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padata: Added sysfs primitives to padata subsystem

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Added sysfs primitives to padata subsystem. Now API user may
embedded kobject each padata instance contains into any sysfs
hierarchy. For now padata sysfs interface provides only
two objects:
    serial_cpumask   [RW] - cpumask for serial workers
    parallel_cpumask [RW] - cpumask for parallel workers

Signed-off-by: Dan Kruchinin <dkruchinin@acm.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Dan Kruchinin
2010-07-14 14:33:08 +04:00
committed by Herbert Xu
parent e15bacbebb
commit 5e017dc3f8
2 changed files with 150 additions and 10 deletions
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5
include/linux/padata.h
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@@ -26,6 +26,7 @@
#include <linux/list.h>
#include <linux/timer.h>
#include <linux/notifier.h>
#include <linux/kobject.h>
#define PADATA_CPU_SERIAL 0x01
#define PADATA_CPU_PARALLEL 0x02
@@ -142,7 +143,8 @@ struct parallel_data {
* cbcpu for parallel and serial works respectivly.
* @cpumask_change_notifier: Notifiers chain for user-defined notify
* callbacks that will be called when either @pcpu or @cbcpu
* or both cpumasks change.
* or both cpumasks change.
* @kobj: padata instance kernel object.
* @lock: padata instance lock.
* @flags: padata flags.
*/
@@ -155,6 +157,7 @@ struct padata_instance {
cpumask_var_t cbcpu;
} cpumask;
struct blocking_notifier_head cpumask_change_notifier;
struct kobject kobj;
struct mutex lock;
u8 flags;
#define PADATA_INIT 1