
@@ -1654,38 +1654,15 @@ static int find_first_block_group(struct btrfs_fs_info *fs_info,
 				  struct btrfs_path *path,
 				  struct btrfs_key *key)
 {
-	struct btrfs_root *root = fs_info->extent_root;
-	int ret;
 	struct btrfs_key found_key;
-	struct extent_buffer *leaf;
-	int slot;
-
-	ret = btrfs_search_slot(NULL, root, key, path, 0, 0);
-	if (ret < 0)
-		return ret;
-
-	while (1) {
-		slot = path->slots[0];
-		leaf = path->nodes[0];
-		if (slot >= btrfs_header_nritems(leaf)) {
-			ret = btrfs_next_leaf(root, path);
-			if (ret == 0)
-				continue;
-			if (ret < 0)
-				goto out;
-			break;
-		}
-		btrfs_item_key_to_cpu(leaf, &found_key, slot);
+	int ret;
 
+	btrfs_for_each_slot(fs_info->extent_root, key, &found_key, path, ret) {
 		if (found_key.objectid >= key->objectid &&
-		    found_key.type == BTRFS_BLOCK_GROUP_ITEM_KEY) {
-			ret = read_bg_from_eb(fs_info, &found_key, path);
-			break;
-		}
-
-		path->slots[0]++;
+		    found_key.type == BTRFS_BLOCK_GROUP_ITEM_KEY)
+			return read_bg_from_eb(fs_info, &found_key, path);
 	}
-out:
+
 	return ret;
 }
 
-- 
2.31.1