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| author | Andreas Herrmann <andreas.herrmann3@amd.com> | 2009-08-18 12:57:51 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-08-18 18:35:42 +0200 |
| commit | 0e8e85c941d8f1b43bcc2e3b8b7026cdae476c53 (patch) | |
| tree | 2b9f50df17aeb9ed346a5b0c7f6ed98d38992623 /kernel/sched.c | |
| parent | d81735355533cd4b2bce9508d86fcad24a38cf47 (diff) | |
| download | lwn-0e8e85c941d8f1b43bcc2e3b8b7026cdae476c53.tar.gz lwn-0e8e85c941d8f1b43bcc2e3b8b7026cdae476c53.zip | |
sched: Separate out build of SMT sched groups from __build_sched_domains
... to further strip down __build_sched_domains().
Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Cc: Peter Zijlstra <peterz@infradead.org>
LKML-Reference: <20090818105751.GH29515@alberich.amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/sched.c')
| -rw-r--r-- | kernel/sched.c | 31 |
1 files changed, 20 insertions, 11 deletions
diff --git a/kernel/sched.c b/kernel/sched.c index 2ecec06e3f0c..43cfc6e54e96 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -8563,6 +8563,25 @@ static struct sched_domain *__build_smt_sched_domain(struct s_data *d, return sd; } +static void build_sched_groups(struct s_data *d, enum sched_domain_level l, + const struct cpumask *cpu_map, int cpu) +{ + switch (l) { +#ifdef CONFIG_SCHED_SMT + case SD_LV_SIBLING: /* set up CPU (sibling) groups */ + cpumask_and(d->this_sibling_map, cpu_map, + topology_thread_cpumask(cpu)); + if (cpu == cpumask_first(d->this_sibling_map)) + init_sched_build_groups(d->this_sibling_map, cpu_map, + &cpu_to_cpu_group, + d->send_covered, d->tmpmask); + break; +#endif + default: + break; + } +} + /* * Build sched domains for a given set of cpus and attach the sched domains * to the individual cpus @@ -8597,19 +8616,9 @@ static int __build_sched_domains(const struct cpumask *cpu_map, sd = __build_smt_sched_domain(&d, cpu_map, attr, sd, i); } -#ifdef CONFIG_SCHED_SMT - /* Set up CPU (sibling) groups */ for_each_cpu(i, cpu_map) { - cpumask_and(d.this_sibling_map, - topology_thread_cpumask(i), cpu_map); - if (i != cpumask_first(d.this_sibling_map)) - continue; - - init_sched_build_groups(d.this_sibling_map, cpu_map, - &cpu_to_cpu_group, - d.send_covered, d.tmpmask); + build_sched_groups(&d, SD_LV_SIBLING, cpu_map, i); } -#endif #ifdef CONFIG_SCHED_MC /* Set up multi-core groups */ |