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authorSiddha, Suresh B <suresh.b.siddha@intel.com>2006-12-07 02:14:10 +0100
committerAndi Kleen <andi@basil.nowhere.org>2006-12-07 02:14:10 +0100
commitfd6d7d26897dec834d0b9fbdc59819b0332a1257 (patch)
treea4bb5a7c9160c70c7763640dbb11082b3cefcbe5 /include/asm-i386
parent274e1bbdeeaf16e71418f11f5f305ab26061f2c2 (diff)
downloadop-kernel-dev-fd6d7d26897dec834d0b9fbdc59819b0332a1257.zip
op-kernel-dev-fd6d7d26897dec834d0b9fbdc59819b0332a1257.tar.gz
[PATCH] i386: introduce the mechanism of disabling cpu hotplug control
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 <suresh.b.siddha@intel.com> Signed-off-by: Andi Kleen <ak@suse.de> Cc: Andi Kleen <ak@suse.de> Cc: "Li, Shaohua" <shaohua.li@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org>
Diffstat (limited to 'include/asm-i386')
-rw-r--r--include/asm-i386/cpu.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/asm-i386/cpu.h b/include/asm-i386/cpu.h
index b1bc7b1..9d914e1e 100644
--- a/include/asm-i386/cpu.h
+++ b/include/asm-i386/cpu.h
@@ -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);
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