Re: [PATCH 1/2] block/mq-deadline: disable I/O priority when prio_aging_expire is zero

Bart Van Assche <[email protected]>
Newsgroups org.kernel.vger.linux-block
Message-ID <[email protected]> 
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.
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