linux-kernel - Re: [PATCH 01/24] Unionfs: Documentation

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Tue, 9 Jan 2007 09:53:45 +0000
From:	Christoph Hellwig <hch@...radead.org>
To:	Erez Zadok <ezk@...sunysb.edu>
Cc:	Andrew Morton <akpm@...l.org>,
	Shaya Potter <spotter@...columbia.edu>,
	Josef 'Jeff' Sipek <jsipek@...sunysb.edu>,
	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	hch@...radead.org, viro@....linux.org.uk, torvalds@...l.org,
	mhalcrow@...ibm.com, David Quigley <dquigley@...sunysb.edu>
Subject: Re: [PATCH 01/24] Unionfs: Documentation

On Mon, Jan 08, 2007 at 07:03:35PM -0500, Erez Zadok wrote:
> However, I must caution that a file system like ecryptfs is very different
> from Unionfs, the latter being a fan-out file system---and both have very
> different goals.  The common code between the two file systems, at this
> stage, is not much (and we've already extracted some of it into the "stackfs
> layer").

I think that's an very important point.  We have a chance to get that
non-fanout filesystems right quite easily - something I wished that would
have been done before the ecryptfs merge - while getting fan-out stackable
filesystems is a really hard task.  In addition to that I know exactly
one fan-out stackable filesystem that is posisbly useful, which is unionfs.
Because of that I'm much more inclined to add VFS asistance for this
particular problem (unioning) instead of adding complex infrastructure
to solve a general problem that people don't benefit from.

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/