md: move compat_ioctl handling into md.c
The RAID ioctls are only implemented in md.c, so the
handling for them should also be moved there from
fs/compat_ioctl.c.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Neil Brown <neilb@suse.de>
Cc: Andre Noll <maan@systemlinux.org>
Cc: linux-raid@vger.kernel.org
Signed-off-by: NeilBrown <neilb@suse.de>
diff --git a/drivers/md/md.c b/drivers/md/md.c
index bcc6668..0856437 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -44,6 +44,7 @@
#include <linux/random.h>
#include <linux/reboot.h>
#include <linux/file.h>
+#include <linux/compat.h>
#include <linux/delay.h>
#include <linux/raid/md_p.h>
#include <linux/raid/md_u.h>
@@ -5691,6 +5692,25 @@
abort:
return err;
}
+#ifdef CONFIG_COMPAT
+static int md_compat_ioctl(struct block_device *bdev, fmode_t mode,
+ unsigned int cmd, unsigned long arg)
+{
+ switch (cmd) {
+ case HOT_REMOVE_DISK:
+ case HOT_ADD_DISK:
+ case SET_DISK_FAULTY:
+ case SET_BITMAP_FILE:
+ /* These take in integer arg, do not convert */
+ break;
+ default:
+ arg = (unsigned long)compat_ptr(arg);
+ break;
+ }
+
+ return md_ioctl(bdev, mode, cmd, arg);
+}
+#endif /* CONFIG_COMPAT */
static int md_open(struct block_device *bdev, fmode_t mode)
{
@@ -5756,6 +5776,9 @@
.open = md_open,
.release = md_release,
.ioctl = md_ioctl,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = md_compat_ioctl,
+#endif
.getgeo = md_getgeo,
.media_changed = md_media_changed,
.revalidate_disk= md_revalidate,