linux-kernel - Re: [RFC] Rollback FS

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Message-ID: <20131020123521.GA15627@thunk.org>
Date:	Sun, 20 Oct 2013 08:35:21 -0400
From:	Theodore Ts'o <tytso@....edu>
To:	jiaweiwei <jiaweiwei.xiyou@...il.com>
Cc:	Vyacheslav Dubeyko <slava@...eyko.com>,
	"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 07:37:01PM +0800, jiaweiwei wrote:
> 
> Any file system should rollback but not specific ones. Therefore, a
> VFS like mechanism should be designed and implemented.

And what if the blocks or inodes used for the files that were deleted
have already been used and overwritten?

> Maybe, I would give detail design, thanks.

I encourage you to try to do that; you might find it to be an
educational exercise.

Best regards,

					- Ted
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