linux-kernel - [PATCH 06/52] merge smp_send

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Date:	Mon,  3 Mar 2008 14:12:34 -0300
From:	Glauber Costa <gcosta@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	akpm@...ux-foundation.org, glommer@...il.com, mingo@...e.hu,
	tglx@...utronix.de, Glauber Costa <gcosta@...hat.com>
Subject: [PATCH 06/52] merge smp_send_reschedule

function definition is moved to common header, x86_64 version is now called
native_smp_send_reschedule

Signed-off-by: Glauber Costa <gcosta@...hat.com>
---
 arch/x86/kernel/smp_64.c |    7 +++++--
 include/asm-x86/smp.h    |    5 +++++
 include/asm-x86/smp_32.h |    4 ----
 include/asm-x86/smp_64.h |    2 --
 4 files changed, 10 insertions(+), 8 deletions(-)

diff --git a/arch/x86/kernel/smp_64.c b/arch/x86/kernel/smp_64.c
index 80dba12..fd18161 100644
--- a/arch/x86/kernel/smp_64.c
+++ b/arch/x86/kernel/smp_64.c
@@ -290,8 +290,9 @@ void flush_tlb_all(void)
  * anything. Worst case is that we lose a reschedule ...
  */
 
-void smp_send_reschedule(int cpu)
+static void native_smp_send_reschedule(int cpu)
 {
+	WARN_ON(cpu_is_offline(cpu));
 	send_IPI_mask(cpumask_of_cpu(cpu), RESCHEDULE_VECTOR);
 }
 
@@ -528,5 +529,7 @@ asmlinkage void smp_call_function_interrupt(void)
 	}
 }
 
-struct smp_ops smp_ops;
+struct smp_ops smp_ops = {
+	.smp_send_reschedule = native_smp_send_reschedule,
+};
 EXPORT_SYMBOL_GPL(smp_ops);
diff --git a/include/asm-x86/smp.h b/include/asm-x86/smp.h
index ee98bee..28f33c0 100644
--- a/include/asm-x86/smp.h
+++ b/include/asm-x86/smp.h
@@ -23,6 +23,11 @@ struct smp_ops {
 
 #ifdef CONFIG_SMP
 extern struct smp_ops smp_ops;
+
+static inline void smp_send_reschedule(int cpu)
+{
+	smp_ops.smp_send_reschedule(cpu);
+}
 #endif
 
 #ifdef CONFIG_X86_32
diff --git a/include/asm-x86/smp_32.h b/include/asm-x86/smp_32.h
index 74755e8..c60a3dd 100644
--- a/include/asm-x86/smp_32.h
+++ b/include/asm-x86/smp_32.h
@@ -60,10 +60,6 @@ static inline void smp_send_stop(void)
 {
 	smp_ops.smp_send_stop();
 }
-static inline void smp_send_reschedule(int cpu)
-{
-	smp_ops.smp_send_reschedule(cpu);
-}
 static inline int smp_call_function_mask(cpumask_t mask,
 					 void (*func) (void *info), void *info,
 					 int wait)
diff --git a/include/asm-x86/smp_64.h b/include/asm-x86/smp_64.h
index 284f701..b920458 100644
--- a/include/asm-x86/smp_64.h
+++ b/include/asm-x86/smp_64.h
@@ -65,8 +65,6 @@ static inline int num_booting_cpus(void)
 	return cpus_weight(cpu_callout_map);
 }
 
-extern void smp_send_reschedule(int cpu);
-
 #else /* CONFIG_SMP */
 
 extern unsigned int boot_cpu_id;
-- 
1.5.0.6

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