BTRFS_BG_SZ_NONE
bg->size_class = BTRFS_BG_SZ_NONE;
ASSERT(size_class != BTRFS_BG_SZ_NONE);
if (bg->size_class != BTRFS_BG_SZ_NONE) {
enum btrfs_block_group_size_class size_class = BTRFS_BG_SZ_NONE;
if (size_class != BTRFS_BG_SZ_NONE) {
bg->size_class == BTRFS_BG_SZ_NONE)
case BTRFS_BG_SZ_NONE: