diff options
| author |   Jens Axboe <axboe@fb.com> | 2016-11-28 09:25:50 -0700 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2016-11-28 10:27:03 -0700 |
| commit | fa224eed2b5e0f2f9a57281e9dc733c843d590ad (patch) | |
| tree | e7cdf9a2458ec2fd000c536add5ac206ee1dd9f9 /block/cfq-iosched.c | |
| parent | blk-wbt: allow reset of default latency through sysfs (diff) | |
| download | linux-dev-fa224eed2b5e0f2f9a57281e9dc733c843d590ad.tar.xz linux-dev-fa224eed2b5e0f2f9a57281e9dc733c843d590ad.zip | |
blk-wbt: cleanup disable-by-default for CFQ
Make it clear that we are disabling wbt for the specified queued,
if it was enabled by default. This is in preparation for allowing
users to re-enable wbt, and not have it disabled automatically
again.
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'block/cfq-iosched.c')
| -rw-r--r-- | block/cfq-iosched.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c index 9894dc985e09..c73a6fcaeb9d 100644 --- a/block/cfq-iosched.c +++ b/block/cfq-iosched.c @@ -3780,13 +3780,10 @@ static void check_blkcg_changed(struct cfq_io_cq *cic, struct bio *bio) /* * If we have a non-root cgroup, we can depend on that to * do proper throttling of writes. Turn off wbt for that - * case. + * case, if it was enabled by default. */ - if (nonroot_cg) { - struct request_queue *q = cfqd->queue; - - wbt_disable(q->rq_wb); - } + if (nonroot_cg) + wbt_disable_default(cfqd->queue); /* * Drop reference to queues. New queues will be assigned in new |