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uml-mmapper: BKL pushdown
author
Arnd Bergmann
<arnd@arndb.de>
Tue, 20 May 2008 17:16:56 +0000
(19:16 +0200)
committer
Jonathan Corbet
<corbet@lwn.net>
Wed, 2 Jul 2008 21:06:26 +0000
(15:06 -0600)
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
arch/um/drivers/mmapper_kern.c
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diff --git
a/arch/um/drivers/mmapper_kern.c
b/arch/um/drivers/mmapper_kern.c
index
67b2f55
..
eb24032
100644
(file)
--- a/
arch/um/drivers/mmapper_kern.c
+++ b/
arch/um/drivers/mmapper_kern.c
@@
-16,6
+16,7
@@
#include <linux/miscdevice.h>
#include <linux/module.h>
#include <linux/mm.h>
+#include <linux/smp_lock.h>
#include <asm/uaccess.h>
#include "mem_user.h"
@@
-77,6
+78,7
@@
out:
static int mmapper_open(struct inode *inode, struct file *file)
{
+ cycle_kernel_lock();
return 0;
}