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Subject[patch 14/28] um: Remove BKL from random
cycle_kernel_lock() was added during the big BKL pushdown. It should
ensure the serializiation against driver init code. In this case there
is nothing to serialize. Remove it.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jeff Dike <jdike@addtoit.com>
---
arch/um/drivers/random.c | 3 ---
1 file changed, 3 deletions(-)

Index: linux-2.6-tip/arch/um/drivers/random.c
===================================================================
--- linux-2.6-tip.orig/arch/um/drivers/random.c
+++ linux-2.6-tip/arch/um/drivers/random.c
@@ -7,7 +7,6 @@
* of the GNU General Public License, incorporated herein by reference.
*/
#include <linux/sched.h>
-#include <linux/smp_lock.h>
#include <linux/module.h>
#include <linux/fs.h>
#include <linux/interrupt.h>
@@ -34,8 +33,6 @@ static DECLARE_WAIT_QUEUE_HEAD(host_read

static int rng_dev_open (struct inode *inode, struct file *filp)
{
- cycle_kernel_lock();
-
/* enforce read-only access to this chrdev */
if ((filp->f_mode & FMODE_READ) == 0)
return -EINVAL;



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