From: Andrew Morton <akpm@digeo.com>
To: Andries Brouwer <aebr@win.tue.nl>
Cc: B.Zolnierkiewicz@elka.pw.edu.pl, alan@lxorguk.ukuu.org.uk,
andre@linux-ide.org, axboe@suse.de, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] 2.5.67-ac2 direct-IO for IDE taskfile ioctl (0/4)
Date: Wed, 23 Apr 2003 16:20:41 -0700 [thread overview]
Message-ID: <20030423162041.1b7ee5b3.akpm@digeo.com> (raw)
In-Reply-To: <20030423231353.GA21346@win.tue.nl>
Andries Brouwer <aebr@win.tue.nl> wrote:
>
> On Wed, Apr 23, 2003 at 03:35:00PM -0700, Andrew Morton wrote:
>
> > What is special about the IDE ioctl approach?
>
> Usually one wants to use the standard commands for I/O.
> But if the purpose is to talk to the drive (set password,
> set native max, eject, change ZIP drive from big floppy
> mode to removable disk mode, etc. etc.) then one needs
> a means to execute IDE commands "by hand".
Yes, but none of these are performance-critical and they don't involve
large amnounts of data. A copy is OK.
If all the rework against bio_map_user() and friends is needed for other
reasons then fine. But it doesn't seem to be needed for the IDE taskfile
ioctl.
next prev parent reply other threads:[~2003-04-23 23:10 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-04-23 17:37 [PATCH] 2.5.67-ac2 direct-IO for IDE taskfile ioctl (0/4) Bartlomiej Zolnierkiewicz
2003-04-23 17:38 ` [PATCH] 2.5.67-ac2 direct-IO for IDE taskfile ioctl (1/4) Bartlomiej Zolnierkiewicz
2003-04-24 8:23 ` Jens Axboe
2003-04-24 14:46 ` Bartlomiej Zolnierkiewicz
2003-04-24 15:47 ` [PATCH] 2.5.68 fix mismatched access_ok() checks in sg_io() Bartlomiej Zolnierkiewicz
2003-04-24 17:31 ` Jens Axboe
2003-04-23 17:39 ` [PATCH] 2.5.67-ac2 direct-IO for IDE taskfile ioctl (2/4) Bartlomiej Zolnierkiewicz
2003-04-23 17:39 ` [PATCH] 2.5.67-ac2 direct-IO for IDE taskfile ioctl (3/4) Bartlomiej Zolnierkiewicz
2003-04-23 17:40 ` [PATCH] 2.5.67-ac2 direct-IO for IDE taskfile ioctl (4/4) Bartlomiej Zolnierkiewicz
2003-04-24 7:56 ` Jens Axboe
2003-04-23 18:24 ` [PATCH] 2.5.67-ac2 direct-IO for IDE taskfile ioctl (0/4) [resend] Bartlomiej Zolnierkiewicz
2003-04-23 22:35 ` [PATCH] 2.5.67-ac2 direct-IO for IDE taskfile ioctl (0/4) Andrew Morton
2003-04-23 22:09 ` Alan Cox
2003-04-23 22:58 ` Bartlomiej Zolnierkiewicz
2003-04-23 23:13 ` Andries Brouwer
2003-04-23 23:20 ` Andrew Morton [this message]
2003-04-24 0:02 ` Bartlomiej Zolnierkiewicz
2003-04-24 6:55 ` Jens Axboe
2003-04-24 2:27 ` Andre Hedrick
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