linux-ext4 - Re: [RFC PATCH] fs: xattr-based FS_IOC

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Date:	Tue, 7 Jan 2014 07:49:35 -0800
From:	Christoph Hellwig <hch@...radead.org>
To:	Jan Kara <jack@...e.cz>
Cc:	"Darrick J. Wong" <darrick.wong@...cle.com>,
	Aurelien Jarno <aurelien@...el32.net>,
	Theodore Ts'o <tytso@....edu>,
	Alexander Viro <viro@...iv.linux.org.uk>,
	Rob Browning <rlb@...aultvalue.org>,
	Dave Chinner <david@...morbit.com>,
	Miklos Szeredi <miklos@...redi.hu>,
	linux-fsdevel <linux-fsdevel@...r.kernel.org>,
	linux-kernel@...r.kernel.org, linux-ext4@...r.kernel.org
Subject: Re: [RFC PATCH] fs: xattr-based FS_IOC_[GS]ETFLAGS interface

On Tue, Jan 07, 2014 at 01:48:31PM +0100, Jan Kara wrote:
>   I have to say I'm not thrilled by the idea of juggling strings in
> userspace and in kernel to set a flag for an inode...

Nevermind the massive amounts of code that sit in the filesystem.

Although my recent ACL patches are the first step towards handling the
existing semantically overloaded xattrs in common code.  Unless Al has
a valid reason to disagree I'd like to put a big NAK on adding any new
xattrs that aren't stored on disk as-is but provide magic functionality,
as they are pain to implement, maintain, and audit.
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