evie/android_kernel_oneplus_msm8998
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cris: Use generic idle thread allocation

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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>
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>
Link: http://lkml.kernel.org/r/20120420124557.789657793@linutronix.de
This commit is contained in:
Thomas Gleixner 2012-04-20 13:05:53 +00:00
parent e80e7813cd
commit a4cfc31da3
2 changed files with 3 additions and 10 deletions
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1
arch/cris/Kconfig
View file

@ -49,6 +49,7 @@ config CRIS
select HAVE_GENERIC_HARDIRQS select HAVE_GENERIC_HARDIRQS
select GENERIC_IRQ_SHOW select GENERIC_IRQ_SHOW
select GENERIC_IOMAP select GENERIC_IOMAP
select GENERIC_SMP_IDLE_THREAD if ETRAX_ARCH_V32
config HZ config HZ
int int

12
arch/cris/arch-v32/kernel/smp.c
View file

@ -108,17 +108,12 @@ void __init smp_cpus_done(unsigned int max_cpus)
/* Bring one cpu online.*/ /* Bring one cpu online.*/
static int __init static int __init
smp_boot_one_cpu(int cpuid) smp_boot_one_cpu(int cpuid, struct task_struct idle)
{ {
unsigned timeout; unsigned timeout;
struct task_struct *idle;
cpumask_t cpu_mask; cpumask_t cpu_mask;
cpumask_clear(&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; task_thread_info(idle)->cpu = cpuid;
/* Information to the CPU that is about to boot */ /* Information to the CPU that is about to boot */
@ -142,9 +137,6 @@ smp_boot_one_cpu(int cpuid)
barrier(); barrier();
} }
put_task_struct(idle);
idle = NULL;
printk(KERN_CRIT "SMP: CPU:%d is stuck.\n", cpuid); printk(KERN_CRIT "SMP: CPU:%d is stuck.\n", cpuid);
return -1; return -1;
} }
@ -209,7 +201,7 @@ unsigned long cache_decay_ticks = 1;
int __cpuinit __cpu_up(unsigned int cpu, struct task_struct *tidle) 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; return cpu_online(cpu) ? 0 : -ENOSYS;
} }