From eee031649707db3c9920d9498f8d03819b74fc23 Mon Sep 17 00:00:00 2001 From: Jeff Mahoney Date: Wed, 11 Sep 2013 13:00:30 -0400 Subject: kobject: introduce kobj_completion A common way to handle kobject lifetimes in embedded in objects with different lifetime rules is to pair the kobject with a struct completion. This introduces a kobj_completion structure that can be used in place of the pairing, along with several convenience functions for initialization, release, and put-and-wait. Signed-off-by: Jeff Mahoney Signed-off-by: Greg Kroah-Hartman --- include/linux/kobj_completion.h | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) create mode 100644 include/linux/kobj_completion.h (limited to 'include') diff --git a/include/linux/kobj_completion.h b/include/linux/kobj_completion.h new file mode 100644 index 000000000000..a428f6436063 --- /dev/null +++ b/include/linux/kobj_completion.h @@ -0,0 +1,18 @@ +#ifndef _KOBJ_COMPLETION_H_ +#define _KOBJ_COMPLETION_H_ + +#include +#include + +struct kobj_completion { + struct kobject kc_kobj; + struct completion kc_unregister; +}; + +#define kobj_to_kobj_completion(kobj) \ + container_of(kobj, struct kobj_completion, kc_kobj) + +void kobj_completion_init(struct kobj_completion *kc, struct kobj_type *ktype); +void kobj_completion_release(struct kobject *kobj); +void kobj_completion_del_and_wait(struct kobj_completion *kc); +#endif /* _KOBJ_COMPLETION_H_ */ -- cgit v1.2.3