btrfs-progs: return error from commit_tree_roots()

Errors cow-ing the root block are silently being dropped.  This is
just a step towards error handling because both the caller and calee
assert on errors.

Signed-off-by: Zach Brown <zab@redhat.com>
This commit is contained in:
Zach Brown 2013-01-17 12:06:29 -08:00
parent 52162700bb
commit ea0ac9416f

View File

@ -345,14 +345,17 @@ static int commit_tree_roots(struct btrfs_trans_handle *trans,
struct btrfs_root *root;
struct list_head *next;
struct extent_buffer *eb;
int ret;
if (fs_info->readonly)
return 0;
eb = fs_info->tree_root->node;
extent_buffer_get(eb);
btrfs_cow_block(trans, fs_info->tree_root, eb, NULL, 0, &eb);
ret = btrfs_cow_block(trans, fs_info->tree_root, eb, NULL, 0, &eb);
free_extent_buffer(eb);
if (ret)
return ret;
while(!list_empty(&fs_info->dirty_cowonly_roots)) {
next = fs_info->dirty_cowonly_roots.next;