btrfs-progs: make it static if function isn't called outside

Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <clm@fb.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/disk-io.c b/disk-io.c
index 7ad2cc27..dc84a468 100644
--- a/disk-io.c
+++ b/disk-io.c
@@ -344,7 +344,7 @@ int write_and_map_eb(struct btrfs_trans_handle *trans,
 	return 0;
 }
 
-int write_tree_block(struct btrfs_trans_handle *trans,
+static int write_tree_block(struct btrfs_trans_handle *trans,
 		     struct btrfs_root *root,
 		     struct extent_buffer *eb)
 {