From: Arnd Bergmann <arnd@arndb.de>
Date: Wed, 10 Feb 2010 15:14:04 +0000 (+0100)
Subject: compat_ioctl: ignore RAID_VERSION ioctl
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=f79f11852831ba8837e82b73364e6f1cd0145499;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git

compat_ioctl: ignore RAID_VERSION ioctl

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.

Reported-by: "Michael S. Tsirkin" <m.s.tsirkin@gmail.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
index c5c45de1a2ee..b6f23b25370e 100644
--- 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)