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From: James Bottomley <James.Bottomley@SteelEye.com>
To: ltuikov@yahoo.com
Cc: Andrew Morton <akpm@osdl.org>,
	mdr@sgi.com, linux-scsi@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: Infinite retries reading the partition table
Date: Thu, 07 Dec 2006 15:15:03 -0600	[thread overview]
Message-ID: <1165526103.4698.50.camel@mulgrave.il.steeleye.com> (raw)
In-Reply-To: <367656.23632.qm@web31810.mail.mud.yahoo.com>

On Thu, 2006-12-07 at 11:14 -0800, Luben Tuikov wrote:
> It is.  If good_bytes=0 then nothing is up to date and uptodate should
> be set to 0.

That's not a correct assumption.  Zero transfer commands, like TEST UNIT
READY are perfectly happy to complete successfully with good_bytes == 0.

> Look at my comment before the function call:
>    /* A number of bytes were successfully read. ...
> 
> I repeat again: it doesn't make sense to call scsi_end_request
> with uptodate=1 and good_bytes=0, since _no bytes are uptodate_.

We can certainly debate that, but it's not appropriate to do it as part
of an unrelated patch.

James



  reply	other threads:[~2006-12-07 21:15 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-11-30  1:22 Infinite retries reading the partition table Luben Tuikov
2006-12-01  5:47 ` Andrew Morton
2006-12-01  6:34   ` Luben Tuikov
2006-12-01  7:29     ` Andrew Morton
2006-12-01  8:32       ` Luben Tuikov
2006-12-05 20:40         ` Michael Reed
2006-12-06  5:00           ` Luben Tuikov
2006-12-06  5:08             ` Andrew Morton
2006-12-06  6:10               ` Luben Tuikov
2006-12-06 15:59               ` James Bottomley
2006-12-06 20:24                 ` Luben Tuikov
2006-12-07 18:16                   ` James Bottomley
2006-12-07 19:14                     ` Luben Tuikov
2006-12-07 21:15                       ` James Bottomley [this message]
2006-12-06 10:48       ` Etienne.Vogt
2006-11-30  1:53 Luben Tuikov

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