From: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
Date: Tue, 3 Nov 2009 17:45:11 +0000 (-0600)
Subject: eCryptfs: Handle ioctl calls with unlocked and compat functions
X-Git-Tag: v2.6.27.51~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1fef595f75ceb07fe1334d918feff6f788c2d8ba;p=pandora-kernel.git

eCryptfs: Handle ioctl calls with unlocked and compat functions

commit c43f7b8fb03be8bcc579bfc4e6ab70eac887ab55 upstream.

Lower filesystems that only implemented unlocked_ioctl weren't being
passed ioctl calls because eCryptfs only checked for
lower_file->f_op->ioctl and returned -ENOTTY if it was NULL.

eCryptfs shouldn't implement ioctl(), since it doesn't require the BKL.
This patch introduces ecryptfs_unlocked_ioctl() and
ecryptfs_compat_ioctl(), which passes the calls on to the lower file
system.

https://bugs.launchpad.net/ecryptfs/+bug/469664

Reported-by: James Dupin <james.dupin@gmail.com>
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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