btrfs-progs: reduce size of btrfs_path::lowest_level

Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/ctree.h b/ctree.h
index df088d1..c75248e 100644 (file)
--- a/ctree.h
+++ b/ctree.h
@@ -561,7 +561,7 @@ struct btrfs_path {
 #endif
        signed char reada;
        /* keep some upper locks as we walk down */
-       int lowest_level;
+       u8 lowest_level;
 
        /*
         * set by btrfs_split_item, tells search_slot to keep all locks