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| author | Li Shaohua <shaohua.li@intel.com> | 2005-06-25 14:54:56 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-06-25 16:24:30 -0700 |
| commit | e1367daf3eed5cd619ee88c9907e1e6ddaa58406 (patch) | |
| tree | dce60efefba356e0a914669587586a6174e41b94 /arch/i386/kernel/cpu/common.c | |
| parent | 0bb3184df537002a742bafddf3f4fb482b7fe610 (diff) | |
| download | linux-e1367daf3eed5cd619ee88c9907e1e6ddaa58406.tar.gz | |
[PATCH] cpu state clean after hot remove
Clean CPU states in order to reuse smp boot code for CPU hotplug.
Signed-off-by: Li Shaohua<shaohua.li@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/i386/kernel/cpu/common.c')
| -rw-r--r-- | arch/i386/kernel/cpu/common.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/i386/kernel/cpu/common.c b/arch/i386/kernel/cpu/common.c index aac74758caf49..2203a9d202125 100644 --- a/arch/i386/kernel/cpu/common.c +++ b/arch/i386/kernel/cpu/common.c @@ -651,3 +651,15 @@ void __devinit cpu_init(void) clear_used_math(); mxcsr_feature_mask_init(); } + +#ifdef CONFIG_HOTPLUG_CPU +void __devinit cpu_uninit(void) +{ + int cpu = raw_smp_processor_id(); + cpu_clear(cpu, cpu_initialized); + + /* lazy TLB state */ + per_cpu(cpu_tlbstate, cpu).state = 0; + per_cpu(cpu_tlbstate, cpu).active_mm = &init_mm; +} +#endif |