diff --git a/drivers/md/dm-linear.c b/drivers/md/dm-linear.c
index 6449bcd..fa35838 100644
--- a/drivers/md/dm-linear.c
+++ b/drivers/md/dm-linear.c
@@ -110,8 +110,7 @@
 	return 0;
 }
 
-static int linear_ioctl(struct dm_target *ti, struct inode *inode,
-			struct file *filp, unsigned int cmd,
+static int linear_ioctl(struct dm_target *ti, unsigned int cmd,
 			unsigned long arg)
 {
 	struct linear_c *lc = (struct linear_c *) ti->private;
diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
index 9bf3460c..c681d5e 100644
--- a/drivers/md/dm-mpath.c
+++ b/drivers/md/dm-mpath.c
@@ -1395,8 +1395,7 @@
 	return -EINVAL;
 }
 
-static int multipath_ioctl(struct dm_target *ti, struct inode *inode,
-			   struct file *filp, unsigned int cmd,
+static int multipath_ioctl(struct dm_target *ti, unsigned int cmd,
 			   unsigned long arg)
 {
 	struct multipath *m = (struct multipath *) ti->private;
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 327de03..5f0f4c8b 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -345,7 +345,7 @@
 	}
 
 	if (tgt->type->ioctl)
-		r = tgt->type->ioctl(tgt, inode, file, cmd, arg);
+		r = tgt->type->ioctl(tgt, cmd, arg);
 
 out:
 	dm_table_put(map);
diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h
index 3f8d4e7..a567bbc 100644
--- a/include/linux/device-mapper.h
+++ b/include/linux/device-mapper.h
@@ -69,8 +69,7 @@
 
 typedef int (*dm_message_fn) (struct dm_target *ti, unsigned argc, char **argv);
 
-typedef int (*dm_ioctl_fn) (struct dm_target *ti, struct inode *inode,
-			    struct file *filp, unsigned int cmd,
+typedef int (*dm_ioctl_fn) (struct dm_target *ti, unsigned int cmd,
 			    unsigned long arg);
 
 typedef int (*dm_merge_fn) (struct dm_target *ti, struct bvec_merge_data *bvm,