Re: [RFC PATCH 1/3] cpu-hotplug: Refcount Based Cpu Hotplugimplementation

From: Ingo Molnar
Date: Thu Nov 15 2007 - 11:15:30 EST



* Ingo Molnar <mingo@xxxxxxx> wrote:

> FYI, i've put these 3 patches into the scheduler git tree and it's
> looking very good so far. So unless Andrew or Linus objects to put
> this into v2.6.24, or there's serious questions during review, could
> we merge it this way?

i've got this trivial build fix for !SMP - otherwise it's still looking
good.

Ingo

------------------>
Subject: cpu hotplug: fix build on !CONFIG_SMP
From: Ingo Molnar <mingo@xxxxxxx>

fix build on !CONFIG_SMP.

Signed-off-by: Ingo Molnar <mingo@xxxxxxx>
---
include/linux/cpu.h | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)

Index: linux/include/linux/cpu.h
===================================================================
--- linux.orig/include/linux/cpu.h
+++ linux/include/linux/cpu.h
@@ -71,19 +71,25 @@ static inline void unregister_cpu_notifi

int cpu_up(unsigned int cpu);

+extern void cpu_hotplug_init(void);
+
#else

static inline int register_cpu_notifier(struct notifier_block *nb)
{
return 0;
}
+
static inline void unregister_cpu_notifier(struct notifier_block *nb)
{
}

+static inline void cpu_hotplug_init(void)
+{
+}
+
#endif /* CONFIG_SMP */
extern struct sysdev_class cpu_sysdev_class;
-extern void cpu_hotplug_init(void);
extern void cpu_maps_update_begin(void);
extern void cpu_maps_update_done(void);

-
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