Messages in this thread Patch in this message | | | Date | Thu, 13 Aug 2009 12:50:32 -0700 | From | Greg KH <> | Subject | [patch 57/74] compat_ioctl: hook up compat handler for FIEMAP ioctl |
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2.6.30-stable review patch. If anyone has any objections, please let us know.
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From: Eric Sandeen <sandeen@redhat.com>
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 <sandeen@redhat.com> Cc: <linux-ext4@vger.kernel.org> Cc: Mark Lord <lkml@rtr.ca> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Josef Bacik <josef@redhat.com> Cc: Jan Kara <jack@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
--- fs/compat_ioctl.c | 1 + 1 file changed, 1 insertion(+)
--- a/fs/compat_ioctl.c +++ b/fs/compat_ioctl.c @@ -1915,6 +1915,7 @@ 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)
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