From: Alexey Dobriyan <adobriyan@gmail.com>
Date: Sun, 16 Nov 2008 16:05:22 +0000 (-0500)
Subject: ext4: fix #11321: create /proc/ext4/*/stats more carefully
X-Git-Tag: v2.6.27.8~24
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=43b7c32ff29ffbdc1163919c084938c8634ddcfb;p=pandora-kernel.git

ext4: fix #11321: create /proc/ext4/*/stats more carefully

(cherry picked from commit 899fc1a4cf404747de2666534d508804597ee22f)

ext4 creates per-suberblock directory in /proc/ext4/ . Name used as
basis is taken from bdevname, which, surprise, can contain slash.

However, proc while allowing to use proc_create("a/b", parent) form of
PDE creation, assumes that parent/a was already created.

bdevname in question is 'cciss/c0d0p9', directory is not created and all
this stuff goes directly into /proc (which is real bug).

Warning comes when _second_ partition is mounted.

http://bugzilla.kernel.org/show_bug.cgi?id=11321

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

Reading git-diff-tree failed