[tip:smp/hotplug] blackfin: Use generic idle thread allocation
From: tip-bot for Thomas Gleixner
Date: Sat Apr 28 2012 - 05:13:47 EST
Commit-ID: 6bba2682c62e432eaf7b82f8ca182e8c73256e74
Gitweb: http://git.kernel.org/tip/6bba2682c62e432eaf7b82f8ca182e8c73256e74
Author: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
AuthorDate: Fri, 20 Apr 2012 13:05:53 +0000
Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitDate: Thu, 26 Apr 2012 12:06:12 +0200
blackfin: 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>
Cc: Mike Frysinger <vapier@xxxxxxxxxx>
Link: http://lkml.kernel.org/r/20120420124557.717064871@xxxxxxxxxxxxx
---
arch/blackfin/Kconfig | 1 +
arch/blackfin/mach-common/smp.c | 19 +------------------
2 files changed, 2 insertions(+), 18 deletions(-)
diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index 373a690..779b9c8 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -37,6 +37,7 @@ config BLACKFIN
select GENERIC_IRQ_PROBE
select IRQ_PER_CPU if SMP
select HAVE_NMI_WATCHDOG if NMI_WATCHDOG
+ select GENERIC_SMP_IDLE_THREAD
config GENERIC_CSUM
def_bool y
diff --git a/arch/blackfin/mach-common/smp.c b/arch/blackfin/mach-common/smp.c
index d0cddd9..00bbe67 100644
--- a/arch/blackfin/mach-common/smp.c
+++ b/arch/blackfin/mach-common/smp.c
@@ -340,27 +340,10 @@ void smp_send_stop(void)
return;
}
-int __cpuinit __cpu_up(unsigned int cpu, struct task_struct *tidle)
+int __cpuinit __cpu_up(unsigned int cpu, struct task_struct *idle)
{
int ret;
- struct blackfin_cpudata *ci = &per_cpu(cpu_data, cpu);
- struct task_struct *idle = ci->idle;
- if (idle) {
- free_task(idle);
- idle = NULL;
- }
-
- if (!idle) {
- idle = fork_idle(cpu);
- if (IS_ERR(idle)) {
- printk(KERN_ERR "CPU%u: fork() failed\n", cpu);
- return PTR_ERR(idle);
- }
- ci->idle = idle;
- } else {
- init_idle(idle, cpu);
- }
secondary_stack = task_stack_page(idle) + THREAD_SIZE;
ret = platform_boot_secondary(cpu, idle);
--
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