From: Andi Kleen <ak@suse.de>
Date: Tue, 18 Apr 2006 10:35:16 +0000 (+0200)
Subject: [PATCH] x86_64: Increase NUMA hash function nodemap
X-Git-Tag: v2.6.17-rc2~11
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6fa679fdea22cd96287d4aa11ee771bcd46c6dfb;p=linux-2.6

[PATCH] x86_64: Increase NUMA hash function nodemap

Needed for some big Opteron systems to compute a numa hash function
They have more than 12 bits significant address.

TBD switch this over to dynamic allocation or use better hash

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/include/asm-x86_64/mmzone.h b/include/asm-x86_64/mmzone.h
index 6b18cd8f29..6944e7122d 100644
--- a/include/asm-x86_64/mmzone.h
+++ b/include/asm-x86_64/mmzone.h
@@ -12,7 +12,8 @@
 
 #include <asm/smp.h>
 
-#define NODEMAPSIZE 0xfff
+/* Should really switch to dynamic allocation at some point */
+#define NODEMAPSIZE 0x4fff
 
 /* Simple perfect hash to map physical addresses to node numbers */
 struct memnode {