Subject: Re: RFC: patch to change the disk I/O scheduler via dkctl(8)
To: None <>
From: YAMAMOTO Takashi <>
List: tech-kern
Date: 10/12/2005 10:32:06

> > - is there any point to change "sortmethod" on the fly?
> >   it's characteristics of the device.
> I removed this, and I modified bufq_set_strat to accept
> an int argument to set the sort method in the driver
> and not via dkctl(8).

why did you leave struct disk_sched?

> > - if you create a new file for bufq_ routines,
> >   it should contain bufq_alloc etc as well.
> Done.

- please preserve copyright notices.
- i'd suggest subr_bufq.c.

> > - string -> BUFQ_* conversion shouldn't be done in bufq_set_strat.
> >   it's better to make bufq_alloc itsself take a string.
> I could do that, but I think it's better to not modify the API
> (and a bunch of drivers), anyway I don't have any problem with
> modifying all drivers if you think it's better.

i have a patch in my local tree.

> > - bufq_set_strat seems broken.
> >   have you read bufq_alloc/free?> 
> I believe this is fixed in my latest patch.

it doesn't seem to be fixed.  have you tested it?