btrfs-progs: Change btrfs_root to btrfs_fs_info argument in btrfs_lookup_extent_info

That function really wants an fs_info and not a root. Accidentally,
this also makes the kernel/user space signatures to be coherent.

Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: Su Yue <suy.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/ctree.c b/ctree.c
index e79d7aa3..c89fd11f 100644
--- a/ctree.c
+++ b/ctree.c
@@ -192,7 +192,8 @@ static noinline int update_ref_for_cow(struct btrfs_trans_handle *trans,
 	 */
 
 	if (btrfs_block_can_be_shared(root, buf)) {
-		ret = btrfs_lookup_extent_info(trans, root, buf->start,
+		ret = btrfs_lookup_extent_info(trans, trans->fs_info,
+					       buf->start,
 					       btrfs_header_level(buf), 1,
 					       &refs, &flags);
 		BUG_ON(ret);