stop_machine_cpuslocked

Name:stop_machine_cpuslocked

Proto:int stop_machine_cpuslocked(cpu_stop_fn_t fn, void *data, const struct cpumask *cpus)

Type:int

Parameter:

Type	Parameter	Name
cpu_stop_fn_t	fn
void *	data
const struct cpumask *	cpus

599

struct multi_stop_data msdata = {fn = fn, data = data, Like num_online_cpus(), but hotplug cpu uses us, so we need this. = num_online_cpus(), active_cpus = cpus, }

606

lockdep_assert_cpus_held()

608

If Not stop_machine_initialized Then

617

WARN_ON_ONCE( Like num_online_cpus(), but hotplug cpu uses us, so we need this. != 1)

619

local_irq_save(flags)

620

Some architectures might implement lazy enabling/disabling of* interrupts. In some cases, such as stop_machine, we might want* to ensure that after a local_irq_disable(), interrupts have* really been disabled in hardware. Such architectures need to()

621

ret = ( * fn)(data)

622

local_irq_restore(flags)

624

Return ret

628

set_state( & msdata, MULTI_STOP_PREPARE)

629

Return stop_cpus - stop multiple cpus*@cpumask: cpus to stop*@fn: function to execute*@arg: argument to @fn* Execute @fn(@arg) on online cpus in @cpumask. On each target cpu,*@fn is run in a process context with the highest priority

**Caller**
Name	Describe
microcode_reload_late	Reload microcode late on all CPUs. Wait for a sec until they* all gather together.
stop_machine

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