From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ryusuke Konishi Subject: Re: [PATCH] nilfs2: unbreak compat ioctl Date: Thu, 10 Nov 2011 12:49:18 +0900 (JST) Message-ID: <20111110.124918.255392182.ryusuke@osrg.net> References: <1320697117.1396.4.camel@localhost.localdomain> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1320697117.1396.4.camel-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org> Sender: linux-nilfs-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-ID: Content-Type: Text/Plain; charset="us-ascii" To: thomas-VsYtu1Qij5c@public.gmane.org Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-nilfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org On Mon, 07 Nov 2011 21:18:37 +0100, Thomas Meyer wrote: > I guess commit 828b1c50ae11e6dda68f8dfefe43b74c7182b157 incidentally broke > all other compat ioctls. make them work again. > > Signed-off-by: Thomas Meyer > --- > fs/nilfs2/ioctl.c | 2 -- > 1 files changed, 0 insertions(+), 2 deletions(-) > > diff --git a/fs/nilfs2/ioctl.c b/fs/nilfs2/ioctl.c > index 41d6743..1773a98 100644 > --- a/fs/nilfs2/ioctl.c > +++ b/fs/nilfs2/ioctl.c > @@ -842,8 +842,6 @@ long nilfs_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) > case FS_IOC32_GETVERSION: > cmd = FS_IOC_GETVERSION; > break; > - default: > - return -ENOIOCTLCMD; > } > return nilfs_ioctl(filp, cmd, (unsigned long)compat_ptr(arg)); > } > -- > 1.7.7 Hi, thank you for pointing this out. But, this patch looks to prevent compat_sys_ioctl() from handling other compatible ioctls that compat_ioctl_check_table function detects. For instance, fiemap (FS_IOC_FIEMAP) is handled via the function. I think we should only redirect own ioctl commands (i.e. NILFS_IOCTL_xxxx) to the nilfs_ioctl() call. Regards, Ryusuke Konishi -- To unsubscribe from this list: send the line "unsubscribe linux-nilfs" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html