linux-kernel - [PATCH 2/5] DebugFS : coding style fixes

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]

Date:	Thu, 23 Nov 2006 02:52:56 -0500
From:	Mathieu Desnoyers <compudj@...stal.dyndns.org>
To:	Greg KH <greg@...ah.com>
Cc:	ltt-dev@...fik.org, linux-kernel@...r.kernel.org
Subject: [PATCH 2/5] DebugFS : coding style fixes

Minor coding style fixes along the way : 80 cols and a white space.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>


* Greg KH (greg@...ah.com) wrote:
> On Mon, Nov 20, 2006 at 01:18:38PM -0500, Mathieu Desnoyers wrote:
> > Hi Greg,
> > 
> > I just had to add inotify support to my LTTng consumer so I could inform it
> > of the presence of new CPUs (for CPU hotplug). I noticed that no
> > notification event was being sent when a debugfs file is created from within
> > the kernel through debugfs_create. There are probably other notifications
> > missing, but here is the patch adding the one I care about. Should it be added
> > in libfs or in debugfs ?
> 
> So does this fix the inotify issue?
> 
> > A second problem I noticed is when a caller calls debugfs_create_file more than
> > once : the result is that the debugfs_remove will fail. I guess the second call
> > to debugfs_create_file increments the reference counts (there is not fix for
> > this issue in my patch).
> > 
> > Third problem : a failing call to debugfs_remove keeps the filesystem pinned.
> > (fixed by calling simple_release_fs in the error path).
> > 
> > The third problem : When a process is in a directory, the call to simple_rmdir
> > will fail. Debugfs does not use its return value. I noticed that calling
> > simple_unlink on a directory when simple_rmdir fails removes the directory that
> > would otherwise be left there. I am not sure if this approach is correct
> > through.
> > 
> > This patch is against Linux 2.6.18.
> 
> Care to split this into 4 different patches (you seem to have 4 issues
> here), so that it's easier to see them, and it will follow the
> 1-patch-per-issue rule?
> 
> thanks,
> 
> greg k-h
> 
OpenPGP public key:              http://krystal.dyndns.org:8080/key/compudj.gpg
Key fingerprint:     8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE 9A68 

View attachment "patch02-debugfs-codingstyle.diff" of type "text/plain" (590 bytes)