linux-ext4 - Re: [Resubmit][PATCH 5/5] Secure Deletion and Trash-Bin Support for Ext4

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Date:	Thu, 01 Feb 2007 20:22:28 -0600
From:	Dave Kleikamp <shaggy@...ux.vnet.ibm.com>
To:	Andreas Dilger <adilger@...sterfs.com>
Cc:	Mingming Cao <cmm@...ibm.com>,
	Dave Kleikamp <shaggy@...ux.external-vnet.ibm.com>,
	Nikolai Joukov <kolya@...sunysb.edu>,
	Harry Papaxenopoulos <harry@...sunysb.edu>,
	linux-ext4@...r.kernel.org, ezk@...sunysb.edu
Subject: Re: [Resubmit][PATCH 5/5] Secure Deletion and Trash-Bin Support
	for Ext4

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

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