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| author | Jeremy Fitzhardinge <jeremy@goop.org> | 2006-12-07 02:14:03 +0100 |
|---|---|---|
| committer | Andi Kleen <andi@basil.nowhere.org> | 2006-12-07 02:14:03 +0100 |
| commit | b2938f880890ebfcccad356275e0000193153623 (patch) | |
| tree | f2dcde93e6bd449369e4d305f081e9c12af99948 /arch/i386/kernel/cpu/common.c | |
| parent | 49d26b6eaa8e970c8cf6e299e6ccba2474191bf5 (diff) | |
| download | linux-b2938f880890ebfcccad356275e0000193153623.tar.gz linux-b2938f880890ebfcccad356275e0000193153623.tar.bz2 linux-b2938f880890ebfcccad356275e0000193153623.zip | |
[PATCH] i386: Implement smp_processor_id() with the PDA
Use the cpu_number in the PDA to implement raw_smp_processor_id. This is a
little simpler than using thread_info, though the cpu field in thread_info
cannot be removed since it is used for things other than getting the current
CPU in common code.
Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Chuck Ebbert <76306.1226@compuserve.com>
Cc: Zachary Amsden <zach@vmware.com>
Cc: Jan Beulich <jbeulich@novell.com>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Diffstat (limited to 'arch/i386/kernel/cpu/common.c')
| -rw-r--r-- | arch/i386/kernel/cpu/common.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/i386/kernel/cpu/common.c b/arch/i386/kernel/cpu/common.c index 4e63d8ce602b..e476202b887f 100644 --- a/arch/i386/kernel/cpu/common.c +++ b/arch/i386/kernel/cpu/common.c @@ -650,6 +650,7 @@ __cpuinit int alloc_gdt(int cpu) /* Initial PDA used by boot CPU */ struct i386_pda boot_pda = { ._pda = &boot_pda, + .cpu_number = 0, }; static inline void set_kernel_gs(void) @@ -694,6 +695,7 @@ __cpuinit int init_gdt(int cpu, struct task_struct *idle) memset(pda, 0, sizeof(*pda)); pda->_pda = pda; + pda->cpu_number = cpu; return 1; } |