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alpha: Use 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: Matt Turner <mattst88@gmail.com>
Link: http://lkml.kernel.org/r/20120420124557.914631081@linutronix.de
hifive-unleashed-5.1
Thomas Gleixner 2012-04-20 13:05:55 +00:00
parent ea0588cb6b
commit 2ec9415c71
2 changed files with 3 additions and 16 deletions
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1
arch/alpha/Kconfig
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@ -15,6 +15,7 @@ config ALPHA
select GENERIC_IRQ_SHOW
select ARCH_WANT_OPTIONAL_GPIOLIB
select ARCH_HAVE_NMI_SAFE_CMPXCHG
select GENERIC_SMP_IDLE_THREAD
help
The Alpha is a 64-bit general-purpose processor designed and
marketed by the Digital Equipment Corporation of blessed memory,

18
arch/alpha/kernel/smp.c
View File

@ -357,24 +357,10 @@ secondary_cpu_start(int cpuid, struct task_struct *idle)
* Bring one cpu online.
*/
static int __cpuinit
smp_boot_one_cpu(int cpuid)
smp_boot_one_cpu(int cpuid, struct task_struct *idle)
{
struct task_struct *idle;
unsigned long timeout;
/* Cook up an idler for this guy. Note that the address we
give to kernel_thread is irrelevant -- it's going to start
where HWRPB.CPU_restart says to start. But this gets all
the other task-y sort of data structures set up like we
wish. We can't use kernel_thread since we must avoid
rescheduling the child. */
idle = fork_idle(cpuid);
if (IS_ERR(idle))
panic("failed fork for CPU %d", cpuid);
DBGS(("smp_boot_one_cpu: CPU %d state 0x%lx flags 0x%lx\n",
cpuid, idle->state, idle->flags));
/* Signal the secondary to wait a moment. */
smp_secondary_alive = -1;
@ -489,7 +475,7 @@ smp_prepare_boot_cpu(void)
int __cpuinit
__cpu_up(unsigned int cpu, struct task_struct *tidle)
{
smp_boot_one_cpu(cpu);
smp_boot_one_cpu(cpu, tidle);
return cpu_online(cpu) ? 0 : -ENOSYS;
}