linux-kernel - Re: [PATCH 1/3] fs, xfs: introduce S_IOMAP

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Message-Id: <1501518747.586018.1058450568.4B6F28FB@webmail.messagingengine.com>
Date:   Mon, 31 Jul 2017 12:32:27 -0400
From:   Colin Walters <walters@...bum.org>
To:     Dan Williams <dan.j.williams@...el.com>
Cc:     "Darrick J. Wong" <darrick.wong@...cle.com>,
        Jan Kara <jack@...e.cz>, linux-nvdimm@...ts.01.org,
        Dave Chinner <david@...morbit.com>,
        linux-kernel@...r.kernel.org, linux-xfs@...r.kernel.org,
        Jeff Moyer <jmoyer@...hat.com>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        Andy Lutomirski <luto@...nel.org>,
        "linux-fsdevel" <linux-fsdevel@...r.kernel.org>,
        Ross Zwisler <ross.zwisler@...ux.intel.com>,
        Christoph Hellwig <hch@....de>
Subject: Re: [PATCH 1/3] fs, xfs: introduce S_IOMAP_IMMUTABLE

On Mon, Jul 31, 2017, at 12:29 PM, Dan Williams wrote:
> 
> How is S_CONTENTS_IMMUTABLE different than S_IMMUTABLE?

We still want the ability to make hardlinks.