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* ioprio_get(2) outdated
@ 2021-05-20 10:30 Tycho Kirchner
  2021-05-21 11:07 ` Alejandro Colomar (man-pages)
  0 siblings, 1 reply; 2+ messages in thread
From: Tycho Kirchner @ 2021-05-20 10:30 UTC (permalink / raw)
  To: linux-man

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outdated as well, I guess I'll send an email there too.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


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2021-05-20 10:30 ioprio_get(2) outdated Tycho Kirchner
2021-05-21 11:07 ` Alejandro Colomar (man-pages)

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