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authorJens Axboe <jens.axboe@oracle.com>2008-05-07 09:51:23 +0200
committerJens Axboe <jens.axboe@oracle.com>2008-05-07 09:51:23 +0200
commit6d63c275572d1e6f00d4fa154f16fbb0d8c2d2bf (patch)
tree715f4bab902f117c958a929e44cd0b2257e3be29 /block/cfq-iosched.c
parentdbaf2c003e151ad9231778819b0977f95e20e06f (diff)
downloadconfigs-6d63c275572d1e6f00d4fa154f16fbb0d8c2d2bf.tar.gz
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 <jens.axboe@oracle.com>
Diffstat (limited to 'block/cfq-iosched.c')
-rw-r--r--block/cfq-iosched.c4
1 files changed, 2 insertions, 2 deletions
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);