block: push down BKL into .locked_ioctl

As a preparation for the removal of the big kernel
lock in the block layer, this removes the BKL
from the common ioctl handling code, moving it
into every single driver still using it.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>

drivers/block/swim.c

@@ -20,6 +20,7 @@
 #include <linux/fd.h>
 #include <linux/slab.h>
 #include <linux/blkdev.h>
+#include <linux/smp_lock.h>
 #include <linux/hdreg.h>
 #include <linux/kernel.h>
 #include <linux/delay.h>
@@ -690,7 +691,9 @@ static int floppy_ioctl(struct block_device *bdev, fmode_t mode,
 	case FDEJECT:
 		if (fs->ref_count != 1)
 			return -EBUSY;
+		lock_kernel();
 		err = floppy_eject(fs);
+		unlock_kernel();
 		return err;
 
 	case FDGETPRM:
@@ -753,7 +756,7 @@ static const struct block_device_operations floppy_fops = {
 	.owner		 = THIS_MODULE,
 	.open		 = floppy_open,
 	.release	 = floppy_release,
-	.locked_ioctl	 = floppy_ioctl,
+	.ioctl		 = floppy_ioctl,
 	.getgeo		 = floppy_getgeo,
 	.media_changed	 = floppy_check_change,
 	.revalidate_disk = floppy_revalidate,