From b6278470b7cdbf2bf6ba7345130d83924451a51a Mon Sep 17 00:00:00 2001 From: Mike Travis Date: Fri, 19 Oct 2007 20:35:03 +0200 Subject: x86: convert cpu_llc_id to be a per cpu variable Convert cpu_llc_id from a static array sized by NR_CPUS to a per_cpu variable. This saves sizeof(cpu_llc_id) * NR unused cpus. Access is mostly from startup and CPU HOTPLUG functions. Note there's an additional change of the type of cpu_llc_id from int to u8 for ARCH i386 to correspond with the same type in ARCH x86_64. Signed-off-by: Mike Travis Cc: Andi Kleen Cc: Christoph Lameter Cc: "Siddha, Suresh B" Signed-off-by: Andrew Morton Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner --- include/asm-x86/processor_32.h | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'include/asm-x86/processor_32.h') diff --git a/include/asm-x86/processor_32.h b/include/asm-x86/processor_32.h index 83800e7496ee..565b6fc5f5b4 100644 --- a/include/asm-x86/processor_32.h +++ b/include/asm-x86/processor_32.h @@ -110,7 +110,11 @@ extern struct cpuinfo_x86 cpu_data[]; #define current_cpu_data boot_cpu_data #endif -extern int cpu_llc_id[NR_CPUS]; +/* + * the following now lives in the per cpu area: + * extern int cpu_llc_id[NR_CPUS]; + */ +DECLARE_PER_CPU(u8, cpu_llc_id); extern char ignore_fpu_irq; void __init cpu_detect(struct cpuinfo_x86 *c); -- cgit v1.2.3-59-g8ed1b