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| author | James Bottomley | 2010-07-05 22:53:06 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki | 2010-07-19 02:00:34 +0200 |
| commit | 82f682514a5df89ffb3890627eebf0897b7a84ec (patch) | |
| tree | 27a3dba7a179102ac5bfdd5935679bd2abd3f70f /include/linux/pm_qos_params.h | |
| parent | pm_qos: Reimplement using plists (diff) | |
| download | kernel-qcow2-linux-82f682514a5df89ffb3890627eebf0897b7a84ec.tar.gz kernel-qcow2-linux-82f682514a5df89ffb3890627eebf0897b7a84ec.tar.xz kernel-qcow2-linux-82f682514a5df89ffb3890627eebf0897b7a84ec.zip | |
pm_qos: Get rid of the allocation in pm_qos_add_request()
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>
Diffstat (limited to 'include/linux/pm_qos_params.h')
| -rw-r--r-- | include/linux/pm_qos_params.h | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/include/linux/pm_qos_params.h b/include/linux/pm_qos_params.h index 8ba440e5eb7f..77cbddb3784c 100644 --- a/include/linux/pm_qos_params.h +++ b/include/linux/pm_qos_params.h @@ -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 |