Subject: Re: Changing the I/O scheduler on-the-fly
To: Juan RP <juan@xtrarom.org>
From: David Brownlee <abs@NetBSD.org>
List: tech-kern
Date: 09/07/2005 16:24:58
On Wed, 7 Sep 2005, Juan RP wrote:

> On Wed, 7 Sep 2005 12:40:56 +0200
> Juan RP <juan@xtrarom.org> wrote:
>
>> FYI I'm implementing that on subr_disk, adding new generic functions
>> to minimize the impact on the disk drivers with Quentin Garnier's
>> help.
>
> Patch updated at the same URL (ftp.netbsd.org:~xtraeme), modified
> with suggestions from cube, jmmv, rpaulo and uep.
>
> TODO:
>
> 	* Fix the buffers pending issue (where will go the previous
> 	   buffers? heh).
>
> 	* Add missing ioctl call to get the current I/O scheduler used
> 	  (DIOCGIOSCHED).
>
> Any idea about the buffers issue?

 	There is no way to pass them across to the new queuing system?
 	Could each queueing system have a function to which existing
 	buffers can be passed to be added to its 'default' list?


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