From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:51667 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933572AbcE3U3e (ORCPT ); Mon, 30 May 2016 16:29:34 -0400 Subject: Patch "btrfs: bugfix: handle FS_IOC32_{GETFLAGS,SETFLAGS,GETVERSION} in btrfs_ioctl" has been added to the 4.6-stable tree To: luke@dashjr.org, dsterba@suse.com, gregkh@linuxfoundation.org, jbacik@fb.com, luke-jr+git@utopios.org Cc: , From: Date: Mon, 30 May 2016 13:23:18 -0700 Message-ID: <1464639798112255@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled btrfs: bugfix: handle FS_IOC32_{GETFLAGS,SETFLAGS,GETVERSION} in btrfs_ioctl to the 4.6-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: btrfs-bugfix-handle-fs_ioc32_-getflags-setflags-getversion-in-btrfs_ioctl.patch and it can be found in the queue-4.6 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From 4c63c2454eff996c5e27991221106eb511f7db38 Mon Sep 17 00:00:00 2001 From: Luke Dashjr Date: Thu, 29 Oct 2015 08:22:21 +0000 Subject: btrfs: bugfix: handle FS_IOC32_{GETFLAGS,SETFLAGS,GETVERSION} in btrfs_ioctl From: Luke Dashjr commit 4c63c2454eff996c5e27991221106eb511f7db38 upstream. 32-bit ioctl uses these rather than the regular FS_IOC_* versions. They can be handled in btrfs using the same code. Without this, 32-bit {ch,ls}attr fail. Signed-off-by: Luke Dashjr Reviewed-by: Josef Bacik Reviewed-by: David Sterba Signed-off-by: David Sterba Signed-off-by: Greg Kroah-Hartman --- fs/btrfs/ctree.h | 1 + fs/btrfs/file.c | 2 +- fs/btrfs/inode.c | 2 +- fs/btrfs/ioctl.c | 21 +++++++++++++++++++++ 4 files changed, 24 insertions(+), 2 deletions(-) --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -4122,6 +4122,7 @@ void btrfs_test_inode_set_ops(struct ino /* ioctl.c */ long btrfs_ioctl(struct file *file, unsigned int cmd, unsigned long arg); +long btrfs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg); int btrfs_ioctl_get_supported_features(void __user *arg); void btrfs_update_iflags(struct inode *inode); void btrfs_inherit_iflags(struct inode *inode, struct inode *dir); --- a/fs/btrfs/file.c +++ b/fs/btrfs/file.c @@ -2956,7 +2956,7 @@ const struct file_operations btrfs_file_ .fallocate = btrfs_fallocate, .unlocked_ioctl = btrfs_ioctl, #ifdef CONFIG_COMPAT - .compat_ioctl = btrfs_ioctl, + .compat_ioctl = btrfs_compat_ioctl, #endif .copy_file_range = btrfs_copy_file_range, .clone_file_range = btrfs_clone_file_range, --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -10184,7 +10184,7 @@ static const struct file_operations btrf .iterate = btrfs_real_readdir, .unlocked_ioctl = btrfs_ioctl, #ifdef CONFIG_COMPAT - .compat_ioctl = btrfs_ioctl, + .compat_ioctl = btrfs_compat_ioctl, #endif .release = btrfs_release_file, .fsync = btrfs_sync_file, --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -5552,3 +5552,24 @@ long btrfs_ioctl(struct file *file, unsi return -ENOTTY; } + +#ifdef CONFIG_COMPAT +long btrfs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg) +{ + switch (cmd) { + case FS_IOC32_GETFLAGS: + cmd = FS_IOC_GETFLAGS; + break; + case FS_IOC32_SETFLAGS: + cmd = FS_IOC_SETFLAGS; + break; + case FS_IOC32_GETVERSION: + cmd = FS_IOC_GETVERSION; + break; + default: + return -ENOIOCTLCMD; + } + + return btrfs_ioctl(file, cmd, (unsigned long) compat_ptr(arg)); +} +#endif Patches currently in stable-queue which might be from luke@dashjr.org are queue-4.6/btrfs-bugfix-handle-fs_ioc32_-getflags-setflags-getversion-in-btrfs_ioctl.patch