linux-ext4 - Re: [PATCH][TRIVIAL][e2fsprogs] Rename uninit_groups to uninit

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Date:	Thu, 10 Apr 2008 12:05:53 -0500
From:	"Jose R. Santos" <jrs@...ibm.com>
To:	Andreas Dilger <adilger@....com>
Cc:	"Theodore Ts'o" <tytso@....edu>, linux-ext4@...r.kernel.org
Subject: Re: [PATCH][TRIVIAL][e2fsprogs] Rename uninit_groups to uninit_bg.

On Thu, 10 Apr 2008 10:33:14 -0600
Andreas Dilger <adilger@....com> wrote:

> On Apr 02, 2008  09:03 -0500, Jose R. Santos wrote:
> > Rename uninit_groups to uninit_bg.
> > 
> > <meta_bg> <flex_bg> <uninit_groups> <lazy_bg>
> > 
> > One of these things is not like the others,
> > One of these things just doesn't belong,
> > Can you tell which thing is not like the others
> > By the time I finish my song?
> >        	    by Joe Raposo
> 
> Jose,
> I don't disagree with this change, but can you please keep compatibility
> with the old name for some time, as we have been using the "uninit_groups"
> name for some time already.

I thought that since the uninit patches where still cooking in the pu
branch and not made part of any official release, changing a feature
name without caring about backward compatibility was OK.  Or is it to
maintain compatibility with Luster?
 
> > diff --git a/lib/e2p/feature.c b/lib/e2p/feature.c
> > index cf37447..3fc4f91 100644
> > --- a/lib/e2p/feature.c
> > +++ b/lib/e2p/feature.c
> > @@ -45,7 +45,7 @@ static struct feature feature_list[] = {
> >  	{	E2P_FEATURE_RO_INCOMPAT, EXT4_FEATURE_RO_COMPAT_HUGE_FILE,
> >  			"huge_file" },
> >  	{	E2P_FEATURE_RO_INCOMPAT, EXT4_FEATURE_RO_COMPAT_GDT_CSUM,
> > -			"uninit_groups" },
> > +			"uninit_bg" },
> 
> I think we just need an additional stanza here after this one which has
> the old name in it.  That way lookup-by-value will find uninit_bg, and
> lookup-by-name will still work.

I will send another patch with the added stanza.
 
> Cheers, Andreas
> --
> Andreas Dilger
> Sr. Staff Engineer, Lustre Group
> Sun Microsystems of Canada, Inc.
> 



-JRS
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