Subject: Re: How to capture all file system writes
To: None <tls@rek.tjls.com>
From: Jason Thorpe <thorpej@wasabisystems.com>
List: tech-kern
Date: 10/22/2003 08:22:52 
On Wednesday, October 22, 2003, at 08:00  AM, Thor Lancelot Simon wrote:

> I share your strong preference for that sort of design.  I note that
> Linux has even had great success using a similar design to add 
> journaling
> to their filesystem.

I don't think that Linux uses a pseudo-device shim layer for 
journaling.  They do, however, use physical block logging (IIRC).  
Physical block logging (rather than logical operation logging) is a 
not-uncommon journaling strategy.

         -- Jason R. Thorpe <thorpej@wasabisystems.com>