linux-kernel - Re: [PATCH 05/10] AXFS: axfs

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Date:	Thu, 21 Aug 2008 08:17:21 -0700
From:	"Jared Hulbert" <jaredeh@...il.com>
To:	"Arnd Bergmann" <arnd@...db.de>
Cc:	"David Woodhouse" <dwmw2@...radead.org>, carsteno@...ibm.com,
	Linux-kernel@...r.kernel.org, linux-embedded@...r.kernel.org,
	linux-mtd <linux-mtd@...ts.infradead.org>,
	"Jörn Engel" <joern@...fs.org>
Subject: Re: [PATCH 05/10] AXFS: axfs_profiling.c

> /proc has the same ABI restrictions as sysfs. We more or less stopped
> allowing new files in /proc some 5 years ago for this reason. I didn't
> even read beyond the word /proc to know that what you do here is wrong.
> debugfs is normally easier to use than procfs as well, you just
> define some file_operations with read/write callbacks and call
> debugfs_create_file with the path name below /sys/kernel/debug.

no /proc.
thanks for the explanation.

So /sys/kernel/debug/axfs/volume0 would work?

> 4) no profiling at all
> The profiling code has certainly been useful to you during development,
> and you should keep that code around for your own work on it,
> but maybe you should not push that upstream, because regular users
> are not going to need it.

Nope.  Profiling is absolutely fundamental to how AXFS works.  Read
the [PATCH 00/10] thread again.
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