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pm_qos_params: BKL pushdown 

[jmc: added <linux/smp_lock.h>]

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This commit is contained in:
Arnd Bergmann 2008-05-20 19:16:33 +02:00 committed by Jonathan Corbet
parent b691750098
commit db26e64dc3
1 changed files with 6 additions and 1 deletions
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7
kernel/pm_qos_params.c
View File

@ -29,6 +29,7 @@
#include <linux/pm_qos_params.h>
#include <linux/sched.h>
#include <linux/smp_lock.h>
#include <linux/spinlock.h>
#include <linux/slab.h>
#include <linux/time.h>
@ -358,15 +359,19 @@ static int pm_qos_power_open(struct inode *inode, struct file *filp)
int ret;
long pm_qos_class;
lock_kernel();
pm_qos_class = find_pm_qos_object_by_minor(iminor(inode));
if (pm_qos_class >= 0) {
filp->private_data = (void *)pm_qos_class;
sprintf(name, "process_%d", current->pid);
ret = pm_qos_add_requirement(pm_qos_class, name,
PM_QOS_DEFAULT_VALUE);
if (ret >= 0)
if (ret >= 0) {
unlock_kernel();
return 0;
}
}
unlock_kernel();
return -EPERM;
}