From: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
Subject: Re: [Resubmit][PATCH 5/5] Secure Deletion and Trash-Bin Support
	for Ext4
Date: Thu, 01 Feb 2007 20:22:28 -0600
Message-ID: <1170382948.18617.30.camel@kleikamp.austin.ibm.com>
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Cc: Mingming Cao <cmm@us.ibm.com>,
	Dave Kleikamp <shaggy@linux.external-vnet.ibm.com>,
	Nikolai Joukov <kolya@cs.sunysb.edu>,
	Harry Papaxenopoulos <harry@cs.sunysb.edu>,
	linux-ext4@vger.kernel.org, ezk@cs.sunysb.edu
To: Andreas Dilger <adilger@clusterfs.com>
In-Reply-To: <20070202014004.GB24328@mail.clusterfs.com>
Sender: linux-ext4-owner@vger.kernel.org

On Thu, 2007-02-01 at 18:40 -0700, Andreas Dilger wrote:
> On Feb 01, 2007  12:41 -0800, Mingming Cao wrote:
> > On Thu, 2007-02-01 at 19:32 +0000, Dave Kleikamp wrote:
> > > Yeah, I did see that.  I wonder adding some inode or file operation just
> > > to query the existence of those attributes (or something more generic)
> > > would be too ugly.
> > 
> > I gave a brief thought on that yesterday, it was not very pretty:)
> 
> Actually, the major filesystems (ext3, reiserfs, jfs, xfs) all use the
> same lsattr/chattr ioctl as ext2 (EXT2_IOC_GETFLAGS).  Maybe this code
> can just do an ioctl inside the kernel?

Al Viro will love that one.  :-)

Another idea might be to store those attribute flags in the generic
inode.

Shaggy
-- 
David Kleikamp
IBM Linux Technology Center