DL-Mirrors/kernel-tenderloin-3.0
0
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

pm_qos: Get rid of the allocation in pm_qos_add_request()

Browse Source 
All current users of pm_qos_add_request() have the ability to supply
the memory required by the pm_qos routines, so make them do this and
eliminate the kmalloc() with pm_qos_add_request().  This has the
double benefit of making the call never fail and allowing it to be
called from atomic context.

Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Signed-off-by: mark gross <markgross@thegnar.org>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
This commit is contained in:
James Bottomley
2010-07-05 22:53:06 +02:00
committed by Rafael J. Wysocki
parent 5f279845f9
commit 82f682514a
8 changed files with 73 additions and 60 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
include/linux/pm_qos_params.h
View File

@@ -1,8 +1,10 @@
#ifndef _LINUX_PM_QOS_PARAMS_H
#define _LINUX_PM_QOS_PARAMS_H
/* interface for the pm_qos_power infrastructure of the linux kernel.
*
* Mark Gross <mgross@linux.intel.com>
*/
#include <linux/list.h>
#include <linux/plist.h>
#include <linux/notifier.h>
#include <linux/miscdevice.h>
@@ -14,9 +16,12 @@
#define PM_QOS_NUM_CLASSES 4
#define PM_QOS_DEFAULT_VALUE -1
struct pm_qos_request_list;
struct pm_qos_request_list {
struct plist_node list;
int pm_qos_class;
};
struct pm_qos_request_list *pm_qos_add_request(int pm_qos_class, s32 value);
void pm_qos_add_request(struct pm_qos_request_list *l, int pm_qos_class, s32 value);
void pm_qos_update_request(struct pm_qos_request_list *pm_qos_req,
s32 new_value);
void pm_qos_remove_request(struct pm_qos_request_list *pm_qos_req);
@@ -24,4 +29,6 @@ void pm_qos_remove_request(struct pm_qos_request_list *pm_qos_req);
int pm_qos_request(int pm_qos_class);
int pm_qos_add_notifier(int pm_qos_class, struct notifier_block *notifier);
int pm_qos_remove_notifier(int pm_qos_class, struct notifier_block *notifier);
int pm_qos_request_active(struct pm_qos_request_list *req);
#endif