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Commit db26e64d authored by Arnd Bergmann's avatar Arnd Bergmann Committed by Jonathan Corbet
Browse files

pm_qos_params: BKL pushdown 



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

Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
Signed-off-by: default avatarJonathan Corbet <corbet@lwn.net>
parent b6917500

kernel/pm_qos_params.c

+6 −1
Original line number Diff line number Diff line
@@ -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;

}