[PATCH V2 01/10] btrfs-progs: handle error if btrfs_write_one_block_group() failed

[damenly.su@gmail.com]

From: Su Yue <Damenly_Su@gmx.com>

Just break loop and return the error code if failed.
Functions in the call chain are able to handle it.

Signed-off-by: Su Yue <Damenly_Su@gmx.com>
Reviewed-by: Qu Wenruo <wqu@suse.com>
---
 extent-tree.c | 4 +++-
 transaction.c | 4 +++-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/extent-tree.c b/extent-tree.c
index 53be4f4c7369..4a3db029e811 100644
--- a/extent-tree.c
+++ b/extent-tree.c
@@ -1596,9 +1596,11 @@ int btrfs_write_dirty_block_groups(struct btrfs_trans_handle *trans)
 
 		cache = (struct btrfs_block_group_cache *)(unsigned long)ptr;
 		ret = write_one_cache_group(trans, path, cache);
+		if (ret)
+			break;
 	}
 	btrfs_free_path(path);
-	return 0;
+	return ret;
 }
 
 static struct btrfs_space_info *__find_space_info(struct btrfs_fs_info *info,
diff --git a/transaction.c b/transaction.c
index 45bb9e1f9de6..c9035c765a74 100644
--- a/transaction.c
+++ b/transaction.c
@@ -77,7 +77,9 @@ static int update_cowonly_root(struct btrfs_trans_handle *trans,
 					&root->root_item);
 		if (ret < 0)
 			return ret;
-		btrfs_write_dirty_block_groups(trans);
+		ret = btrfs_write_dirty_block_groups(trans);
+		if (ret)
+			return ret;
 	}
 	return 0;
 }
-- 
2.21.0 (Apple Git-122.2)