From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arnd Bergmann Subject: compat_ioctl: ignore RAID_VERSION ioctl Date: Sat, 30 Jan 2010 23:02:10 +0100 Message-ID: <201001302302.10574.arnd@arndb.de> References: <20100130205353.GA3168@redhat.com> Mime-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20100130205353.GA3168@redhat.com> Sender: linux-raid-owner@vger.kernel.org To: "Michael S. Tsirkin" Cc: "Rafael J. Wysocki" , Linux Kernel Mailing List , neilb@suse.de, linux-raid@vger.kernel.org, dm-devel@redhat.com, maan@systemlinux.org List-Id: dm-devel.ids md ioctls are now handled by the md driver itself, but mdadm may call RAID_VERSION on other devices as well. Mark the command as IGNORE_IOCTL so this fails silently rather than printing an annoying message. Signed-off-by: Arnd Bergmann --- On Saturday 30 January 2010, Michael S. Tsirkin wrote: > Under 2.6.33-rcX (at least rc5 and rc6, didn't check earlier versions), > I started seeing these messages in dmesg (I do not see these messages on 2.6.32): > > [ 16.528951] ioctl32(mdadm:2243): Unknown cmd fd(3) cmd(800c0910){t:09;sz:12} arg(ffb7f9c4) on /dev/sda9 Does this help? --- a/fs/compat_ioctl.c +++ b/fs/compat_ioctl.c @@ -1038,6 +1038,8 @@ COMPATIBLE_IOCTL(FIOQSIZE) #ifdef CONFIG_BLOCK /* loop */ IGNORE_IOCTL(LOOP_CLR_FD) +/* md calls this on random blockdevs */ +IGNORE_IOCTL(RAID_VERSION) /* SG stuff */ COMPATIBLE_IOCTL(SG_SET_TIMEOUT) COMPATIBLE_IOCTL(SG_GET_TIMEOUT)