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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
This commit is contained in:
Thomas Gleixner 2012-04-20 13:05:47 +00:00
parent 29d5e0476e
commit 5cdaf1834f
3 changed files with 7 additions and 7 deletions
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6
arch/x86/include/asm/smp.h
View File

@ -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);

2
arch/x86/kernel/smpboot.c
View File

@ -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;

6
arch/x86/xen/smp.c
View File

@ -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;
}