linux-kernel - Re: [RFC] Rollback FS

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Date:	Sun, 20 Oct 2013 19:37:01 +0800
From:	jiaweiwei <jiaweiwei.xiyou@...il.com>
To:	Vyacheslav Dubeyko <slava@...eyko.com>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Harry Wei <harryxiyou@...il.com>
Subject: Re: [RFC] Rollback FS

On Sun, Oct 20, 2013 at 6:43 PM, Vyacheslav Dubeyko <slava@...eyko.com> wrote:
> Anyway, you need to use Copy-On-Write (COW) approach for such file system.
> But there are file systems that implements snapshot approach yet: NILFS2, ext3cow,
> Next3, and so on.
>

Any file system should rollback but not specific ones. Therefore, a
VFS like mechanism should be designed and implemented.

> Do you really want to implement something likewise snapshot feature in a file system
> from the scratch?
>

Maybe, I would give detail design, thanks.




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