linux-kernel - Re: [PATCH][v4] Modify loop device to be able to manage partitions of the disk image

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Date:	Wed, 19 Mar 2008 22:39:10 +0100
From:	Laurent Vivier <Laurent.Vivier@...l.net>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	randy.dunlap@...cle.com, jens.axboe@...cle.com,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH][v4]  Modify loop device to be able to manage
	partitions of the disk image


Le mercredi 19 mars 2008 à 14:28 -0700, Andrew Morton a écrit :
> On Wed, 19 Mar 2008 21:24:41 +0100
> Laurent Vivier <Laurent.Vivier@...l.net> wrote:
> 
> > Le mercredi 19 mars 2008 __ 13:11 -0700, Randy Dunlap a __crit :
> > > On Wed, 19 Mar 2008 13:36:07 +0100 Laurent Vivier wrote:
> > > 
> > > > This patch allows to use loop device with partitionned disk image.
> > > > 
> > > > Original behavior of loop is not modified.
> > > > 
> > > > A new parameter is introduced to define how many partition we want to be
> > > > able to manage per loop device. This parameter is "max_part".
> > > 
> > > What happened to the update to Documentation/kernel-parameters.txt
> > > that was in v3?
> > 
> > Well, perhaps I didn't understand the comment of Andrew:
> > 
> > "This shouldn't be needed."
> > 
> > I though it means I should remove it. So, Andrew ???
> 
> No, given that all module_param() options are available via the boot
> command line when the module is linked into vmlinux, we don't document them
> separately.

"No" is "To document max_part is not needed"

or

"No" is "you must not remove parameter documentation from your patch" ?

> There should be a way of auto-generating all the documentation for all the
> module parameters from their MODULE_PARM_DESC's.  And there probably is,
> but I'm not sure how this is done (?)
> 
> (does `make help', fails to spot it).
> 
> You can do `modinfo loop' but that probably doesn't work if
> CONFIG_BLK_DEV_LOOP=y?
> 
> 
> 
> I assume you tested the "loop.max_part=N" option?

Yes, I did (with N=63)

Regards,
Laurent
-- 
------------- Laurent.Vivier@...l.net ---------------
"The best way to predict the future is to invent it."
- Alan Kay

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