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| author | Thomas Gleixner <tglx@linutronix.de> | 2012-04-20 13:05:56 +0000 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2012-04-26 12:06:13 +0200 |
| commit | 9a1347237492f273f84ec39962b5806c70b2806a (patch) | |
| tree | a35cc5ce4d43c307784620d2c409c943a954cd4c | |
| parent | f0a2bc7e54bb51f64d4c2cd5942ba6018a13d762 (diff) | |
| download | linux-stable-9a1347237492f273f84ec39962b5806c70b2806a.tar.gz linux-stable-9a1347237492f273f84ec39962b5806c70b2806a.tar.bz2 linux-stable-9a1347237492f273f84ec39962b5806c70b2806a.zip | |
parisc: 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: James E.J. Bottomley <jejb@parisc-linux.org>
Link: http://lkml.kernel.org/r/20120420124557.988947805@linutronix.de
| -rw-r--r-- | arch/parisc/Kconfig | 1 | ||||
| -rw-r--r-- | arch/parisc/kernel/smp.c | 23 |
2 files changed, 3 insertions, 21 deletions
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig index 242a1b7ac759..ddb8b24b823d 100644 --- a/arch/parisc/Kconfig +++ b/arch/parisc/Kconfig @@ -17,6 +17,7 @@ config PARISC select GENERIC_PCI_IOMAP select IRQ_PER_CPU select ARCH_HAVE_NMI_SAFE_CMPXCHG + select GENERIC_SMP_IDLE_THREAD help The PA-RISC microprocessor is designed by Hewlett-Packard and used diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c index eae8cd808f07..f64f381b4d82 100644 --- a/arch/parisc/kernel/smp.c +++ b/arch/parisc/kernel/smp.c @@ -334,26 +334,11 @@ void __init smp_callin(void) /* * Bring one cpu online. */ -int __cpuinit smp_boot_one_cpu(int cpuid) +int __cpuinit smp_boot_one_cpu(int cpuid, struct task_struct *idle) { const struct cpuinfo_parisc *p = &per_cpu(cpu_data, cpuid); - struct task_struct *idle; long timeout; - /* - * Create an idle task for this CPU. Note the address wed* give - * to kernel_thread is irrelevant -- it's going to start - * where OS_BOOT_RENDEVZ vector in SAL says to start. But - * this gets all the other task-y sort of data structures set - * up like we wish. We need to pull the just created idle task - * off the run queue and stuff it into the init_tasks[] array. - * Sheesh . . . - */ - - idle = fork_idle(cpuid); - if (IS_ERR(idle)) - panic("SMP: fork failed for CPU:%d", cpuid); - task_thread_info(idle)->cpu = cpuid; /* Let _start know what logical CPU we're booting @@ -397,10 +382,6 @@ int __cpuinit smp_boot_one_cpu(int cpuid) udelay(100); barrier(); } - - put_task_struct(idle); - idle = NULL; - printk(KERN_CRIT "SMP: CPU:%d is stuck.\n", cpuid); return -1; @@ -452,7 +433,7 @@ void smp_cpus_done(unsigned int cpu_max) int __cpuinit __cpu_up(unsigned int cpu, struct task_struct *tidle) { if (cpu != 0 && cpu < parisc_max_cpus) - smp_boot_one_cpu(cpu); + smp_boot_one_cpu(cpu, tidle); return cpu_online(cpu) ? 0 : -ENOSYS; } |