Function vm_page_wired

freebsd/vm/vm_page.h:978–983

* vm_page_wired: * * Perform a racy check to determine whether a reference prevents the page * from being reclaimable. If the page's object is locked, and the page is * unmapped and exclusively busied by the current thread, no new wirings * may be created. */

 *	may be created.
 */
static inline bool
vm_page_wired(vm_page_t m)
{

	return (VPRC_WIRE_COUNT(m->ref_count) > 0);
}

static inline bool
vm_page_all_valid(vm_page_t m)