sched: convert struct cpupri_vec cpumask_var_t.

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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>

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Rusty Russell 2008-11-25 02:35:13 +10:30 • committed by Ingo Molnar

parent 4212823fb4

commit 68e74568fb

3 changed files with 38 additions and 15 deletions

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9

kernel/sched.c

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39

kernel/sched_cpupri.c

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5

kernel/sched_cpupri.h

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