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authorArnd Bergmann <arnd@arndb.de>2010-04-27 16:24:22 +0200
committerFrederic Weisbecker <fweisbec@gmail.com>2010-05-17 05:27:03 +0200
commit1114b68468fa2359e15c75f415793b9dd0e5d837 (patch)
treebd1f7b774024c704c9f537cd76e519af237477f4
parent7cc4bcc6f152d365eb27acba5dcb7b38b36b3e50 (diff)
downloadop-kernel-dev-1114b68468fa2359e15c75f415793b9dd0e5d837.zip
op-kernel-dev-1114b68468fa2359e15c75f415793b9dd0e5d837.tar.gz
sn_hwperf: Kill BKL usage
This driver always gave up the BKL in its ioctl function, so just convert it to unlocked_ioctl and remove the BKL here. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
-rw-r--r--arch/ia64/sn/kernel/sn2/sn_hwperf.c9
1 files changed, 2 insertions, 7 deletions
diff --git a/arch/ia64/sn/kernel/sn2/sn_hwperf.c b/arch/ia64/sn/kernel/sn2/sn_hwperf.c
index 55ac3c4..d68fe0f 100644
--- a/arch/ia64/sn/kernel/sn2/sn_hwperf.c
+++ b/arch/ia64/sn/kernel/sn2/sn_hwperf.c
@@ -30,7 +30,6 @@
#include <linux/miscdevice.h>
#include <linux/utsname.h>
#include <linux/cpumask.h>
-#include <linux/smp_lock.h>
#include <linux/nodemask.h>
#include <linux/smp.h>
#include <linux/mutex.h>
@@ -682,8 +681,7 @@ static int sn_hwperf_map_err(int hwperf_err)
/*
* ioctl for "sn_hwperf" misc device
*/
-static int
-sn_hwperf_ioctl(struct inode *in, struct file *fp, u32 op, unsigned long arg)
+static long sn_hwperf_ioctl(struct file *fp, u32 op, unsigned long arg)
{
struct sn_hwperf_ioctl_args a;
struct cpuinfo_ia64 *cdata;
@@ -699,8 +697,6 @@ sn_hwperf_ioctl(struct inode *in, struct file *fp, u32 op, unsigned long arg)
int i;
int j;
- unlock_kernel();
-
/* only user requests are allowed here */
if ((op & SN_HWPERF_OP_MASK) < 10) {
r = -EINVAL;
@@ -859,12 +855,11 @@ sn_hwperf_ioctl(struct inode *in, struct file *fp, u32 op, unsigned long arg)
error:
vfree(p);
- lock_kernel();
return r;
}
static const struct file_operations sn_hwperf_fops = {
- .ioctl = sn_hwperf_ioctl,
+ .unlocked_ioctl = sn_hwperf_ioctl,
};
static struct miscdevice sn_hwperf_dev = {
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