vmap_block
struct vmap_block *vb;
vb = kmalloc_node(sizeof(struct vmap_block), gfp_mask, node);
static void free_vmap_block(struct vmap_block *vb)
struct vmap_block *tmp;
static bool purge_fragmented_block(struct vmap_block *vb,
struct vmap_block *vb, *n_vb;
struct vmap_block *vb;
struct vmap_block *vb;
struct vmap_block *vb;
struct vmap_block *vb;
struct vmap_block *vb;