linux-kernel - Re: [PATCH -mmotm] fault-injection: add ability to export fault

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]

Message-Id: <20110726161714.9b1b5084.akpm@linux-foundation.org>
Date:	Tue, 26 Jul 2011 16:17:14 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Akinobu Mita <akinobu.mita@...il.com>
Cc:	linux-kernel@...r.kernel.org, Per Forlin <per.forlin@...aro.org>,
	Jens Axboe <axboe@...nel.dk>,
	Christoph Lameter <cl@...ux-foundation.org>,
	Pekka Enberg <penberg@...nel.org>,
	Matt Mackall <mpm@...enic.com>, linux-mm@...ck.org
Subject: Re: [PATCH -mmotm] fault-injection: add ability to export
 fault_attr in arbitrary directory

On Wed, 27 Jul 2011 08:06:37 +0900
Akinobu Mita <akinobu.mita@...il.com> wrote:

> init_fault_attr_dentries() is used to export fault_attr via debugfs.  But
> it can only export it in debugfs root directory.
> 
> Per Forlin is working on mmc_fail_request which adds support to inject
> data errors after a completed host transfer in MMC subsystem.
> 
> The fault_attr for mmc_fail_request should be defined per mmc host and
> export it in debugfs directory per mmc host like
> /sys/kernel/debug/mmc0/mmc_fail_request.
> 
> init_fault_attr_dentries() doesn't help for mmc_fail_request.  So this
> introduces debugfs_create_fault_attr() which is able to create a directory
> in the arbitrary directory and replace init_fault_attr_dentries().

The name is wrong.  "debugfs_create_fault_attr" refers to some function
exported by the debugfs code.  But this function is exported by the
fault injection code.

I edited the patch and renamed it to fault_create_debugfs_attr, which
may not make a ton of sense - please let me know if there's something
more appropriate.

I suggest that all symbols exported by this system should start with
"fault_".  ("fault_injection_" would be more appropriate, but it's
rather lengthy).  Please take a look through the code, see if there's
anything else we should clean up.

--
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/