Re: compat_ioctl: ignore RAID_VERSION ioctl
From: Michael S. Tsirkin <hidden>
Date: 2010-01-31 09:06:42
Also in:
dm-devel, lkml
On Sat, Jan 30, 2010 at 11:02:10PM +0100, Arnd Bergmann wrote:
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 <arnd@arndb.de> --- On Saturday 30 January 2010, Michael S. Tsirkin wrote:quoted
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/sda9Does this help?
Yes, this fixes it.
quoted hunk ↗ jump to hunk
--- 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)