From: akpm@linux-foundation.org Subject: [patch 07/15] compat_ioctl: hook up compat handler for FIEMAP ioctl Date: Thu, 06 Aug 2009 15:07:37 -0700 Message-ID: <200908062207.n76M7b3d004529@imap1.linux-foundation.org> Cc: akpm@linux-foundation.org, sandeen@redhat.com, arnd@arndb.de, jack@suse.cz, josef@redhat.com, linux-ext4@vger.kernel.org, lkml@rtr.ca, stable@kernel.org To: torvalds@linux-foundation.org Return-path: Received: from smtp1.linux-foundation.org ([140.211.169.13]:44970 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751760AbZHFWJK (ORCPT ); Thu, 6 Aug 2009 18:09:10 -0400 Sender: linux-ext4-owner@vger.kernel.org List-ID: From: Eric Sandeen 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 Cc: Signed-off-by: Andrew Morton --- fs/compat_ioctl.c | 1 + 1 file changed, 1 insertion(+) diff -puN fs/compat_ioctl.c~compat_ioctl-hook-up-compat-handler-for-fiemap-ioctl fs/compat_ioctl.c --- a/fs/compat_ioctl.c~compat_ioctl-hook-up-compat-handler-for-fiemap-ioctl +++ a/fs/compat_ioctl.c @@ -1905,6 +1905,7 @@ 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) _