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Date: Tue, 1 Jan 2008 11:16:55 +0900
From: Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp>
To: serue@...ibm.com
Cc: linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH][RFC] Simple tamper-proof device filesystem.
Hello.
Thank you for reviewing.
Serge E. Hallyn wrote:
> > This time, I'm implementing this filesystem as an extension to tmpfs
> > because what this filesystem does are nothing but check filename and
> > its attributes in addition to what tmpfs does.
>
> To integrate this nicer into tmpfs, at least define TMPFS_IS_MAC as 1
> and TMPFS_NOT_MAC as 0 and pass those values instead of just 1 and 0.
>
Question to everybody:
Not all users need this extension, so I'm worrying that integrating
this extension into tmpfs increases memory usage needlessly.
May I implement this filesystem as an extension to tmpfs
provided that users can enable/disable this extension via kernel config?
> Again, I should think you'd actually want to take blkdev_open() from
> fs/block_dev.c and chrdev_open() from fs/char_dev.c. Surely your
> method of grabbing it here is not acceptable for upstream code.
I see.
Regards.
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