]> err.no Git - linux-2.6/commit
proc: proc_get_inode() should get module only once
authorDenis V. Lunev <den@openvz.org>
Fri, 23 May 2008 20:04:47 +0000 (13:04 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Sat, 24 May 2008 16:56:11 +0000 (09:56 -0700)
commitc4185a0e019387f5ad6e99009804965531fa1fab
treec7d4e534808d4052373f5f7d4b78adaf57d051b9
parent53978d0a7a27eb036b9bf33c4caa06257a9dbed7
proc: proc_get_inode() should get module only once

Any file under /proc/net opened more than once leaked the refcounter
on the module it belongs to.

The problem is that module_get is called for each file opening while
module_put is called only when /proc inode is destroyed. So, lets put
module counter if we are dealing with already initialised inode.

Addresses http://bugzilla.kernel.org/show_bug.cgi?id=10737

Signed-off-by: Denis V. Lunev <den@openvz.org>
Cc: David Miller <davem@davemloft.net>
Cc: Patrick McHardy <kaber@trash.net>
Acked-by: Pavel Emelyanov <xemul@openvz.org>
Acked-by: Robert Olsson <robert.olsson@its.uu.se>
Acked-by: Eric W. Biederman <ebiederm@xmission.com>
Reported-by: Roland Kletzing <devzero@web.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
fs/proc/inode.c