sched: Extend enqueue_task to allow head queueing

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The ability of enqueueing a task to the head of a SCHED_FIFO priority
list is required to fix some violations of POSIX scheduling policy.

Extend the related functions with a "head" argument.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Tested-by: Carsten Emde <cbe@osadl.org>
Tested-by: Mathias Weber <mathias.weber.mw1@roche.com>
LKML-Reference: <20100120171629.734886007@linutronix.de>

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This commit is contained in:

Thomas Gleixner 2010-01-20 20:58:57 +00:00

parent 7c9414385e

commit ea87bb7853

4 changed files with 13 additions and 9 deletions

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3

include/linux/sched.h

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13

kernel/sched.c

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3

kernel/sched_fair.c

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3

kernel/sched_rt.c

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