Mechanism to detect low memory and cast out older page

Change-Id: Icce8e01f3d1cd2942f2b9ff802993da0441535ee
Reviewed-on: http://gfw160.austin.ibm.com:8080/gerrit/344
Tested-by: Jenkins Server
Reviewed-by: A. Patrick Williams III <iawillia@us.ibm.com>
Reviewed-by: Douglas R. Gilbert <dgilbert@us.ibm.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/src/kernel/basesegment.C b/src/kernel/basesegment.C
index e59e41753..eab00accc 100644
--- a/src/kernel/basesegment.C
+++ b/src/kernel/basesegment.C
@@ -29,6 +29,7 @@
 #include <kernel/segmentmgr.H>
 #include <kernel/block.H>
 #include <kernel/cpuid.H>
+#include <kernel/console.H>
 
 
 BaseSegment::~BaseSegment()
@@ -147,3 +148,11 @@ int BaseSegment::mmSetPermission(void* i_va, uint64_t i_size,PAGE_PERMISSIONS i_
 {
   return 0;
 }
+
+void BaseSegment::castOutPages(uint64_t i_type)
+{
+    size_t cast_out = 0;
+    cast_out = iv_block->castOutPages(i_type);
+    // Could try again with a more agressive constraint if cast_out == 0 ????
+    if(cast_out) printkd("Cast out %ld pages,Type=%ld\n",cast_out,i_type);
+}