cpumask: arch_send_call_function_ipi_mask: core We're weaning the core code off handing cpumask's around on-stack. This introduces arch_send_call_function_ipi_mask(). Signed-off-by: Rusty Russell --- kernel/smp.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/kernel/smp.c b/kernel/smp.c --- a/kernel/smp.c +++ b/kernel/smp.c @@ -266,6 +266,12 @@ void __smp_call_function_single(int cpu, generic_exec_single(cpu, data); } +/* FIXME: Shim for archs using old arch_send_call_function_ipi API. */ +#ifndef arch_send_call_function_ipi_mask +#define arch_send_call_function_ipi_mask(maskp) \ + arch_send_call_function_ipi(*(maskp)) +#endif + /** * smp_call_function_many(): Run a function on a set of other CPUs. * @mask: The set of cpus to run on (only runs on online subset). @@ -329,8 +335,6 @@ void smp_call_function_many(const struct data->csd.flags |= CSD_FLAG_WAIT; data->csd.func = func; data->csd.info = info; - /* FIXME: Make archs use new iterators and ignore bits >= nr_cpu_ids */ - memset(to_cpumask(data->cpumask_bits), 0, cpumask_size()); cpumask_and(to_cpumask(data->cpumask_bits), mask, cpu_online_mask); cpumask_clear_cpu(smp_processor_id(), to_cpumask(data->cpumask_bits)); data->refs = cpumask_weight(to_cpumask(data->cpumask_bits)); @@ -345,7 +349,7 @@ void smp_call_function_many(const struct smp_mb(); /* Send a message to all CPUs in the map */ - arch_send_call_function_ipi(*to_cpumask(data->cpumask_bits)); + arch_send_call_function_ipi_mask(to_cpumask(data->cpumask_bits)); /* optionally wait for the CPUs to complete */ if (wait)