From: Jens Axboe <axboe@kernel.dk>
To: Jeff Moyer <jmoyer@redhat.com>, linux-kernel@vger.kernel.org
Subject: Re: [patch] cfq-iosched: fix incorrect filing of rt async cfqq
Date: Wed, 21 Jan 2015 10:37:32 -0700 [thread overview]
Message-ID: <54BFE3DC.4050101@kernel.dk> (raw)
In-Reply-To: <x494mrvu4wi.fsf@segfault.boston.devel.redhat.com>
On 01/12/2015 01:21 PM, Jeff Moyer wrote:
> Hi,
>
> If you can manage to submit an async write as the first async I/O from
> the context of a process with realtime scheduling priority, then a
> cfq_queue is allocated, but filed into the wrong async_cfqq bucket. It
> ends up in the best effort array, but actually has realtime I/O
> scheduling priority set in cfqq->ioprio.
Applied, thanks Jeff. I've added a stable tag to it as well.
--
Jens Axboe
prev parent reply other threads:[~2015-01-21 17:37 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-12 20:21 [patch] cfq-iosched: fix incorrect filing of rt async cfqq Jeff Moyer
2015-01-21 4:55 ` Hidehiro Kawai
2015-01-21 17:37 ` Jens Axboe [this message]
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