From: Jesse Barnes <jbarnes@engr.sgi.com>
To: James Bottomley <James.Bottomley@steeleye.com>
Cc: Andrew Morton <akpm@osdl.org>,
Linux Kernel <linux-kernel@vger.kernel.org>,
SCSI Mailing List <linux-scsi@vger.kernel.org>,
jeremy@sgi.com, jes@sgi.com
Subject: Re: [PATCH] use mmiowb in qla1280.c
Date: Mon, 25 Oct 2004 09:18:01 -0700 [thread overview]
Message-ID: <200410250918.01786.jbarnes@engr.sgi.com> (raw)
In-Reply-To: <1098634812.10906.38.camel@mulgrave>
On Sunday, October 24, 2004 9:20 am, James Bottomley wrote:
> On Thu, 2004-10-21 at 19:17, Jesse Barnes wrote:
> > There are a few spots in qla1280.c that don't need a full PCI write flush
> > to the device, but rather a simple write ordering guarantee. This patch
> > changes some of the PIO reads that cause write flushes into mmiowb calls
> > instead, which is a lighter weight way of ensuring ordering.
> >
> > Jes and James, can you ack this and/or push it in via the SCSI BK tree?
>
> This doesn't seem to work:
>
> CC [M] drivers/scsi/qla1280.o
> drivers/scsi/qla1280.c: In function `qla1280_64bit_start_scsi':
> drivers/scsi/qla1280.c:3404: warning: implicit declaration of function
> `mmiowb'
>
> MODPOST
> *** Warning: "mmiowb" [drivers/scsi/qla1280.ko] undefined!
Only works in Andrew's tree until he pushes mmiowb to Linus.
Jesse
next prev parent reply other threads:[~2004-10-25 16:18 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <200410211613.19601.jbarnes@engr.sgi.com>
2004-10-21 23:17 ` [PATCH] use mmiowb in qla1280.c Jesse Barnes
2004-10-22 9:53 ` Jes Sorensen
2004-10-24 16:20 ` James Bottomley
2004-10-25 16:18 ` Jesse Barnes [this message]
2004-10-25 19:02 ` Andrew Morton
2004-10-25 19:33 ` Jesse Barnes
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