linux-kernel - Re: [PATCH v7 17/22] Get rid of most mentions of XIP in ext2

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Message-ID: <20140410142625.GK5727@linux.intel.com>
Date:	Thu, 10 Apr 2014 10:26:25 -0400
From:	Matthew Wilcox <willy@...ux.intel.com>
To:	Jan Kara <jack@...e.cz>
Cc:	Matthew Wilcox <matthew.r.wilcox@...el.com>,
	linux-fsdevel@...r.kernel.org, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v7 17/22] Get rid of most mentions of XIP in ext2

On Wed, Apr 09, 2014 at 12:04:35PM +0200, Jan Kara wrote:
> On Sun 23-03-14 15:08:43, Matthew Wilcox wrote:
> > The only remaining usage is userspace's 'xip' option.
>   Looks good. You can add:
> Reviewed-by: Jan Kara <jack@...e.cz>

I've been thinking about this patch, and I'm not happy with it any more :-)

I want to migrate people away from using 'xip' to 'dax' without breaking
anybody's scripts.  So I'm thinking about adding a new 'dax' option and
having the 'xip' option print a warning and force-enable the 'dax' option.
That way people who might have scripts to look for 'xip' in /proc/mounts
won't break.
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