CVS commit: src/sys/uvm

[Joerg Sonnenberger]

Module Name:    src
Committed By:   joerg
Date:           Sat Apr 11 19:24:13 UTC 2015

Modified Files:
        src/sys/uvm: files.uvm uvm_page.c

Log Message:
Allow changing the per-cpu emergency page reservation via kernel config.


To generate a diff of this commit:
cvs rdiff -u -r1.22 -r1.23 src/sys/uvm/files.uvm
cvs rdiff -u -r1.186 -r1.187 src/sys/uvm/uvm_page.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.


Modified files:

Index: src/sys/uvm/files.uvm
diff -u src/sys/uvm/files.uvm:1.22 src/sys/uvm/files.uvm:1.23
--- src/sys/uvm/files.uvm:1.22	Fri Oct 10 09:01:01 2014
+++ src/sys/uvm/files.uvm	Sat Apr 11 19:24:13 2015
@@ -1,10 +1,10 @@
-#	$NetBSD: files.uvm,v 1.22 2014/10/10 09:01:01 uebayasi Exp $
+#	$NetBSD: files.uvm,v 1.23 2015/04/11 19:24:13 joerg Exp $
 
 #
 # UVM options
 # 
 defflag opt_uvmhist.h		UVMHIST UVMHIST_PRINT: KERNHIST
-defflag opt_uvm.h		USE_TOPDOWN_VM UVMMAP_COUNTERS
+defflag opt_uvm.h		USE_TOPDOWN_VM UVMMAP_COUNTERS UVM_RESERVED_PAGES_PER_CPU
 defflag opt_vmswap.h		VMSWAP
 defflag opt_readahead.h		READAHEAD_STATS
 defflag opt_ubc.h		UBC_STATS

Index: src/sys/uvm/uvm_page.c
diff -u src/sys/uvm/uvm_page.c:1.186 src/sys/uvm/uvm_page.c:1.187
--- src/sys/uvm/uvm_page.c:1.186	Fri Sep  5 05:36:21 2014
+++ src/sys/uvm/uvm_page.c	Sat Apr 11 19:24:13 2015
@@ -1,4 +1,4 @@
-/*	$NetBSD: uvm_page.c,v 1.186 2014/09/05 05:36:21 matt Exp $	*/
+/*	$NetBSD: uvm_page.c,v 1.187 2015/04/11 19:24:13 joerg Exp $	*/
 
 /*
  * Copyright (c) 1997 Charles D. Cranor and Washington University.
@@ -66,9 +66,10 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: uvm_page.c,v 1.186 2014/09/05 05:36:21 matt Exp $");
+__KERNEL_RCSID(0, "$NetBSD: uvm_page.c,v 1.187 2015/04/11 19:24:13 joerg Exp $");
 
 #include "opt_ddb.h"
+#include "opt_uvm.h"
 #include "opt_uvmhist.h"
 #include "opt_readahead.h"
 
@@ -107,7 +108,10 @@ bool vm_page_zero_enable = false;
 /*
  * number of pages per-CPU to reserve for the kernel.
  */
-int vm_page_reserve_kernel = 5;
+#ifndef	UVM_RESERVED_PAGES_PER_CPU
+#define	UVM_RESERVED_PAGES_PER_CPU	5
+#endif
+int vm_page_reserve_kernel = UVM_RESERVED_PAGES_PER_CPU;
 
 /*
  * physical memory size;