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From: Arnd Bergmann <arnd@arndb.de>
To: "Jared Hulbert" <jaredeh@gmail.com>
Subject: Re: [PATCH 05/10] AXFS: axfs_profiling.c
Date: Fri, 22 Aug 2008 22:37:19 +0200
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On Thursday 21 August 2008, Jared Hulbert wrote:
> 1) same mount point -
> I don't see how this works without an ioctl.  I can't just make up
> files in my mounted filesystem.   You expect the mounted version to
> match input to the mkfs.  I'd not be happy with an ioctl.  You can
> just read it.
> 
> 2) sysfs -
> I agree with Carsten, I don't see how this fits in the sysfs hierarchy.
> 
> 3) debugfs -
> I don't know diddly about this.

Ok, so now yet another suggestion, which may sound a little strange:

oprofilefs

I believe you can use the oprofile infrastructure to record data
about file accesses, even independent of the file system you
are looking at.

It's probably a lot of work to get it right, but I would be worth it.

	Arnd <><