From: Rich Pixley <rich.pixley-C65YXLrEp3M@public.gmane.org>
To: linux-nilfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: newbie question
Date: Thu, 20 May 2010 14:17:20 -0700 [thread overview]
Message-ID: <4BF5A6E0.6040703@palm.com> (raw)
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
next reply other threads:[~2010-05-20 21:17 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-20 21:17 Rich Pixley [this message]
[not found] ` <AANLkTikeGWuCeGVELFipNnA_EQ-UHm4fbTvi6-qBiRBi@mail.gmail.com>
[not found] ` <AANLkTikeGWuCeGVELFipNnA_EQ-UHm4fbTvi6-qBiRBi-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-05-20 22:18 ` newbie question Jérôme Poulin
[not found] ` <4BF5A6E0.6040703-C65YXLrEp3M@public.gmane.org>
2010-05-20 22:30 ` Ryusuke Konishi
[not found] ` <20100521.073026.88488718.ryusuke-sG5X7nlA6pw@public.gmane.org>
2010-05-27 17:40 ` K. Richard Pixley
[not found] ` <4BFEAE99.3030100-pBcMlXao8V4@public.gmane.org>
2010-05-28 5:55 ` Jiro SEKIBA
[not found] ` <4C00071A.4010508@noir.com>
[not found] ` <4C00071A.4010508-pBcMlXao8V4@public.gmane.org>
2010-05-28 21:14 ` K. Richard Pixley
2010-05-28 21:16 ` K. Richard Pixley
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4BF5A6E0.6040703@palm.com \
--to=rich.pixley-c65yxlrep3m@public.gmane.org \
--cc=linux-nilfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox