Messages in this thread Patch in this message | | | Date | Wed, 05 Mar 2003 09:24:54 -0800 | From | "Martin J. Bligh" <> | Subject | [PATCH] 3/6 Convert physnode_map to u8 |
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>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/
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