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block/ioprio: Use a helper to check for RT prio 

A side-effect to the old code is that now SCHED_DEADLINE is also
recognized.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Jens Axboe <axboe@fb.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20171004154901.26904-2-bigeasy@linutronix.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Sebastian Andrzej Siewior 2017-10-04 17:49:01 +02:00 committed by Ingo Molnar
parent ff0d4a9dc1
commit 36436440cd
1 changed files with 2 additions and 1 deletions
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3
include/linux/ioprio.h
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@ -2,6 +2,7 @@
#define IOPRIO_H
#include <linux/sched.h>
#include <linux/sched/rt.h>
#include <linux/iocontext.h>
/*
@ -62,7 +63,7 @@ static inline int task_nice_ioclass(struct task_struct *task)
{
if (task->policy == SCHED_IDLE)
return IOPRIO_CLASS_IDLE;
else if (task->policy == SCHED_FIFO || task->policy == SCHED_RR)
else if (task_is_realtime(task))
return IOPRIO_CLASS_RT;
else
return IOPRIO_CLASS_BE;