linux-ext4 - Re: [Ocfs2-devel] [PATCH 2/2] OCFS2: Allow huge (> 16 TiB) volumes to mount

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Message-ID: <20100713081013.GA31479@mail.oracle.com>
Date:	Tue, 13 Jul 2010 01:10:13 -0700
From:	Joel Becker <Joel.Becker@...cle.com>
To:	"Patrick J. LoPresti" <lopresti@...il.com>
Cc:	Andreas Dilger <adilger@...ger.ca>, linux-fsdevel@...r.kernel.org,
	linux-ext4@...r.kernel.org, linux-kernel@...r.kernel.org,
	ocfs2-devel@....oracle.com
Subject: Re: [Ocfs2-devel] [PATCH 2/2] OCFS2: Allow huge (> 16 TiB) volumes
 to mount

On Mon, Jul 12, 2010 at 10:00:10PM -0700, Patrick J. LoPresti wrote:
> On Mon, Jul 12, 2010 at 9:46 PM, Andreas Dilger <adilger@...ger.ca> wrote:
> > On 2010-07-12, at 19:08, Patrick J. LoPresti wrote:
> >>
> >> Are you suggesting I need to do this before my patch is accepted at
> >> all?  Or is this a refactoring that can happen later?
> >
> > I'm just suggesting it should be done at some point.  I thought it would be better to do it first, rather than add yet another copy of this code.  That said, I hate to block useful fixes because of cleanup (and I have no control over OCFS2 anyway :-).  However, I've found that once the fix is in people usually forget (or become too busy) to do the cleanup and it just lingers on unseen.
> 
> I hear you.
> 
> I do not object to factoring out the basic addressability test and
> using it in my patch, leaving it for others -- like yourself :-) -- to
> modify other file systems to invoke it.

	I think you should modify ext3 and xfs, as they clearly are
partaking of this functionality.  I'll happily review it for you.  Put
the call in fs/libfs.c.  Call it generic_check_addressable(struct
super_block *super).

Joel


-- 

"The only way to get rid of a temptation is to yield to it."
         - Oscar Wilde 

Joel Becker
Consulting Software Developer
Oracle
E-mail: joel.becker@...cle.com
Phone: (650) 506-8127
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