FreeBSD/sys/arm64/arm64/pmap.c
/*
 * Decrements a page table page's wire count, which is used to record the
 * number of valid page table entries within the page.  If the wire count
 * drops to zero, then the page table page is unmapped.  Returns TRUE if the
 * page table page was unmapped and FALSE otherwise.
 */
Decrements a page table page's wire count, which is used to record the
number of valid page table entries within the page.  If the wire count
drops to zero, then the page table page is unmapped.  Returns TRUE if the
page table page was unmapped and FALSE otherwise.
Decrements a page table page ' s wire count which is used to record the number of valid page table entries within the page . If the wire count drops to zero then the page table page is unmapped . Returns TRUE if the page table page was unmapped and FALSE otherwise .
static inline boolean_t
pmap_unwire_l3(pmap_t pmap, vm_offset_t va, vm_page_t m, struct spglist *free)
{
	--m->wire_count;
	if (m->wire_count == 0) {
		_pmap_unwire_l3(pmap, va, m, free);
		return (TRUE);
	} else
		return (FALSE);
}
static inline boolean_t pmap_unwire_l3 ( pmap_t pmap , vm_offset_t va , vm_page_t m , struct spglist * free ) { -- m -> wire_count ; if ( m -> wire_count == 0 ) { _pmap_unwire_l3 ( pmap , va , m , free ) ; return ( TRUE ) ; } else return ( FALSE ) ; }
Decrements a page table page's wire count, which is used to record the
 number of valid page table entries within the page.
Decrements a page table page ' s wire count which is used to record the number of valid page table entries within the page .