linux-ext4 - Re: [PATCH v8 00/41] Richacls

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Message-ID: <20151006094935.GA14144@infradead.org>
Date:	Tue, 6 Oct 2015 02:49:35 -0700
From:	Christoph Hellwig <hch@...radead.org>
To:	Austin S Hemmelgarn <ahferroin7@...il.com>
Cc:	Andreas Gruenbacher <agruenba@...hat.com>,
	Christoph Hellwig <hch@...radead.org>,
	Alexander Viro <viro@...iv.linux.org.uk>,
	Theodore Ts'o <tytso@....edu>,
	Andreas Dilger <adilger.kernel@...ger.ca>,
	"J. Bruce Fields" <bfields@...ldses.org>,
	Jeff Layton <jlayton@...chiereds.net>,
	Trond Myklebust <trond.myklebust@...marydata.com>,
	Anna Schumaker <anna.schumaker@...app.com>,
	linux-ext4@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
	linux-fsdevel <linux-fsdevel@...r.kernel.org>,
	linux-nfs@...r.kernel.org, linux-api@...r.kernel.org
Subject: Re: [PATCH v8 00/41] Richacls

On Mon, Oct 05, 2015 at 02:58:36PM -0400, Austin S Hemmelgarn wrote:
> I think the point is that a new VFS feature that is easy to integrate in
> multiple filesystems should have support for those filesystems.  A decade
> ago, just having ext* support would probably have been fine, but these days,
> XFS, BTRFS, and F2FS are used just as much (if not more) on production
> systems as ext4, and having support for them right from the start would
> significantly help with adoption of richacls.

That's one reason.  The other is that actually wiring it up for more
than a single consumer shows its actually reasonable generic.  I don't
want to end up with a situration like Posix ACLs again where different
file systems using different on disk formats again.
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