linux-kernel - Re: [PATCH 2/2] 2.6.19-rc1-mm1 pktcdvd: bio write congestion

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Date:	14 Oct 2006 20:55:16 +0200
From:	Peter Osterlund <petero2@...ia.com>
To:	balagi@...tmail.de
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"akpm@...l.org" <akpm@...l.org>, Jens Axboe <jens.axboe@...cle.com>
Subject: Re: [PATCH 2/2] 2.6.19-rc1-mm1 pktcdvd: bio write congestion

"Thomas Maier" <balagi@...tmail.de> writes:

> Hello,
> 
> this adds a bio write queue congestion control
> to the pktcdvd driver with fixed on/off marks.
> It prevents that the driver consumes a unlimited
> amount of write requests.

Thanks, this looks good in principle, but I think it can be
implemented in a simpler way.

Jens, can I please ask your opinion. Would it make sense to export the
clear_queue_congested() and set_queue_congested() functions in
ll_rw_blk.c so that the pktcdvd driver can use them? Something like
this patch from a few years ago:

        http://marc.theaimsgroup.com/?l=linux-kernel&m=109378210610508&w=2

-- 
Peter Osterlund - petero2@...ia.com
http://web.telia.com/~u89404340
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