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From: "Alejandro Colomar (man-pages)" <>
To: Tycho Kirchner <>
Cc: "Michael Kerrisk (man-pages)" <>,
	linux-man <>
Subject: Re: ioprio_get(2) outdated
Date: Fri, 21 May 2021 13:07:50 +0200	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

Hi Tycho,

On 5/20/21 12:30 PM, Tycho Kirchner wrote:
> Hi,
> please update ioprio_get(2) to the today more common Multi-Queue Block 
> IO Queueing Mechanism (blk-mq). In particular:
>> These system calls have an effect only when used in conjunction
>> with an I/O scheduler that supports I/O priorities.  As at kernel
>> 2.6.17 the only such scheduler is the Completely Fair Queuing
>> (CFQ) I/O scheduler.
> As far as I know BFQ is the only mq-iosched which supports (read-) 
> priorities. See also [1]. The kernel Documentation/block/ioprio.txt is 
> outdated as well, I guess I'll send an email there too.
> Thanks and kind regards
> Tycho Kirchner

Okay, I don't know much about it, so I'll CC Michael.



> [1]:

Alejandro Colomar
Linux man-pages comaintainer;
Senior SW Engineer;

      reply	other threads:[~2021-05-21 11:07 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-20 10:30 ioprio_get(2) outdated Tycho Kirchner
2021-05-21 11:07 ` Alejandro Colomar (man-pages) [this message]

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