Subject: Re: nfs optimization and veriexec
To: YAMAMOTO Takashi <yamt@mwd.biglobe.ne.jp>
From: Brett Lymn <blymn@baesystems.com.au>
List: tech-kern
Date: 10/29/2007 21:59:06
On Mon, Oct 29, 2007 at 04:38:07PM +0900, YAMAMOTO Takashi wrote:
> [ re-add cc: tech-kern ]
> 

sorry, my bad.

> 
> yes, but i really don't want to have veriexec specific code in
> each filesystems.  can't veriexec be modified to deal with it?
> 

At the moment, I am not sure.  I know that the checks were put in at
the file system specific level back in the days when I used the device
and inode as the unique identifier for the file.  Perhaps we can pull
the check back to the VFS level now that we are using a filehandle for
the unique identifier - iff we can get the filehandle for the file at
the VFS layer then we can probably put the veriexec check in the
appropriate VFS calls and fix the problem.

-- 
Brett Lymn
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