From: Jens Axboe <axboe@suse.de>
To: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>
Cc: Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: serialize access to ide device
Date: Sat, 21 Aug 2004 18:21:56 +0200 [thread overview]
Message-ID: <20040821162155.GC7490@suse.de> (raw)
In-Reply-To: <200408211643.55531.bzolnier@elka.pw.edu.pl>
On Sat, Aug 21 2004, Bartlomiej Zolnierkiewicz wrote:
> On Saturday 21 August 2004 12:32, Jens Axboe wrote:
> > > What about adding new kind of REQ_SPECIAL request and converting
> > > set_using_dma(), set_xfer_rate(), ..., to be callback functions for this
> > > request?
> > >
> > > This should be a lot cleaner and will cover 100% cases.
> >
> > That will still only serialize per-channel. But yes, a lot cleaner.
>
> per hwgroup not per channel
> (serializing per host device will be better but requires even more work)
Sorry yes hwgroup, that's what I meant. The case I worried about in my
patch (and noted) is that it doesn't cover per-hwif and neither would a
special request.
--
Jens Axboe
next prev parent reply other threads:[~2004-08-21 16:22 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-08-02 13:11 serialize access to ide device Jens Axboe
2004-08-02 13:41 ` Geert Uytterhoeven
2004-08-02 13:49 ` Jens Axboe
2004-08-19 13:14 ` Bartlomiej Zolnierkiewicz
2004-08-19 12:32 ` Alan Cox
2004-08-21 10:32 ` Jens Axboe
2004-08-21 14:43 ` Bartlomiej Zolnierkiewicz
2004-08-21 16:21 ` Jens Axboe [this message]
2004-08-21 17:13 ` Bartlomiej Zolnierkiewicz
2004-08-23 12:15 ` Jens Axboe
2004-08-23 15:02 ` Bartlomiej Zolnierkiewicz
2004-08-23 14:50 ` Alan Cox
2004-08-23 15:10 ` Jens Axboe
2004-08-23 16:07 ` Jeff Garzik
2004-08-23 16:59 ` Jens Axboe
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