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[PATCH] i386: introduce the mechanism of disabling cpu hotplug control

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Add 'enable_cpu_hotplug' flag and when cleared, the hotplug control file
("online") will not be added under /sys/devices/system/cpu/cpuX/

Next patch doing PCI quirks will use this.

Signed-off-by: Suresh Siddha <[email protected]>
Signed-off-by: Andi Kleen <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: "Li, Shaohua" <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
This commit is contained in:
Siddha, Suresh B 2006-12-07 02:14:10 +01:00 • committed by Andi Kleen
commit fd6d7d2689
2 changed files with 8 additions and 1 deletions
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3
include/asm-i386/cpu.h
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@ -13,6 +13,9 @@ struct i386_cpu {
extern int arch_register_cpu(int num);
#ifdef CONFIG_HOTPLUG_CPU
extern void arch_unregister_cpu(int);
extern int enable_cpu_hotplug;
#else
#define enable_cpu_hotplug 0
#endif
DECLARE_PER_CPU(int, cpu_state);