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authorThomas Gleixner <tglx@linutronix.de>2012-04-20 13:05:55 +0000
committerThomas Gleixner <tglx@linutronix.de>2012-04-26 12:06:12 +0200
commit2ec9415c71a1ddad969602e690a9c848b81256b3 (patch)
tree0d37d23337811c761effdac1217809175fb2e89d
parentea0588cb6b201c38b0120c4ad38bc548d5dde29a (diff)
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
-rw-r--r--arch/alpha/Kconfig1
-rw-r--r--arch/alpha/kernel/smp.c18
2 files changed, 3 insertions, 16 deletions
diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index 56a4df952fb..991b8bbff4f 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -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,
diff --git a/arch/alpha/kernel/smp.c b/arch/alpha/kernel/smp.c
index 68d39470fb5..35ddc02bfa4 100644
--- a/arch/alpha/kernel/smp.c
+++ b/arch/alpha/kernel/smp.c
@@ -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;
}