| Date | Sat, 10 Oct 2009 15:36:30 -0000 | From | Thomas Gleixner <> | Subject | [patch 14/28] um: Remove BKL from random |
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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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