sched: convert struct cpupri_vec cpumask_var_t.
authorRusty Russell <rusty@rustcorp.com.au>
Mon, 24 Nov 2008 16:05:13 +0000 (02:05 +1030)
committerIngo Molnar <mingo@elte.hu>
Mon, 24 Nov 2008 16:52:22 +0000 (17:52 +0100)
commit68e74568fbe5854952355e942acca51f138096d9
tree6263627b3b3c7e249f685ba0fe4d76002e882cd0
parent4212823fb459eacc8098dd420bb68ebb9917989d
sched: convert struct cpupri_vec cpumask_var_t.

Impact: stack usage reduction, (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.

The fact cpupro_init is called both before and after the slab is
available makes for an ugly parameter unfortunately.

We also use cpumask_any_and to get rid of a temporary in cpupri_find.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
kernel/sched.c
kernel/sched_cpupri.c
kernel/sched_cpupri.h