[PATCH] switch fs3270 to ->compat_ioctl

Again easy because all ioctls are compat clean.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

arch/s390/kernel/compat_ioctl.c

@@ -64,13 +64,6 @@ COMPATIBLE_IOCTL(BIODASDCMFENABLE)
 COMPATIBLE_IOCTL(BIODASDCMFDISABLE)
 COMPATIBLE_IOCTL(BIODASDREADALLCMB)
 
-COMPATIBLE_IOCTL(TUBICMD)
-COMPATIBLE_IOCTL(TUBOCMD)
-COMPATIBLE_IOCTL(TUBGETI)
-COMPATIBLE_IOCTL(TUBGETO)
-COMPATIBLE_IOCTL(TUBSETMOD)
-COMPATIBLE_IOCTL(TUBGETMOD)
-
 COMPATIBLE_IOCTL(TAPE390_DISPLAY)
 
 /* s390 doesn't need handlers here */

drivers/s390/char/fs3270.c

@@ -319,9 +319,8 @@ fs3270_write(struct file *filp, const char *data, size_t count, loff_t *off)
 /*
  * process ioctl commands for the tube driver
  */
-static int
-fs3270_ioctl(struct inode *inode, struct file *filp,
-	     unsigned int cmd, unsigned long arg)
+static long
+fs3270_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 {
 	struct fs3270 *fp;
 	struct raw3270_iocb iocb;
@@ -331,6 +330,7 @@ fs3270_ioctl(struct inode *inode, struct file *filp,
 	if (!fp)
 		return -ENODEV;
 	rc = 0;
+	lock_kernel();
 	switch (cmd) {
 	case TUBICMD:
 		fp->read_command = arg;
@@ -356,6 +356,7 @@ fs3270_ioctl(struct inode *inode, struct file *filp,
 			rc = -EFAULT;
 		break;
 	}
+	unlock_kernel();
 	return rc;
 }
 
@@ -491,12 +492,13 @@ fs3270_close(struct inode *inode, struct file *filp)
 }
 
 static struct file_operations fs3270_fops = {
-	.owner	 = THIS_MODULE,		/* owner */
-	.read	 = fs3270_read,		/* read */
-	.write	 = fs3270_write,	/* write */
-	.ioctl	 = fs3270_ioctl,	/* ioctl */
-	.open	 = fs3270_open,		/* open */
-	.release = fs3270_close,	/* release */
+	.owner		 = THIS_MODULE,		/* owner */
+	.read		 = fs3270_read,		/* read */
+	.write		 = fs3270_write,	/* write */
+	.unlocked_ioctl	 = fs3270_ioctl,	/* ioctl */
+	.compat_ioctl	 = fs3270_ioctl,	/* ioctl */
+	.open	 	= fs3270_open,		/* open */
+	.release 	= fs3270_close,		/* release */
 };
 
 /*