Function vm_page_alloc

freebsd/vm/vm_page.c:1976–1982

* vm_page_alloc: * * Allocate and return a page that is associated with the specified * object and offset pair. By default, this page is exclusive busied. * * The caller must always specify an allocation class. * * allocation classes: * VM_ALLOC_NORMAL normal process request * VM_ALLOC_SYSTEM system *really* needs a page * VM_ALLOC_INTERRUPT interrupt time request * * optional alloc

 *	VM_ALLOC_ZERO		prefer a zeroed page
 */
vm_page_t
vm_page_alloc(vm_object_t object, vm_pindex_t pindex, int req)
{

	return (vm_page_alloc_after(object, pindex, req, object != NULL ?
	    vm_radix_lookup_le(&object->rtree, pindex) : NULL));
}

vm_page_t
vm_page_alloc_domain(vm_object_t object, vm_pindex_t pindex, int domain,