sched: Optimize task_rq_lock()

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Now that we hold the rq->lock over set_task_cpu() again, we can do
away with most of the TASK_WAKING checks and reduce them again to
set_cpus_allowed_ptr().

Removes some conditionals from scheduling hot-paths.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Oleg Nesterov <oleg@redhat.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

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Peter Zijlstra 2010-03-25 21:05:16 +01:00 • committed by Ingo Molnar

parent 0017d73509

commit 65cc8e4859

1 changed files with 15 additions and 8 deletions

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kernel/sched.c

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