Author: markj
Date: Wed Aug 28 16:16:35 2019
New Revision: 351571
URL: https://svnweb.freebsd.org/changeset/base/351571
Log:
MFC r351331:
Don't requeue active pages in vm_swapout_object_deactivate_pages().
Modified:
stable/12/sys/vm/vm_swapout.c
Directory Properties:
stable/12/ (props changed)
Modified: stable/12/sys/vm/vm_swapout.c
==============================================================================
--- stable/12/sys/vm/vm_swapout.c Wed Aug 28 16:16:14 2019
(r351570)
+++ stable/12/sys/vm/vm_swapout.c Wed Aug 28 16:16:35 2019
(r351571)
@@ -227,20 +227,22 @@ vm_swapout_object_deactivate_pages(pmap_t pmap, vm_obj
vm_page_activate(p);
p->act_count += act_delta;
} else if (vm_page_active(p)) {
+ /*
+ * The page daemon does not requeue pages
+ * after modifying their activation count.
+ */
if (act_delta == 0) {
p->act_count -= min(p->act_count,
ACT_DECLINE);
if (!remove_mode && p->act_count == 0) {
pmap_remove_all(p);
vm_page_deactivate(p);
- } else
- vm_page_requeue(p);
+ }
} else {
vm_page_activate(p);
if (p->act_count < ACT_MAX -
ACT_ADVANCE)
p->act_count += ACT_ADVANCE;
- vm_page_requeue(p);
}
} else if (vm_page_inactive(p))
pmap_remove_all(p);
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