linux-kernel - Re: [PATCH 08/11] ramoops: Move to fs/pstore/ram.c

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Date:	Tue, 15 May 2012 17:19:08 -0700
From:	Anton Vorontsov <anton.vorontsov@...aro.org>
To:	Kees Cook <keescook@...omium.org>
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Colin Cross <ccross@...roid.com>,
	Arnd Bergmann <arnd@...db.de>,
	John Stultz <john.stultz@...aro.org>, arve@...roid.com,
	Rebecca Schultz Zavin <rebecca@...roid.com>,
	Jesper Juhl <jj@...osbits.net>,
	Randy Dunlap <rdunlap@...otime.net>,
	Stephen Boyd <sboyd@...eaurora.org>,
	Thomas Meyer <thomas@...3r.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Marco Stornelli <marco.stornelli@...il.com>,
	WANG Cong <xiyou.wangcong@...il.com>,
	linux-kernel@...r.kernel.org, devel@...verdev.osuosl.org,
	linaro-kernel@...ts.linaro.org, patches@...aro.org,
	kernel-team@...roid.com
Subject: Re: [PATCH 08/11] ramoops: Move to fs/pstore/ram.c

Hello Kees,

On Mon, May 14, 2012 at 02:34:18PM -0700, Kees Cook wrote:
> On Fri, May 11, 2012 at 5:18 PM, Anton Vorontsov
> <anton.vorontsov@...aro.org> wrote:
> > Since ramoops was converted to pstore, it has nothing to do with character
> > devices nowadays. Instead, today it is just a RAM backend for pstore.
> >
> > The patch just moves things around. There are a few changes were needed
> > because of the move:
> >
> > 1. Kconfig and Makefiles fixups, of course.
> >
> > 2. In pstore/ram.c we have to play a bit with MODULE_PARAM_PREFIX, this
> >   is needed to keep user experience the same as with ramoops driver
> >   (i.e. so that ramoops.foo kernel command line arguments would still
> >   work).
> >
> > Signed-off-by: Anton Vorontsov <anton.vorontsov@...aro.org>
> 
> This consolidation seems good. I might prefer the move separated from
> the changes, just to make review easier, but I have no idea what
> that'll do to a bisect. :P

Yep, exactly, the point of making the changes together with the
move was to keep things bisectable.

> > --- /dev/null
> > +++ b/fs/pstore/ram.c
> 
> "ram.ko" seems like an awfully generic modbule name. Should this be
> called pstore_ram.* instead, like was done for the header file?

Oh, right you are. Actually, if I'd change the module name via
Makefile (i.e. ramoops-objs = ram.o), we can get rid of
MODULE_PARAM_PREFIX hack. So, I'd just name the module ramoops.ko
name, but keep the ram.c source file name.

Thanks for the hint.

> And unless anyone objects, I have no problem letting the built-in name
> change too.
> 
> > --- /dev/null
> > +++ b/include/linux/pstore_ram.h
> > @@ -0,0 +1,17 @@
> > +#ifndef __RAMOOPS_H
> > +#define __RAMOOPS_H
> 
> This define should probably change just to avoid confusion.

Fixed, thanks!

-- 
Anton Vorontsov
Email: cbouatmailru@...il.com
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