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sched: remove any_online_cpu()

Browse source 
Impact: use new API

any_online_cpu() is a good name, but it takes a cpumask_t, not a
pointer.

There are several places where any_online_cpu() doesn't really want a
mask arg at all.  Replace all callers with cpumask_any() and
cpumask_any_and().

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Mike Travis <travis@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Rusty Russell 2008-11-25 02:35:03 +10:30 committed by Ingo Molnar
parent 3404c8d97c
commit 1e5ce4f4a7
1 changed files with 8 additions and 6 deletions
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14
kernel/sched.c
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@ -5964,7 +5964,7 @@ int set_cpus_allowed_ptr(struct task_struct *p, const cpumask_t *new_mask)
if (cpu_isset(task_cpu(p), *new_mask))
goto out;
if (migrate_task(p, any_online_cpu(*new_mask), &req)) {
if (migrate_task(p, cpumask_any_and(cpu_online_mask, new_mask), &req)) {
/* Need help from migration thread: drop lock and wait. */
task_rq_unlock(rq, &flags);
wake_up_process(rq->migration_thread);
@ -6113,11 +6113,12 @@ static void move_task_off_dead_cpu(int dead_cpu, struct task_struct *p)
node_to_cpumask_ptr(pnodemask, cpu_to_node(dead_cpu));
cpus_and(mask, *pnodemask, p->cpus_allowed);
dest_cpu = any_online_cpu(mask);
dest_cpu = cpumask_any_and(cpu_online_mask, &mask);
/* On any allowed CPU? */
if (dest_cpu >= nr_cpu_ids)
dest_cpu = any_online_cpu(p->cpus_allowed);
dest_cpu = cpumask_any_and(cpu_online_mask,
&p->cpus_allowed);
/* No more Mr. Nice Guy. */
if (dest_cpu >= nr_cpu_ids) {
@ -6133,7 +6134,8 @@ static void move_task_off_dead_cpu(int dead_cpu, struct task_struct *p)
*/
rq = task_rq_lock(p, &flags);
p->cpus_allowed = cpus_allowed;
dest_cpu = any_online_cpu(p->cpus_allowed);
dest_cpu = cpumask_any_and(cpu_online_mask,
&p->cpus_allowed);
task_rq_unlock(rq, &flags);
/*
@ -6159,7 +6161,7 @@ static void move_task_off_dead_cpu(int dead_cpu, struct task_struct *p)
*/
static void migrate_nr_uninterruptible(struct rq *rq_src)
{
struct rq *rq_dest = cpu_rq(any_online_cpu(*CPU_MASK_ALL_PTR));
struct rq *rq_dest = cpu_rq(cpumask_any(cpu_online_mask));
unsigned long flags;
local_irq_save(flags);
@ -6524,7 +6526,7 @@ migration_call(struct notifier_block *nfb, unsigned long action, void *hcpu)
break;
/* Unbind it from offline cpu so it can run. Fall thru. */
kthread_bind(cpu_rq(cpu)->migration_thread,
any_online_cpu(cpu_online_map));
cpumask_any(cpu_online_mask));
kthread_stop(cpu_rq(cpu)->migration_thread);
cpu_rq(cpu)->migration_thread = NULL;
break;