Merge branch 'for-2.6.36' of git://git.kernel.dk/linux-2.6-block

[firefly-linux-kernel-4.4.55.git] / drivers / block / nbd.c

diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index 2e74e7d475cabc3413f672087a3f5ca70adce5d4..0daa422aa281c4a833299d86252d06abdc337fa4 100644 (file)
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -4,7 +4,7 @@
  * Note that you can not swap over this thing, yet. Seems to work but
  * deadlocks sometimes - you can not swap over TCP in general.
  * 
- * Copyright 1997-2000, 2008 Pavel Machek <pavel@suse.cz>
+ * Copyright 1997-2000, 2008 Pavel Machek <pavel@ucw.cz>
  * Parts copyright 2001 Steven Whitehouse <steve@chygwyn.com>
  *
  * This file is released under GPLv2 or later.
@@ -24,6 +24,7 @@
 #include <linux/errno.h>
 #include <linux/file.h>
 #include <linux/ioctl.h>
+#include <linux/smp_lock.h>
 #include <linux/compiler.h>
 #include <linux/err.h>
 #include <linux/kernel.h>
@@ -716,9 +717,11 @@ static int nbd_ioctl(struct block_device *bdev, fmode_t mode,
        dprintk(DBG_IOCTL, "%s: nbd_ioctl cmd=%s(0x%x) arg=%lu\n",
                        lo->disk->disk_name, ioctl_cmd_to_ascii(cmd), cmd, arg);
 
+       lock_kernel();
        mutex_lock(&lo->tx_lock);
        error = __nbd_ioctl(bdev, lo, cmd, arg);
        mutex_unlock(&lo->tx_lock);
+       unlock_kernel();
 
        return error;
 }
@@ -726,7 +729,7 @@ static int nbd_ioctl(struct block_device *bdev, fmode_t mode,
 static const struct block_device_operations nbd_fops =
 {
        .owner =        THIS_MODULE,
-       .locked_ioctl = nbd_ioctl,
+       .ioctl =        nbd_ioctl,
 };
 
 /*