SPINLOCK_INITIALIZER
SPINLOCK_INITIALIZER(&kmemstat_spin, "malinit");
struct spinlock pmap_spin = SPINLOCK_INITIALIZER(pmap_spin, "pmap_spin");
SPINLOCK_INITIALIZER(&tok_debug_spin, "tok_debug_spin");
static struct spinlock cons_spin = SPINLOCK_INITIALIZER(cons_spin, "cons_spin");
SPINLOCK_INITIALIZER(mbuf_track_spin, "mbuf_track_spin");
SPINLOCK_INITIALIZER(&bounce_map_list_spin, "bounce_map_list_spin");
{ NULL, NULL, SPINLOCK_INITIALIZER(root.spin, "root.spin") }
static struct spinlock swapbp_spin = SPINLOCK_INITIALIZER(&swapbp_spin, "swapbp_spin");
static struct spinlock vm_contig_spin = SPINLOCK_INITIALIZER(&vm_contig_spin, "vm_contig_spin");