From: Jens Axboe <axboe@suse.de>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: "C.Y.M." <syphir@syphir.sytes.net>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: Changes to ide-probe.c in 2.6.9-rc2 causing improper detection
Date: Tue, 14 Sep 2004 13:09:34 +0200 [thread overview]
Message-ID: <20040914110932.GP2336@suse.de> (raw)
In-Reply-To: <1095156346.16572.2.camel@localhost.localdomain>
On Tue, Sep 14 2004, Alan Cox wrote:
> On Maw, 2004-09-14 at 07:06, Jens Axboe wrote:
> > Alan, I bet there are a lot of these. Maybe we should consider letting
> > the user manually flag support for FLUSH_CACHE, at least it is in their
> > hands then.
>
> You are assuming the drive supports "FLUSH_CACHE" just because it
> doesn't error it. Thats a good way to have accidents.
I've yet to see one that lies about it, if timing is to be believed.
That would be close to criminal behaviour from the vendor, imho.
> The patch I posted originally did turn wcache off for barrier if no
> flush cache support was present but had a small bug so that bit got
> dropped.
That would be fine, though.
--
Jens Axboe
next prev parent reply other threads:[~2004-09-14 11:12 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-09-14 2:26 Changes to ide-probe.c in 2.6.9-rc2 causing improper detection C.Y.M.
2004-09-14 6:06 ` Jens Axboe
2004-09-14 7:03 ` C.Y.M.
2004-09-14 7:06 ` Jens Axboe
2004-09-14 7:15 ` Jens Axboe
2004-09-14 8:20 ` C.Y.M.
2004-09-14 8:28 ` Jens Axboe
2004-09-14 10:09 ` Alan Cox
2004-09-14 11:12 ` Jens Axboe
2004-09-14 10:35 ` Alan Cox
2004-09-14 11:43 ` Jens Axboe
2004-09-14 11:19 ` Alan Cox
2004-09-14 12:21 ` Jens Axboe
2004-09-14 11:37 ` Gene Heskett
2004-09-14 10:07 ` Alan Cox
2004-09-14 11:11 ` Jens Axboe
2004-09-14 11:59 ` Bartlomiej Zolnierkiewicz
2004-09-14 13:15 ` Jens Axboe
2004-09-14 10:05 ` Alan Cox
2004-09-14 11:09 ` Jens Axboe [this message]
2004-09-14 12:07 ` Bartlomiej Zolnierkiewicz
2004-09-14 15:18 ` Jeff Garzik
2004-09-14 15:25 ` Jens Axboe
2004-09-14 15:05 ` Alan Cox
2004-09-14 15:33 ` Mark Lord
2004-09-14 15:39 ` Mark Lord
2004-09-14 15:51 ` Jeff Garzik
2004-09-14 15:06 ` Alan Cox
2004-09-14 15:45 ` Jeff Garzik
2004-09-14 15:31 ` Mark Lord
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