linux-kernel - Re: [RFC] VFS: FS CoW using redirection

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: Windows password security audit tool. GUI, reports in PDF.

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

Date:	Wed, 23 Aug 2006 19:24:02 +0200
From:	Jörn Engel <joern@...nheim.fh-wedel.de>
To:	Al Boldi <a1426z@...ab.com>
Cc:	Eric Van Hensbergen <ericvh@...il.com>,
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [RFC] VFS: FS CoW using redirection

On Sun, 9 July 2006 15:50:36 +0300, Al Boldi wrote:
> 
> Consider something simple like this:
> 
> VFS - anyFS1 (r/w) used normally, unless ENotFound, then redirect read to
>     \              anyFS2, or CoW from anyFS2 to anyFS1.
>       anyFS2 (r/o) used normally.

That concept is known as union mount.  Jan Blunck did some patches in
that direction, you might be able to find them in the archives.  If
not, just send him a mail.

Jörn

-- 
...one more straw can't possibly matter...
-- Kirby Bakken
-
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/