btrfs-progs: reduce size of btrfs_path, locks are not used

Size of btrfs_path can be reduced by 32 bytes as we don't use the locks
array, down to 112 from 144 bytes.

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

1 files changed, 3 insertions, 1 deletions

diff --git a/ctree.h b/ctree.h
index 7f25d1e8..52ddd522 100644
--- a/ctree.h
+++ b/ctree.h
@@ -555,8 +555,10 @@ struct btrfs_node {
 struct btrfs_path {
 	struct extent_buffer *nodes[BTRFS_MAX_LEVEL];
 	int slots[BTRFS_MAX_LEVEL];
-	/* if there is real range locking, this locks field will change */
+#if 0
+	/* The kernel locking sheme is not done in userspace. */
 	int locks[BTRFS_MAX_LEVEL];
+#endif
 	int reada;
 	/* keep some upper locks as we walk down */
 	int lowest_level;