linux-ext4 - patch compat_ioctl-hook-up-compat-handler-for-fiemap-ioctl.patch added to 2.6.27-stable tree

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Message-Id: <20090812192823.0A311485F9@coco.kroah.org>
Date:	Wed, 12 Aug 2009 12:26:53 -0700
From:	<gregkh@...e.de>
To:	sandeen@...hat.com, akpm@...ux-foundation.org, arnd@...db.de,
	gregkh@...e.de, jack@...e.cz, josef@...hat.com,
	linux-ext4@...r.kernel.org, lkml@....ca,
	torvalds@...ux-foundation.org
Cc:	<stable@...nel.org>, <stable-commits@...r.kernel.org>
Subject: patch compat_ioctl-hook-up-compat-handler-for-fiemap-ioctl.patch added to 2.6.27-stable tree


This is a note to let you know that we have just queued up the patch titled

    Subject: compat_ioctl: hook up compat handler for FIEMAP ioctl

to the 2.6.27-stable tree.  Its filename is

    compat_ioctl-hook-up-compat-handler-for-fiemap-ioctl.patch

A git repo of this tree can be found at 
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary


>From 69130c7cf96ea853dc5be599dd6a4b98907d39cc Mon Sep 17 00:00:00 2001
From: Eric Sandeen <sandeen@...hat.com>
Date: Thu, 6 Aug 2009 15:07:37 -0700
Subject: compat_ioctl: hook up compat handler for FIEMAP ioctl

From: Eric Sandeen <sandeen@...hat.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@...hat.com>
Cc: <linux-ext4@...r.kernel.org>
Cc: Mark Lord <lkml@....ca>
Cc: Arnd Bergmann <arnd@...db.de>
Cc: Josef Bacik <josef@...hat.com>
Cc: Jan Kara <jack@...e.cz>
Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@...ux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 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)


Patches currently in stable-queue which might be from sandeen@...hat.com are

queue-2.6.27/hugetlbfs-fix-i_blocks-accounting.patch
queue-2.6.27/compat_ioctl-hook-up-compat-handler-for-fiemap-ioctl.patch
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