From: Jens Axboe <axboe@suse.de>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: IDE todo list
Date: Sun, 23 Mar 2003 15:13:29 +0100 [thread overview]
Message-ID: <20030323141329.GD2371@suse.de> (raw)
In-Reply-To: <1048432981.10727.14.camel@irongate.swansea.linux.org.uk>
On Sun, Mar 23 2003, Alan Cox wrote:
> On Sun, 2003-03-23 at 10:49, Jens Axboe wrote:
> > On Sat, Mar 22 2003, Alan Cox wrote:
> > > - Finish verifying 256 sector I/O or larger on LBA48
> > > [How to handle change dynamically on hotplug ?]
> >
> > That is basically impossible. How are you going to handle the case where
> > you have a queue full of 256 request writes, and the plugged in disk
> > chokes on them? And insolvable unless you start setting aside requests
> > simply for this purpose. Also breaks the pseudo atomic segments that a
> > single request represents. This is just way beyond ugly...
>
> I don't think its impossible at all. Remember if you hotplug a drive you
> *dont* want the pending I/O to hit the new drive!
In that case it could be done, the key point is that no resizing needs
to be done. The rest is purely driver implementation :)
--
Jens Axboe
next prev parent reply other threads:[~2003-03-23 14:02 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-03-22 17:01 IDE todo list Alan Cox
2003-03-22 17:24 ` Petr Vandrovec
2003-03-22 19:07 ` Alan Cox
2003-03-22 18:03 ` Nicholas Wourms
2003-03-22 20:36 ` Alan Cox
2003-03-22 20:33 ` Nicholas Wourms
2003-03-22 23:32 ` Alan Cox
2003-03-23 3:49 ` Petr Vandrovec
2003-03-23 15:41 ` Alan Cox
2003-03-23 9:27 ` Matthias Andree
2003-03-23 11:19 ` Jens Axboe
2003-03-23 11:20 ` Jens Axboe
2003-03-23 12:33 ` Matthias Andree
2003-03-23 10:49 ` Jens Axboe
2003-03-23 15:23 ` Alan Cox
2003-03-23 14:13 ` Jens Axboe [this message]
2003-03-23 21:07 ` Andre Hedrick
[not found] <20030322160012$0f05@gated-at.bofh.it>
[not found] ` <20030322173016$24a8@gated-at.bofh.it>
[not found] ` <20030322180018$5114@gated-at.bofh.it>
2003-03-23 12:14 ` Allan Duncan
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