From 6d63c275572d1e6f00d4fa154f16fbb0d8c2d2bf Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Wed, 7 May 2008 09:51:23 +0200 Subject: cfq-iosched: make io priorities inherit CPU scheduling class as well as nice We currently set all processes to the best-effort scheduling class, regardless of what CPU scheduling class they belong to. Improve that so that we correctly track idle and rt scheduling classes as well. Signed-off-by: Jens Axboe --- block/cfq-iosched.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'block') diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c index 7f909d2f488..b399c62936e 100644 --- a/block/cfq-iosched.c +++ b/block/cfq-iosched.c @@ -1303,10 +1303,10 @@ static void cfq_init_prio_data(struct cfq_queue *cfqq, struct io_context *ioc) printk(KERN_ERR "cfq: bad prio %x\n", ioprio_class); case IOPRIO_CLASS_NONE: /* - * no prio set, place us in the middle of the BE classes + * no prio set, inherit CPU scheduling settings */ cfqq->ioprio = task_nice_ioprio(tsk); - cfqq->ioprio_class = IOPRIO_CLASS_BE; + cfqq->ioprio_class = task_nice_ioclass(tsk); break; case IOPRIO_CLASS_RT: cfqq->ioprio = task_ioprio(ioc); -- cgit v1.2.3-70-g09d2