lkml.org 
[lkml]   [2003]   [Mar]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[PATCH] 3/6 Convert physnode_map to u8
From Andy Whitcroft

Convert physnode_map from an int to a u8 to save cachelines.

diff -urpN -X /home/fletch/.diff.exclude 013-numa_x86_pc/arch/i386/kernel/numaq.c 014-physnode_map_u8/arch/i386/kernel/numaq.c
--- 013-numa_x86_pc/arch/i386/kernel/numaq.c Wed Mar 5 07:41:52 2003
+++ 014-physnode_map_u8/arch/i386/kernel/numaq.c Wed Mar 5 07:41:55 2003
@@ -64,8 +64,6 @@ static void __init smp_dump_qct(void)
}
}

-extern int physnode_map[];
-
/*
* for each node mark the regions
* TOPOFMEM = hi_shrd_mem_start + hi_shrd_mem_size
diff -urpN -X /home/fletch/.diff.exclude 013-numa_x86_pc/arch/i386/mm/discontig.c 014-physnode_map_u8/arch/i386/mm/discontig.c
--- 013-numa_x86_pc/arch/i386/mm/discontig.c Wed Mar 5 07:41:54 2003
+++ 014-physnode_map_u8/arch/i386/mm/discontig.c Wed Mar 5 07:41:55 2003
@@ -57,7 +57,7 @@ bootmem_data_t node0_bdata;
* physnode_map[4-7] = 1;
* physnode_map[8- ] = -1;
*/
-int physnode_map[MAX_ELEMENTS] = { [0 ... (MAX_ELEMENTS - 1)] = -1};
+u8 physnode_map[MAX_ELEMENTS] = { [0 ... (MAX_ELEMENTS - 1)] = -1};

unsigned long node_start_pfn[MAX_NUMNODES];
unsigned long node_end_pfn[MAX_NUMNODES];
diff -urpN -X /home/fletch/.diff.exclude 013-numa_x86_pc/include/asm-i386/mmzone.h 014-physnode_map_u8/include/asm-i386/mmzone.h
--- 013-numa_x86_pc/include/asm-i386/mmzone.h Wed Mar 5 07:41:54 2003
+++ 014-physnode_map_u8/include/asm-i386/mmzone.h Wed Mar 5 07:41:55 2003
@@ -107,7 +107,7 @@ extern struct pglist_data *node_data[];
#define MAX_ELEMENTS 256
#define PAGES_PER_ELEMENT (MAX_NR_PAGES/MAX_ELEMENTS)

-extern int physnode_map[];
+extern u8 physnode_map[];

static inline int pfn_to_nid(unsigned long pfn)
{
diff -urpN -X /home/fletch/.diff.exclude 013-numa_x86_pc/include/asm-i386/numaq.h 014-physnode_map_u8/include/asm-i386/numaq.h
--- 013-numa_x86_pc/include/asm-i386/numaq.h Wed Mar 5 07:41:52 2003
+++ 014-physnode_map_u8/include/asm-i386/numaq.h Wed Mar 5 07:41:55 2003
@@ -28,8 +28,6 @@

#ifdef CONFIG_X86_NUMAQ

-extern int physnode_map[];
-
#define MAX_NUMNODES 8
extern void get_memcfg_numaq(void);
#define get_memcfg_numa() get_memcfg_numaq()
diff -urpN -X /home/fletch/.diff.exclude 013-numa_x86_pc/include/asm-i386/srat.h 014-physnode_map_u8/include/asm-i386/srat.h
--- 013-numa_x86_pc/include/asm-i386/srat.h Wed Mar 5 07:41:52 2003
+++ 014-physnode_map_u8/include/asm-i386/srat.h Wed Mar 5 07:41:55 2003
@@ -27,7 +27,6 @@
#ifndef _ASM_SRAT_H_
#define _ASM_SRAT_H_

-extern int physnode_map[];
#define MAX_NUMNODES 8
extern void get_memcfg_from_srat(void);
extern unsigned long *get_zholes_size(int);
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:33    [W:0.035 / U:1.568 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site