tree 4d3079f33198272fe0dfc6a08fe63dad659a374e
parent c62a11fd9555007b1caab83b5bcbb443a43e32bb
author Alexey Dobriyan <adobriyan@gmail.com> 1221402093 -0400
committer Theodore Ts'o <tytso@mit.edu> 1221402093 -0400

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

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>