toptrace
} *toptrace;
if (toptrace == NULL) {
toptrace = kmem_zalloc((size_t)
(sizeof (struct toptrace) * toptracemax), KM_SLEEP);
toptrace[toptraceindex].dtyp = dtyp;
toptrace[toptraceindex].thread = curthread;
toptrace[toptraceindex].dev = dev;
toptrace[toptraceindex].arg1 = arg1;
toptrace[toptraceindex].arg2 = arg2;
toptrace[toptraceindex].arg3 = arg3;
toptrace[toptraceindex].dtyp = (enum delta_type)-1;
toptrace[toptraceindex].thread = (kthread_t *)-1;
toptrace[toptraceindex].dev = (dev_t)-1;
toptrace[toptraceindex].arg1 = -1;
toptrace[toptraceindex].arg2 = -1;