From: Greg KH Subject: [patch 16/28] compat_ioctl: hook up compat handler for FIEMAP ioctl Date: Thu, 13 Aug 2009 12:40:37 -0700 Message-ID: <20090813194338.094383349@mini.kroah.org> References: <20090813194021.446758568@mini.kroah.org> Cc: stable-review@kernel.org, torvalds@linux-foundation.org, akpm@linux-foundation.org, alan@lxorguk.ukuu.org.uk, Eric Sandeen , , Mark Lord , Arnd Bergmann , Josef Bacik , Jan Kara To: linux-kernel@vger.kernel.org, stable@kernel.org Return-path: Content-Disposition: inline; filename=compat_ioctl-hook-up-compat-handler-for-fiemap-ioctl.patch In-Reply-To: <20090813194554.GA13947@kroah.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-ext4.vger.kernel.org 2.6.27-stable review patch. If anyone has any objections, please let us know. ------------------ From: Eric Sandeen commit 69130c7cf96ea853dc5be599dd6a4b98907d39cc upstream. The FIEMAP_IOC_FIEMAP mapping ioctl was missing a 32-bit compat handler, which means that 32-bit suerspace on 64-bit kernels cannot use this ioctl command. The structure is nicely aligned, padded, and sized, so it is just this simple. Tested w/ 32-bit ioctl tester (from Josef) on a 64-bit kernel on ext4. Signed-off-by: Eric Sandeen Cc: Cc: Mark Lord Cc: Arnd Bergmann Cc: Josef Bacik Cc: Jan Kara Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds Signed-off-by: Greg Kroah-Hartman --- fs/compat_ioctl.c | 1 + 1 file changed, 1 insertion(+) --- a/fs/compat_ioctl.c +++ b/fs/compat_ioctl.c @@ -1910,6 +1910,7 @@ COMPATIBLE_IOCTL(FIONCLEX) COMPATIBLE_IOCTL(FIOASYNC) COMPATIBLE_IOCTL(FIONBIO) COMPATIBLE_IOCTL(FIONREAD) /* This is also TIOCINQ */ +COMPATIBLE_IOCTL(FS_IOC_FIEMAP) /* 0x00 */ COMPATIBLE_IOCTL(FIBMAP) COMPATIBLE_IOCTL(FIGETBSZ)