sched: convert local_cpu_mask to cpumask_var_t.

Impact: (future) size reduction for large NR_CPUS.

Dynamically allocating cpumasks (when CONFIG_CPUMASK_OFFSTACK) saves
space for small nr_cpu_ids but big CONFIG_NR_CPUS.  cpumask_var_t
is just a struct cpumask for !CONFIG_CPUMASK_OFFSTACK.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 1 insertions, 0 deletions

diff --git a/kernel/sched.c b/kernel/sched.c
index 94fa333c1e7c..f2be61870030 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -8018,6 +8018,7 @@ void __init sched_init_smp(void)
         free_cpumask_var(non_isolated_cpus);
 
         alloc_cpumask_var(&fallback_doms, GFP_KERNEL);
+        init_sched_rt_class();
 }
 #else
 void __init sched_init_smp(void)