svn commit: r195138 - user/kmacy/releng_7_2_fcs/sys/amd64/amd64
Kip Macy
kmacy at FreeBSD.org
Sun Jun 28 16:34:34 UTC 2009
Author: kmacy
Date: Sun Jun 28 16:34:33 2009
New Revision: 195138
URL: http://svn.freebsd.org/changeset/base/195138
Log:
- add page lock to protect md pv list in pmap_pv_promote_pde
- add pv_lock to protect stats in pmap_remove_pages
Modified:
user/kmacy/releng_7_2_fcs/sys/amd64/amd64/pmap.c
Modified: user/kmacy/releng_7_2_fcs/sys/amd64/amd64/pmap.c
==============================================================================
--- user/kmacy/releng_7_2_fcs/sys/amd64/amd64/pmap.c Sun Jun 28 15:38:50 2009 (r195137)
+++ user/kmacy/releng_7_2_fcs/sys/amd64/amd64/pmap.c Sun Jun 28 16:34:33 2009 (r195138)
@@ -2227,7 +2227,9 @@ pmap_pv_promote_pde(pmap_t pmap, vm_offs
do {
m++;
va += PAGE_SIZE;
+ vm_page_lock(m);
pmap_pvh_free(&m->md, pmap, va, free);
+ vm_page_unlock(m);
} while (va < va_last);
}
@@ -3984,9 +3986,11 @@ restart:
}
/* Mark free */
+ mtx_lock(&pv_lock);
PV_STAT(pv_entry_frees++);
PV_STAT(pv_entry_spare++);
pv_entry_count--;
+ mtx_unlock(&pv_lock);
pc->pc_map[field] |= bitmask;
if ((tpte & PG_PS) != 0) {
pmap->pm_stats.resident_count -= NBPDR / PAGE_SIZE;
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