From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rich Pixley Subject: newbie question Date: Thu, 20 May 2010 14:17:20 -0700 Message-ID: <4BF5A6E0.6040703@palm.com> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: Sender: linux-nilfs-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-ID: Content-Type: text/plain; charset="us-ascii"; format="flowed" To: linux-nilfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Can nilfs "roll back" to a previous state of the file system? For example, at some time = T(N), I have a file system in a known good state. So I check point it before taking a risky action. Then I take a risky action which leads me to the file system state at T(N+1). Sometimes, my risky action will be fine and I'll want to continue on. Other times, my risky action will result in a polluted, useless collection of data which I would like to discard. I understand that at time T(N+1) nilfs will allow me to create a checkpoint of T(N) which can be mounted read-only. What I'm asking is if nilfs can discard the state at T(N+1) and "roll back" to the state at T(N) as though T(N+1) had never happened. Can nilfs do this kind of "roll back"? --rich -- To unsubscribe from this list: send the line "unsubscribe linux-nilfs" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html