From: Jay Lan <jlan@sgi.com>
To: Andrew Morton <akpm@osdl.org>
Cc: linux-mm@kvack.org
Subject: [patch] Add support for more than 256 zones
Date: Wed, 13 Aug 2003 13:23:34 -0700 [thread overview]
Message-ID: <3F3A9E46.6010803@sgi.com> (raw)
This patch is to support more than 256 zones for large systems.
The changes is to add #ifdef CONFIG_IA64 to mm.h to give different
#define to ZONE_SHIFT.
Thanks,
- jay lan
diff -urN a-2.5.75/include/linux/mm.h b-2.5.75/include/linux/mm.h
--- a-2.5.75/include/linux/mm.h Thu Jul 10 13:04:45 2003
+++ b-2.5.75/include/linux/mm.h Tue Aug 12 17:20:22 2003
@@ -323,7 +323,11 @@
* sets it, so none of the operations on it need to be atomic.
*/
#define NODE_SHIFT 4
+#ifdef CONFIG_IA64
+#define ZONE_SHIFT (BITS_PER_LONG - 10)
+#else
#define ZONE_SHIFT (BITS_PER_LONG - 8)
+#endif
struct zone;
extern struct zone *zone_table[];
For patch to 2.4.21:
diff -urN a-2.4.21/include/linux/mm.h b-2.4.21/include/linux/mm.h
--- a-2.4.21/include/linux/mm.h Fri Jun 13 07:51:38 2003
+++ b-2.4.21/include/linux/mm.h Tue Aug 12 17:19:27 2003
@@ -321,7 +321,11 @@
* sets it, so none of the operations on it need to be atomic.
*/
#define NODE_SHIFT 4
+#ifdef CONFIG_IA64
+#define ZONE_SHIFT (BITS_PER_LONG - 10)
+#else
#define ZONE_SHIFT (BITS_PER_LONG - 8)
+#endif
struct zone_struct;
extern struct zone_struct *zone_table[];
--
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next reply other threads:[~2003-08-13 20:23 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-08-13 20:23 Jay Lan [this message]
2003-08-13 20:55 ` Andrew Morton
2003-08-13 21:50 ` Martin J. Bligh
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