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| author | Chandra Seetharaman <sekharan@us.ibm.com> | 2006-06-27 02:54:10 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-27 17:32:41 -0700 |
| commit | 39f4885c56073ecafd482d7e10dd7b17900fa312 (patch) | |
| tree | 81a90a4b7bc4dae71613cce3e27da361b08ecb0a /include | |
| parent | 26c2143b63b8078d08d562733716de142927e17a (diff) | |
| download | linux-39f4885c56073ecafd482d7e10dd7b17900fa312.tar.gz linux-39f4885c56073ecafd482d7e10dd7b17900fa312.tar.bz2 linux-39f4885c56073ecafd482d7e10dd7b17900fa312.zip | |
[PATCH] cpu hotplug: add hotplug versions of cpu_notifier
Define new macros register_hotcpu_notifier() and unregister_hotcpu_notifier()
that redefines register_cpu_notifier() and unregister_cpu_notifier() for use
only when HOTPLUG_CPU is defined.
Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com>
Cc: Ashok Raj <ashok.raj@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/cpu.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/cpu.h b/include/linux/cpu.h index cdfe471a70a1..a3caf6866bae 100644 --- a/include/linux/cpu.h +++ b/include/linux/cpu.h @@ -79,6 +79,8 @@ extern int lock_cpu_hotplug_interruptible(void); { .notifier_call = fn, .priority = pri }; \ register_cpu_notifier(&fn##_nb); \ } +#define register_hotcpu_notifier(nb) register_cpu_notifier(nb) +#define unregister_hotcpu_notifier(nb) unregister_cpu_notifier(nb) int cpu_down(unsigned int cpu); #define cpu_is_offline(cpu) unlikely(!cpu_online(cpu)) #else @@ -86,6 +88,8 @@ int cpu_down(unsigned int cpu); #define unlock_cpu_hotplug() do { } while (0) #define lock_cpu_hotplug_interruptible() 0 #define hotcpu_notifier(fn, pri) +#define register_hotcpu_notifier(nb) +#define unregister_hotcpu_notifier(nb) /* CPUs don't go offline once they're online w/o CONFIG_HOTPLUG_CPU */ static inline int cpu_is_offline(int cpu) { return 0; } |