From 337eb00a2c3a421999c39c94ce7e33545ee8baa7 Mon Sep 17 00:00:00 2001
From: Alessio Igor Bogani <abogani@texware.it>
Date: Tue, 12 May 2009 15:10:54 +0200
Subject: Push BKL down into ->remount_fs()

[xfs, btrfs, capifs, shmem don't need BKL, exempt]

Signed-off-by: Alessio Igor Bogani <abogani@texware.it>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 drivers/usb/core/inode.c | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'drivers/usb')

diff --git a/drivers/usb/core/inode.c b/drivers/usb/core/inode.c
index dff5760a37f6..ffe75e83787c 100644
--- a/drivers/usb/core/inode.c
+++ b/drivers/usb/core/inode.c
@@ -39,6 +39,7 @@
 #include <linux/parser.h>
 #include <linux/notifier.h>
 #include <linux/seq_file.h>
+#include <linux/smp_lock.h>
 #include <asm/byteorder.h>
 #include "usb.h"
 #include "hcd.h"
@@ -265,9 +266,13 @@ static int remount(struct super_block *sb, int *flags, char *data)
 		return -EINVAL;
 	}
 
+	lock_kernel();
+
 	if (usbfs_mount && usbfs_mount->mnt_sb)
 		update_sb(usbfs_mount->mnt_sb);
 
+	unlock_kernel();
+
 	return 0;
 }
 
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