From: Ted Ts'o <tytso@mit.edu>
Subject: Re: [PATCH] ext4: Support "check=none" "nocheck" mount options
Date: Wed, 11 Jan 2012 10:26:46 -0500
Message-ID: <20120111152646.GB4589@thunk.org>
References: <20120110174118.GB3015@zod.bos.redhat.com>
 <4F0C78CD.6070809@redhat.com>
 <7A0721E1-689F-4B9B-BD8C-86A03DDF20CE@dilger.ca>
 <4F0DA724.2040506@redhat.com>
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Cc: Andreas Dilger <adilger@dilger.ca>,
	Josh Boyer <jwboyer@redhat.com>, linux-ext4@vger.kernel.org,
	kernel-team@fedoraproject.org
To: Eric Sandeen <sandeen@redhat.com>
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In-Reply-To: <4F0DA724.2040506@redhat.com>
Sender: linux-ext4-owner@vger.kernel.org

On Wed, Jan 11, 2012 at 09:13:40AM -0600, Eric Sandeen wrote:
> > In any case, I can't imagine why a user would have this set for a kernel
> > option that might have last been valid 10 years ago, and why the 5 users
> > in the world that might have this set cannot simply remove it from their
> > fstab, since it does absolutely nothing?
> 
> Well, I agree that it should be deprecated, but that's a separate issue from
> making ext4 handle all current ext2/3 mount options.
> 
> Let's just push this one in, and can do another patch to add the dire
> deprecation warnings to all filesystems, ok?  Then in 5 more years we can
> remember to remove it ;)

If we're going to deprecate it, we should deprecate it for *all* of
the ext 2/3/4 file systems.  Otherwise let's not bother, and keep the
no-op for backwards compatibility.  If we are going to support ext4
taking over for ext2/3, then yes we need to support any common mount
options, and if we want to deprecate a particular option in ext4, we
should try to deprecate them in ext2/3 as well.

       	      		     	       	  - Ted