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sched: Create proper cpu_$DOM_mask() functions

Browse source 
In order to unify the sched domain creation more, create proper
cpu_$DOM_mask() functions for those domains that didn't already have
one.

Use the sched_domains_tmpmask for the weird NUMA domain span.

Signed-off-by: Peter Zijlstra <[email protected]>
Cc: Mike Galbraith <[email protected]>
Cc: Nick Piggin <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Andrew Morton <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
This commit is contained in:
Peter Zijlstra 2011-04-07 14:09:59 +02:00 • committed by Ingo Molnar
commit d3081f52f2
1 changed files with 17 additions and 5 deletions
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22
kernel/sched.c
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@ -6807,8 +6807,22 @@ static void sched_domain_node_span(int node, struct cpumask *span)
cpumask_or(span, span, cpumask_of_node(next_node));
}
}
static const struct cpumask *cpu_node_mask(int cpu)
{
lockdep_assert_held(&sched_domains_mutex);
sched_domain_node_span(cpu_to_node(cpu), sched_domains_tmpmask);
return sched_domains_tmpmask;
}
#endif /* CONFIG_NUMA */
static const struct cpumask *cpu_cpu_mask(int cpu)
{
return cpumask_of_node(cpu_to_node(cpu));
}
int sched_smt_power_savings = 0, sched_mc_power_savings = 0;
struct sd_data {
@ -7088,7 +7102,7 @@ static struct sched_domain *__build_allnodes_sched_domain(struct s_data *d,
#ifdef CONFIG_NUMA
sd = sd_init_ALLNODES(d, i);
set_domain_attribute(sd, attr);
cpumask_copy(sched_domain_span(sd), cpu_map);
cpumask_and(sched_domain_span(sd), cpu_map, cpu_possible_mask);
sd->parent = parent;
if (parent)
parent->child = sd;
@ -7104,8 +7118,7 @@ static struct sched_domain *__build_node_sched_domain(struct s_data *d,
#ifdef CONFIG_NUMA
sd = sd_init_NODE(d, i);
set_domain_attribute(sd, attr);
sched_domain_node_span(cpu_to_node(i), sched_domain_span(sd));
cpumask_and(sched_domain_span(sd), sched_domain_span(sd), cpu_map);
cpumask_and(sched_domain_span(sd), cpu_map, cpu_node_mask(i));
sd->parent = parent;
if (parent)
parent->child = sd;
@ -7120,8 +7133,7 @@ static struct sched_domain *__build_cpu_sched_domain(struct s_data *d,
struct sched_domain *sd;
sd = sd_init_CPU(d, i);
set_domain_attribute(sd, attr);
cpumask_and(sched_domain_span(sd),
cpumask_of_node(cpu_to_node(i)), cpu_map);
cpumask_and(sched_domain_span(sd), cpu_map, cpu_cpu_mask(i));
sd->parent = parent;
if (parent)
parent->child = sd;