Btrfs-progs: update super fields for space cache

This patch updates the super field to add the cache_generation member.  It also
makes us set it to -1 on mkfs so any new filesystem will get the space cache
stuff turned on.  Thanks,

Signed-off-by: Josef Bacik <josef@redhat.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/utils.c b/utils.c
index 2a15d866..35e17b8b 100644
--- a/utils.c
+++ b/utils.c
@@ -107,6 +107,7 @@ int make_btrfs(int fd, const char *device, const char *label,
 	btrfs_set_super_stripesize(&super, stripesize);
 	btrfs_set_super_csum_type(&super, BTRFS_CSUM_TYPE_CRC32);
 	btrfs_set_super_chunk_root_generation(&super, 1);
+	btrfs_set_super_cache_generation(&super, -1);
 	if (label)
 		strncpy(super.label, label, BTRFS_LABEL_SIZE - 1);