Commit 69130c7c authored Aug 06, 2009 by Eric Sandeen Committed by Linus Torvalds Aug 07, 2009

compat_ioctl: hook up compat handler for FIEMAP ioctl



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>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent 0035fe00

fs/compat_ioctl.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -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)

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