linux-ext4 - Re: spatch for 64-bit e2fsprogs (was Re: Fix device too big bug in mainline?)

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Message-ID: <20090804181850.GF9324@shell>
Date:	Tue, 4 Aug 2009 14:18:51 -0400
From:	Valerie Aurora <vaurora@...hat.com>
To:	Theodore Tso <tytso@....edu>
Cc:	Julia Lawall <julia@...u.dk>, linux-ext4@...r.kernel.org,
	Eric Sandeen <sandeen@...hat.com>,
	Ric Wheeler <rwheeler@...hat.com>,
	Jesper Andersen <jespera@...u.dk>
Subject: Re: spatch for 64-bit e2fsprogs (was Re: Fix device too big bug in mainline?)

On Tue, Aug 04, 2009 at 10:48:46AM -0400, Theodore Tso wrote:
> 
> If you want to start preparing for the semantic patches by preparing
> and testing the receipes, and then helping to flag those patches that
> contain some changes that contain some changes that can't be applied
> via spatch, that would be helpful.
> 
> Does that sound like a plan?

That sounds great.  We won't be able to automate everything, but after
this exercise, I bet spatch will be able to automate most of it.

Jesper, the patches you'll be interested in can be found in the
shared-64bit branch of:

git://git.kernel.org/pub/scm/fs/ext2/val/e2fsprogs.git

If getting these out of git is at any trouble at all, please ask and
I'll send them as plain patches.  The obvious candidates are things
like:

Author: Valerie Aurora Henson <vaurora@...hat.com>
Date:   Tue Feb 3 13:15:19 2009 -0800

    parse_num_blocks() -> parse_num_blocks2()

More difficult and interesting projects include:

Author: Valerie Aurora Henson <vaurora@...hat.com>
Date:   Tue Feb 3 13:15:19 2009 -0800

    New accessor functions for block group descriptor variables.

And the following three patches.  I attached a (huge) .cocci script
that I used to do part of that conversion.  I'm looking forward to
your professional version of it. :) This is a good patch for testing
newline fixup features.

-VAL

View attachment "group_desc.cocci" of type "text/plain" (5191 bytes)