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Code Issues Releases Activity

Modify a threshold for waking up the pageout daemon. Also, add a consistancy

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check for making sure that held pages aren't freed (DG).
This commit is contained in:
John Dyson 1996-03-09 06:56:39 +00:00
parent c68f9c929b
commit 9ee58740bc
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=14431
1 changed files with 7 additions and 3 deletions
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10
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 1.47 1996/01/27 00:13:33 bde Exp $
* $Id: vm_page.c,v 1.48 1996/03/02 02:54:24 dyson Exp $
*/
/*
@ -535,7 +535,7 @@ vm_page_unqueue(vm_page_t m)
--(*vm_page_queues[queue].cnt);
if (queue == PQ_CACHE) {
if ((cnt.v_cache_count + cnt.v_free_count) <
(cnt.v_free_min + cnt.v_cache_min))
(cnt.v_free_reserved + cnt.v_cache_min))
pagedaemon_wakeup();
}
return;
@ -680,7 +680,7 @@ vm_page_alloc(object, pindex, page_req)
* we would be nearly out of memory.
*/
if (((cnt.v_free_count + cnt.v_cache_count) <
(cnt.v_free_min + cnt.v_cache_min)) ||
(cnt.v_free_reserved + cnt.v_cache_min)) ||
(cnt.v_free_count < cnt.v_pageout_free_min))
pagedaemon_wakeup();
@ -823,6 +823,10 @@ vm_page_free(m)
panic("vm_page_free: freeing busy page");
}
if (m->hold_count) {
panic("freeing held page, count=%d", m->hold_count);
}
vm_page_remove(m);
vm_page_unqueue(m);