linux-kernel - Re: [regression] CD-DA delay needed after insertion (http://bugzilla.kernel.org/show

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Date:	Tue, 30 Sep 2008 11:45:05 -0600
From:	Matthew Wilcox <matthew@....cx>
To:	Monty Montgomery <monty@...h.org>
Cc:	Geert Uytterhoeven <Geert.Uytterhoeven@...ycom.com>,
	James Bottomley <James.Bottomley@...senpartnership.com>,
	linux-scsi@...r.kernel.org,
	Linux Kernel Development <linux-kernel@...r.kernel.org>
Subject: Re: [regression] CD-DA delay needed after insertion (http://bugzilla.kernel.org/show_bug.cgi?id=10974)

On Tue, Sep 30, 2008 at 11:41:51AM -0600, Matthew Wilcox wrote:
> On Tue, Sep 30, 2008 at 01:32:15PM -0400, Monty Montgomery wrote:
> > On Tue, Sep 30, 2008 at 11:21 AM, Geert Uytterhoeven
> > <Geert.Uytterhoeven@...ycom.com> wrote:
> > 
> > >> (May I ask-- why the hard starting/stopping of the interface?  Power saving?]
> > why the calls to sg_start?
> 
> In this case, sg means scatter/gather, and it's a purely internal
> interface.  It does not start/stop the drive, nor the scsi interface.

That'll teach me to comment before reading the entire thread.  Please
ignore this mistaken explanation; I thought you were commenting on a
patch, not on the commands used at the command line.

-- 
Matthew Wilcox				Intel Open Source Technology Centre
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."
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