svn commit: r226941 - user/attilio/vmcontention/sys/amd64/amd64
Jeff Roberson
jeff at FreeBSD.org
Sun Oct 30 20:45:27 UTC 2011
Author: jeff
Date: Sun Oct 30 20:45:27 2011
New Revision: 226941
URL: http://svn.freebsd.org/changeset/base/226941
Log:
- Eliminate a use of the splay right link by using the object pointer
for a temporary singly linked list.
Modified:
user/attilio/vmcontention/sys/amd64/amd64/pmap.c
Modified: user/attilio/vmcontention/sys/amd64/amd64/pmap.c
==============================================================================
--- user/attilio/vmcontention/sys/amd64/amd64/pmap.c Sun Oct 30 16:29:04 2011 (r226940)
+++ user/attilio/vmcontention/sys/amd64/amd64/pmap.c Sun Oct 30 20:45:27 2011 (r226941)
@@ -1425,7 +1425,8 @@ pmap_free_zero_pages(vm_page_t free)
while (free != NULL) {
m = free;
- free = m->right;
+ free = (void *)m->object;
+ m->object = NULL;
/* Preserve the page's PG_ZERO setting. */
vm_page_free_toq(m);
}
@@ -1444,7 +1445,7 @@ pmap_add_delayed_free_list(vm_page_t m,
m->flags |= PG_ZERO;
else
m->flags &= ~PG_ZERO;
- m->right = *free;
+ m->object = (void *)*free;
*free = m;
}
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