Date: Fri, 15 Mar 2013 05:13:23 +0000
From: Al Viro <viro@ZenIV.linux.org.uk>
To: "J. R. Okajima" <hooanon05@yahoo.co.jp>
Cc: Miklos Szeredi <miklos@szeredi.hu>,
        Andrew Morton <akpm@linux-foundation.org>,
        torvalds@linux-foundation.org, linux-fsdevel@vger.kernel.org,
        linux-kernel@vger.kernel.org, hch@infradead.org, apw@canonical.com,
        nbd@openwrt.org, neilb@suse.de, jordipujolp@gmail.com,
        ezk@fsl.cs.sunysb.edu, dhowells@redhat.com, sedat.dilek@googlemail.com,
        mszeredi@suse.cz
Subject: Re: [PATCH 0/9] overlay filesystem: request for inclusion (v17)
Message-ID: <20130315051322.GX21522@ZenIV.linux.org.uk>
References: <1363184193-1796-1-git-send-email-miklos@szeredi.hu>
 <20130313160854.54ac0491044371b4db214698@linux-foundation.org>
 <CAJfpeguvhJaoSBDKEXoJFn_C=52aXbC9L2ALJvp6ekwEGyQX_g@mail.gmail.com>
 <20130315012541.GU21522@ZenIV.linux.org.uk>
 <19058.1363320936@jrobl>
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On Fri, Mar 15, 2013 at 02:09:14PM +0900, J. R. Okajima wrote:

> If so, it has a big disadvantage for the layer-fs (or branch-fs) to have
> to implement a new method for whiteout.
> 
> Overlayfs implements whiteout as symlink+xattr which consumes an
> inode. And you don't like it, right?
> What I showed is another generic approach without xattr where the new
> method to whiteout is unnecessary.

I'm yet to see the reason that would make implementing that method a big
disadvantage, TBH...
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