[tip:smp/hotplug] cris: Use generic idle thread allocation
From: tip-bot for Thomas Gleixner
Date: Sat Apr 28 2012 - 05:12:53 EST
Commit-ID: a4cfc31da34eacafd9f6b16e149448bf0ef6d0b2
Gitweb: http://git.kernel.org/tip/a4cfc31da34eacafd9f6b16e149448bf0ef6d0b2
Author: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
AuthorDate: Fri, 20 Apr 2012 13:05:53 +0000
Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitDate: Thu, 26 Apr 2012 12:06:11 +0200
cris: Use generic idle thread allocation
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Rusty Russell <rusty@xxxxxxxxxxxxxxx>
Cc: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
Cc: Srivatsa S. Bhat <srivatsa.bhat@xxxxxxxxxxxxxxxxxx>
Acked-by: Jesper Nilsson <jesper.nilsson@xxxxxxxx>
Link: http://lkml.kernel.org/r/20120420124557.789657793@xxxxxxxxxxxxx
---
arch/cris/Kconfig | 1 +
arch/cris/arch-v32/kernel/smp.c | 12 ++----------
2 files changed, 3 insertions(+), 10 deletions(-)
diff --git a/arch/cris/Kconfig b/arch/cris/Kconfig
index b3abfb0..2995035 100644
--- a/arch/cris/Kconfig
+++ b/arch/cris/Kconfig
@@ -49,6 +49,7 @@ config CRIS
select HAVE_GENERIC_HARDIRQS
select GENERIC_IRQ_SHOW
select GENERIC_IOMAP
+ select GENERIC_SMP_IDLE_THREAD if ETRAX_ARCH_V32
config HZ
int
diff --git a/arch/cris/arch-v32/kernel/smp.c b/arch/cris/arch-v32/kernel/smp.c
index 125ee2d..ebe2cb3 100644
--- a/arch/cris/arch-v32/kernel/smp.c
+++ b/arch/cris/arch-v32/kernel/smp.c
@@ -108,17 +108,12 @@ void __init smp_cpus_done(unsigned int max_cpus)
/* Bring one cpu online.*/
static int __init
-smp_boot_one_cpu(int cpuid)
+smp_boot_one_cpu(int cpuid, struct task_struct idle)
{
unsigned timeout;
- struct task_struct *idle;
cpumask_t cpu_mask;
cpumask_clear(&cpu_mask);
- idle = fork_idle(cpuid);
- if (IS_ERR(idle))
- panic("SMP: fork failed for CPU:%d", cpuid);
-
task_thread_info(idle)->cpu = cpuid;
/* Information to the CPU that is about to boot */
@@ -142,9 +137,6 @@ smp_boot_one_cpu(int cpuid)
barrier();
}
- put_task_struct(idle);
- idle = NULL;
-
printk(KERN_CRIT "SMP: CPU:%d is stuck.\n", cpuid);
return -1;
}
@@ -209,7 +201,7 @@ unsigned long cache_decay_ticks = 1;
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;
}
--
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