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

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Date:	Thu, 1 Feb 2007 12:17:58 -0500 (EST)
From:	Nikolai Joukov <kolya@...sunysb.edu>
To:	Dave Kleikamp <shaggy@...ux.vnet.ibm.com>
cc:	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

> Right now I've only really looked at the jfs patch, since that's what
> I'm the most familiar with.  I'll try to take a look at the rest of them
> later.

Thank you!

> I don't have a strong opinion for or against the function and your
> design.  The only potential problem I see in the approach is that
> the .trash directory may conflict with some other use of the same name.
> Since this is primarily vfs function, you'll probably get a wider
> audience on linux-fsdevel.

Well, I guess lost+found has the same problem but it is not a problem at
all to pick some other (longer) name.

> Have you considered putting ALL of the function in the vfs layer?  It
> looks like this could be done without touching any code in the
> individual file systems.

Unfortunately, we need some file system-specific code to access per-file
secure deletion and per-file trash bit attributes.  These attributes are
supported only by some file systems and in different ways.  We need no
file system-specific code to support trash-bin deletion for whole file
systems.

Nikolai.
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