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authorTejun Heo <tj@kernel.org>2009-01-13 20:41:35 +0900
committerIngo Molnar <mingo@elte.hu>2009-01-16 14:20:03 +0100
commitb12d8db8fbfaed1e8222a15333a3645599636854 (patch)
tree4ae6ce55232885d0707eb464c5b43a54bdfe3ce4 /arch/x86/kernel/cpu/common.c
parent9939ddaff52787b2a7c1adf1b2afc95421aa0884 (diff)
x86: make pda a percpu variable
[ Based on original patch from Christoph Lameter and Mike Travis. ] As pda is now allocated in percpu area, it can easily be made a proper percpu variable. Make it so by defining per cpu symbol from linker script and declaring it in C code for SMP and simply defining it for UP. This change cleans up code and brings SMP and UP closer a bit. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/cpu/common.c')
-rw-r--r--arch/x86/kernel/cpu/common.c3
1 files changed, 0 insertions, 3 deletions
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 7041acdf557..c49498d4083 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -879,9 +879,6 @@ static __init int setup_disablecpuid(char *arg)
__setup("clearcpuid=", setup_disablecpuid);
#ifdef CONFIG_X86_64
-struct x8664_pda *_cpu_pda[NR_CPUS] __read_mostly;
-EXPORT_SYMBOL(_cpu_pda);
-
struct desc_ptr idt_descr = { 256 * 16 - 1, (unsigned long) idt_table };
static char boot_cpu_stack[IRQSTACKSIZE] __page_aligned_bss;