sched: Allow SCHED_BATCH to preempt SCHED_IDLE tasks

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Perform the test for SCHED_IDLE before testing for SCHED_BATCH (and
ensure idle tasks don't preempt idle tasks) so the non-interactive,
but still important, SCHED_BATCH tasks will run in favor of the very
low priority SCHED_IDLE tasks.

Signed-off-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Mike Galbraith <efault@gmx.de>
Cc: Richard Purdie <richard.purdie@linuxfoundation.org>
LKML-Reference: <1298408674-3130-2-git-send-email-dvhart@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

...

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Darren Hart 2011-02-22 13:04:33 -08:00 • committed by Ingo Molnar

parent e0a92c1747

commit a2f5c9ab79

1 changed files with 7 additions and 5 deletions

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kernel/sched_fair.c

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