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Re: rfc: kill ino64 mount option

To: Christoph Hellwig <hch@xxxxxx>
Subject: Re: rfc: kill ino64 mount option
From: Nathan Scott <nscott@xxxxxxxxxx>
Date: Mon, 30 Jun 2008 09:13:34 +1000
Cc: xfs@xxxxxxxxxxx
In-reply-to: <20080628152303.GA22484@xxxxxx>
References: <20080627153928.GA31384@xxxxxx> <20080628000914.GE29319@disturbed> <20080628152303.GA22484@xxxxxx>
Sender: xfs-bounce@xxxxxxxxxxx
On Sat, 2008-06-28 at 17:23 +0200, Christoph Hellwig wrote:
> On Sat, Jun 28, 2008 at 10:09:14AM +1000, Dave Chinner wrote:
> > On Fri, Jun 27, 2008 at 05:39:28PM +0200, Christoph Hellwig wrote:
> > > Does anyone have objections to kill the ino64 mount option?  It's purely
> > > a debug tool to force inode numbers outside of the range representable
> > > in 32bits and is quite invasive for something that could easily be
> > > debugged by just having a large enough filesystem..
> > 
> > It's the "large enough fs" that is the problem. XFSQA uses
> > small partitions for the most part, and this allows testing
> > of 64 bit inode numbers with a standard qa config.
> Well, it allows showing 64bit inode numbers to userspace.  All XFS
> internal codepathes are still using the smaller inode numbers and we
> only add a fixed offset to them just before the inode number is returned
> to userspace.

I'd vote for removing it - I've used it in the past, and it didn't do
what I wanted (its not really useful for XFS testing) and the confusion
it causes with inode64 is not worth it.



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