Changes to make the OOM killer much more effective:

- Allow the OOM killer to target processes currently locked in
  memory.  These very often are the ones doing the memory hogging.
- Drop the wakeup priority of processes currently sleeping while
  waiting for their page fault to complete.  In order for the OOM
  killer to work well, the killed process and other system processes
  waiting on memory must be allowed to wakeup first.

Reviewed by:	dillon
MFC after:	1 week

1 files changed, 2 insertions, 0 deletions

diff --git a/sys/vm/vm_pageout.h b/sys/vm/vm_pageout.h
index bfcfbb1..fc88589 100644
--- a/sys/vm/vm_pageout.h
+++ b/sys/vm/vm_pageout.h
@@ -100,7 +100,9 @@ extern int vm_pageout_deficit;
 
 extern void pagedaemon_wakeup __P((void));
 #define VM_WAIT vm_wait()
+#define VM_WAITPFAULT vm_waitpfault()
 extern void vm_wait __P((void));
+extern void vm_waitpfault __P((void));
 
 #ifdef _KERNEL
 void vm_pageout_page __P((vm_page_t, vm_object_t));