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authorThomas Gleixner <tglx@linutronix.de>2012-04-20 13:05:47 +0000
committerThomas Gleixner <tglx@linutronix.de>2012-04-26 12:06:10 +0200
commit5cdaf1834f43b0edc4a3aa683aa4ec98f6bfe8a7 (patch)
treec2ea97e82f7f04eb14d454ea1045f56717d468fd
parent29d5e0476e1c4a513859e7858845ad172f560389 (diff)
downloadop-kernel-dev-5cdaf1834f43b0edc4a3aa683aa4ec98f6bfe8a7.zip
op-kernel-dev-5cdaf1834f43b0edc4a3aa683aa4ec98f6bfe8a7.tar.gz
x86: Add task_struct argument to smp_ops.cpu_up
Preparatory patch to use the generic idle thread allocation. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com> Cc: Jeremy Fitzhardinge <jeremy@goop.org> Cc: x86@kernel.org Link: http://lkml.kernel.org/r/20120420124557.176604405@linutronix.de
-rw-r--r--arch/x86/include/asm/smp.h6
-rw-r--r--arch/x86/kernel/smpboot.c2
-rw-r--r--arch/x86/xen/smp.c6
3 files changed, 7 insertions, 7 deletions
diff --git a/arch/x86/include/asm/smp.h b/arch/x86/include/asm/smp.h
index 4eb3a74..f3ed338 100644
--- a/arch/x86/include/asm/smp.h
+++ b/arch/x86/include/asm/smp.h
@@ -72,7 +72,7 @@ struct smp_ops {
void (*stop_other_cpus)(int wait);
void (*smp_send_reschedule)(int cpu);
- int (*cpu_up)(unsigned cpu);
+ int (*cpu_up)(unsigned cpu, struct task_struct *tidle);
int (*cpu_disable)(void);
void (*cpu_die)(unsigned int cpu);
void (*play_dead)(void);
@@ -117,7 +117,7 @@ static inline void smp_cpus_done(unsigned int max_cpus)
static inline int __cpu_up(unsigned int cpu, struct task_struct *tidle)
{
- return smp_ops.cpu_up(cpu);
+ return smp_ops.cpu_up(cpu, tidle);
}
static inline int __cpu_disable(void)
@@ -154,7 +154,7 @@ void cpu_disable_common(void);
void native_smp_prepare_boot_cpu(void);
void native_smp_prepare_cpus(unsigned int max_cpus);
void native_smp_cpus_done(unsigned int max_cpus);
-int native_cpu_up(unsigned int cpunum);
+int native_cpu_up(unsigned int cpunum, struct task_struct *tidle);
int native_cpu_disable(void);
void native_cpu_die(unsigned int cpu);
void native_play_dead(void);
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 6e1e406..def235bf 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -818,7 +818,7 @@ do_rest:
return boot_error;
}
-int __cpuinit native_cpu_up(unsigned int cpu)
+int __cpuinit native_cpu_up(unsigned int cpu, struct task_struct *tidle)
{
int apicid = apic->cpu_present_to_apicid(cpu);
unsigned long flags;
diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c
index 5fac691..64d3bbc 100644
--- a/arch/x86/xen/smp.c
+++ b/arch/x86/xen/smp.c
@@ -331,7 +331,7 @@ cpu_initialize_context(unsigned int cpu, struct task_struct *idle)
return 0;
}
-static int __cpuinit xen_cpu_up(unsigned int cpu)
+static int __cpuinit xen_cpu_up(unsigned int cpu, struct task_struct *tidle)
{
struct task_struct *idle = idle_task(cpu);
int rc;
@@ -547,10 +547,10 @@ static void __init xen_hvm_smp_prepare_cpus(unsigned int max_cpus)
xen_init_lock_cpu(0);
}
-static int __cpuinit xen_hvm_cpu_up(unsigned int cpu)
+static int __cpuinit xen_hvm_cpu_up(unsigned int cpu, struct task_struct *tidle)
{
int rc;
- rc = native_cpu_up(cpu);
+ rc = native_cpu_up(cpu, tidle);
WARN_ON (xen_smp_intr_init(cpu));
return rc;
}
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