X-Git-Url: http://pilppa.org/gitweb/?a=blobdiff_plain;f=kernel%2Fcpu.c;h=38033db8d8ec3d8f23af3973560dc995782efbda;hb=cc367732ff0b1c63d0d7bdd11e6d1661794ef6a3;hp=208cf3497c10230552e12de042a72a1da61fe955;hpb=5c34202b8bf942da411b6599668a76b07449bbfd;p=linux-2.6-omap-h63xx.git diff --git a/kernel/cpu.c b/kernel/cpu.c index 208cf3497c1..38033db8d8e 100644 --- a/kernel/cpu.c +++ b/kernel/cpu.c @@ -103,11 +103,19 @@ static inline void check_for_tasks(int cpu) write_unlock_irq(&tasklist_lock); } +struct take_cpu_down_param { + unsigned long mod; + void *hcpu; +}; + /* Take this CPU down. */ -static int take_cpu_down(void *unused) +static int take_cpu_down(void *_param) { + struct take_cpu_down_param *param = _param; int err; + raw_notifier_call_chain(&cpu_chain, CPU_DYING | param->mod, + param->hcpu); /* Ensure this CPU doesn't handle any more interrupts. */ err = __cpu_disable(); if (err < 0) @@ -127,6 +135,10 @@ static int _cpu_down(unsigned int cpu, int tasks_frozen) cpumask_t old_allowed, tmp; void *hcpu = (void *)(long)cpu; unsigned long mod = tasks_frozen ? CPU_TASKS_FROZEN : 0; + struct take_cpu_down_param tcd_param = { + .mod = mod, + .hcpu = hcpu, + }; if (num_online_cpus() == 1) return -EBUSY; @@ -153,7 +165,7 @@ static int _cpu_down(unsigned int cpu, int tasks_frozen) set_cpus_allowed(current, tmp); mutex_lock(&cpu_bitmask_lock); - p = __stop_machine_run(take_cpu_down, NULL, cpu); + p = __stop_machine_run(take_cpu_down, &tcd_param, cpu); mutex_unlock(&cpu_bitmask_lock); if (IS_ERR(p) || cpu_online(cpu)) { @@ -261,7 +273,7 @@ int __cpuinit cpu_up(unsigned int cpu) return err; } -#ifdef CONFIG_SUSPEND_SMP +#ifdef CONFIG_PM_SLEEP_SMP static cpumask_t frozen_cpus; int disable_nonboot_cpus(void) @@ -322,4 +334,4 @@ void enable_nonboot_cpus(void) out: mutex_unlock(&cpu_add_remove_lock); } -#endif +#endif /* CONFIG_PM_SLEEP_SMP */