Function nbufp

freebsd/kern/vfs_bio.c:151–156

buffer header pool */

static char *buf;		/* buffer header pool */
static struct buf *
nbufp(unsigned i)
{
	return ((struct buf *)(buf + (sizeof(struct buf) +
	    sizeof(vm_page_t) * atop(maxbcachebuf)) * i));
}

caddr_t __read_mostly unmapped_buf;