lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:	Sun, 20 Oct 2013 20:59:14 +0800
From:	jiaweiwei <jiaweiwei.xiyou@...il.com>
To:	"Theodore Ts'o" <tytso@....edu>,
	jiaweiwei <jiaweiwei.xiyou@...il.com>,
	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 8:35 PM, Theodore Ts'o <tytso@....edu> wrote:
> 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?

A good catch. Following ideas would be suitable.

1, Keep the blocks or inodes by a parameter we give.
2, Keep the blocks or inodes for several seconds.

>
>> Maybe, I would give detail design, thanks.
>
> I encourage you to try to do that; you might find it to be an
> educational exercise.
>

Yeah, I would, thanks.


-- 
 do kernel
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Powered by blists - more mailing lists