sched: convert cpu_isolated_map to cpumask_var_t.

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Impact: stack usage reduction, (future) size reduction, cleanup

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.

We can also use cpulist_parse() instead of doing it manually in
isolated_cpu_setup.

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 02:35:12 +10:30 • committed by Ingo Molnar

parent d5dd3db1dc

commit dcc30a35f7

1 changed files with 14 additions and 17 deletions

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kernel/sched.c

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