Lines Matching defs:ref_count

152  *	The ref_count field tracks references to the page.  References that
154  *	counted in the low bits of ref_count.  The containing object's
156  *	ref_count field.  Additionally, the VPRC_BLOCKED bit is used to
162  *	the page is unmapped, its wire count will not increase.  The ref_count
241 	u_int ref_count;		/* page references (A) */
257  * Special bits used in the ref_count field.
259  * ref_count is normally used to count wirings that prevent the page from being
261  * prevent reclamation.  Accesses to the ref_count field must be atomic unless
963 	r = m->ref_count;
964 	while (atomic_fcmpset_int(&m->ref_count, &r, r & (VPRC_BLOCKED |
984 	old = atomic_fetchadd_int(&m->ref_count, -val);
1002 	return (VPRC_WIRE_COUNT(m->ref_count) > 0);