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Implemented cnt.v_reactivated and moved vm_page_activate() routine to

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before vm_page_deactivate().
This commit is contained in:
David Greenman 1995-03-25 08:47:35 +00:00
parent ff93e578a0
commit 7fd9a8b12f
1 changed files with 41 additions and 39 deletions
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80
sys/vm/vm_page.c
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@ -34,7 +34,7 @@
* SUCH DAMAGE.
*
* from: @(#)vm_page.c 7.4 (Berkeley) 5/7/91
* $Id: vm_page.c,v 1.25 1995/03/18 01:04:36 davidg Exp $
* $Id: vm_page.c,v 1.26 1995/03/19 14:29:26 davidg Exp $
*/
/*
@ -885,6 +885,44 @@ vm_page_unwire(mem)
splx(s);
}
/*
* vm_page_activate:
*
* Put the specified page on the active list (if appropriate).
*
* The page queues must be locked.
*/
void
vm_page_activate(m)
register vm_page_t m;
{
int s;
VM_PAGE_CHECK(m);
s = splhigh();
if (m->flags & PG_ACTIVE)
panic("vm_page_activate: already active");
if (m->flags & PG_CACHE)
cnt.v_reactivated++;
vm_page_unqueue(m);
if (m->wire_count == 0) {
TAILQ_INSERT_TAIL(&vm_page_queue_active, m, pageq);
m->flags |= PG_ACTIVE;
TAILQ_REMOVE(&m->object->memq, m, listq);
TAILQ_INSERT_TAIL(&m->object->memq, m, listq);
if (m->act_count < 5)
m->act_count = 5;
else if( m->act_count < ACT_MAX)
m->act_count += 1;
cnt.v_active_count++;
}
splx(s);
}
/*
* vm_page_deactivate:
*
@ -914,6 +952,8 @@ vm_page_deactivate(m)
if (!(m->flags & PG_INACTIVE) && m->wire_count == 0 &&
m->hold_count == 0) {
pmap_clear_reference(VM_PAGE_TO_PHYS(m));
if (m->flags & PG_CACHE)
cnt.v_reactivated++;
vm_page_unqueue(m);
TAILQ_INSERT_TAIL(&vm_page_queue_inactive, m, pageq);
m->flags |= PG_INACTIVE;
@ -928,7 +968,6 @@ vm_page_deactivate(m)
*
* Put the specified page onto the page cache queue (if appropriate).
*/
void
vm_page_cache(m)
register vm_page_t m;
@ -959,42 +998,6 @@ vm_page_cache(m)
splx(s);
}
/*
* vm_page_activate:
*
* Put the specified page on the active list (if appropriate).
*
* The page queues must be locked.
*/
void
vm_page_activate(m)
register vm_page_t m;
{
int s;
VM_PAGE_CHECK(m);
s = splhigh();
if (m->flags & PG_ACTIVE)
panic("vm_page_activate: already active");
vm_page_unqueue(m);
if (m->wire_count == 0) {
TAILQ_INSERT_TAIL(&vm_page_queue_active, m, pageq);
m->flags |= PG_ACTIVE;
TAILQ_REMOVE(&m->object->memq, m, listq);
TAILQ_INSERT_TAIL(&m->object->memq, m, listq);
if (m->act_count < 5)
m->act_count = 5;
else if( m->act_count < ACT_MAX)
m->act_count += 1;
cnt.v_active_count++;
}
splx(s);
}
/*
* vm_page_zero_fill:
*
@ -1002,7 +1005,6 @@ vm_page_activate(m)
* Written as a standard pagein routine, to
* be used by the zero-fill object.
*/
boolean_t
vm_page_zero_fill(m)
vm_page_t m;