From 3fec7922689a0a58eefd9d984ef6bcd0174804e7 Mon Sep 17 00:00:00 2001
From: "Martin J. Bligh" <mbligh@aracnet.com>
Date: Fri, 2 Jul 2004 20:02:16 -0700
Subject: [PATCH] ia32 NUMA: physnode_map entries can be negative

Based on work from Bill Irwin <wli@holomorphy.com>

physnode_map[] needs to be signed so that pfn_to_nid() can return negative
values used to detect invalid pfn's.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
 include/asm-i386/mmzone.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'include')

diff --git a/include/asm-i386/mmzone.h b/include/asm-i386/mmzone.h
index 3b8e4b7cc7cc..ed348f37eefc 100644
--- a/include/asm-i386/mmzone.h
+++ b/include/asm-i386/mmzone.h
@@ -37,12 +37,12 @@ extern struct pglist_data *node_data[];
 #define MAX_ELEMENTS 256
 #define PAGES_PER_ELEMENT (MAX_NR_PAGES/MAX_ELEMENTS)
 
-extern u8 physnode_map[];
+extern s8 physnode_map[];
 
 static inline int pfn_to_nid(unsigned long pfn)
 {
 #ifdef CONFIG_NUMA
-	return(physnode_map[(pfn) / PAGES_PER_ELEMENT]);
+	return((int) physnode_map[(pfn) / PAGES_PER_ELEMENT]);
 #else
 	return 0;
 #endif
-- 
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