linux-kernel - [PATCH 01/12] BKL: Remove BKL from usbfs

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Date:	Thu, 16 Sep 2010 19:46:14 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	linux-kernel@...r.kernel.org
Cc:	Arnd Bergmann <arnd@...db.de>, Greg Kroah-Hartman <gregkh@...e.de>,
	Jan Blunck <jblunck@...radead.org>
Subject: [PATCH 01/12] BKL: Remove BKL from usbfs

Nothing in there has a race that can be
prevented by holding the BKL.

Signed-off-by: Arnd Bergmann <arnd@...db.de>
Cc: Greg Kroah-Hartman <gregkh@...e.de>
Cc: Jan Blunck <jblunck@...radead.org>
---
 drivers/usb/core/inode.c |    6 ------
 1 files changed, 0 insertions(+), 6 deletions(-)

diff --git a/drivers/usb/core/inode.c b/drivers/usb/core/inode.c
index 73ec8c2..9e2ec9f 100644
--- a/drivers/usb/core/inode.c
+++ b/drivers/usb/core/inode.c
@@ -39,7 +39,6 @@
 #include <linux/parser.h>
 #include <linux/notifier.h>
 #include <linux/seq_file.h>
-#include <linux/smp_lock.h>
 #include <linux/usb/hcd.h>
 #include <asm/byteorder.h>
 #include "usb.h"
@@ -457,8 +456,6 @@ static int usbfs_fill_super(struct super_block *sb, void *data, int silent)
 	struct inode *inode;
 	struct dentry *root;
 
-	lock_kernel();
-
 	sb->s_blocksize = PAGE_CACHE_SIZE;
 	sb->s_blocksize_bits = PAGE_CACHE_SHIFT;
 	sb->s_magic = USBDEVICE_SUPER_MAGIC;
@@ -468,7 +465,6 @@ static int usbfs_fill_super(struct super_block *sb, void *data, int silent)
 
 	if (!inode) {
 		dbg("%s: could not get inode!",__func__);
-		unlock_kernel();
 		return -ENOMEM;
 	}
 
@@ -476,11 +472,9 @@ static int usbfs_fill_super(struct super_block *sb, void *data, int silent)
 	if (!root) {
 		dbg("%s: could not get root dentry!",__func__);
 		iput(inode);
-		unlock_kernel();
 		return -ENOMEM;
 	}
 	sb->s_root = root;
-	unlock_kernel();
 	return 0;
 }
 
-- 
1.7.1

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