From: Bart Van Assche <bvanassche@acm.org>
To: Ye Bin <yebin@huaweicloud.com>,
axboe@kernel.dk, linux-block@vger.kernel.org
Cc: ming.lei@redhat.com
Subject: Re: [PATCH 1/2] block/mq-deadline: disable I/O priority when prio_aging_expire is zero
Date: Thu, 20 Aug 2026 08:31:28 -0700 [thread overview]
Message-ID: <7b469479-e9c5-444e-919f-c18c17893bb7@acm.org> (raw)
In-Reply-To: <20260820021246.2681624-2-yebin@huaweicloud.com>
On 8/19/26 7:12 PM, Ye Bin wrote:
> Since the mq-deadline scheduler introduced support for I/O priorities,
> if a process does not have an I/O priority configured, it becomes bound
> to the process's scheduling priority.
How can this happen? The scheduling priority (sched_setparam()) and I/O
priority (ioprio_set()) are independent as far as I know.
> Setting prio_aging_expire to zero does not actually turn off I/O
> priority in mq-deadline.
prio_aging_expire should not be set to zero. Feel free to submit a patch
that disallows setting prio_aging_expire to zero.
Thanks,
Bart.
next prev parent reply other threads:[~2026-08-20 15:31 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-20 2:12 [PATCH 0/2] disable I/O priority when prio_aging_expire is zero Ye Bin
2026-08-20 2:12 ` [PATCH 1/2] block/mq-deadline: " Ye Bin
2026-08-20 15:31 ` Bart Van Assche [this message]
2026-08-21 2:06 ` yebin
2026-08-20 2:12 ` [PATCH 2/2] block/mq-deadline: add module parameter for prio_aging_expire default Ye Bin
2026-08-20 15:54 ` Bart Van Assche
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