d/freebsd-dev
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Closed a small race condition between wiring/unwiring pages that involved

Browse Source 
the page's wire_count.
This commit is contained in:
dg 1998-11-11 15:07:57 +00:00
parent 13c165cf5d
commit a14807b3cf
1 changed files with 4 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
sys/vm/vm_page.c
View File

@ -34,7 +34,7 @@
* SUCH DAMAGE.
*
* from: @(#)vm_page.c 7.4 (Berkeley) 5/7/91
* $Id: vm_page.c,v 1.111 1998/10/28 13:37:02 dg Exp $
* $Id: vm_page.c,v 1.112 1998/10/28 13:41:43 dg Exp $
*/
/*
@ -1230,16 +1230,16 @@ vm_page_wire(m)
{
int s;
s = splvm();
if (m->wire_count == 0) {
s = splvm();
vm_page_unqueue(m);
splx(s);
cnt.v_wire_count++;
if (m->object)
m->object->wire_count++;
}
(*vm_page_queues[PQ_NONE].lcnt)++;
m->wire_count++;
splx(s);
(*vm_page_queues[PQ_NONE].lcnt)++;
vm_page_flag_set(m, PG_MAPPED);
}