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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu

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* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu:
  percpu: print out alloc information with KERN_DEBUG instead of KERN_INFO
  kthread_work: make lockdep happy
This commit is contained in:
Linus Torvalds
2010-12-24 12:59:09 -08:00
parent 08da5a32b7 bcbea798f8
commit a4790c9457
3 changed files with 46 additions and 10 deletions
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include/linux/kthread.h
+34 -9
View File
@@ -81,16 +81,41 @@ struct kthread_work {
#define DEFINE_KTHREAD_WORK(work, fn) \
struct kthread_work work = KTHREAD_WORK_INIT(work, fn)
static inline void init_kthread_worker(struct kthread_worker *worker)
{
*worker = (struct kthread_worker)KTHREAD_WORKER_INIT(*worker);
}
/*
* kthread_worker.lock and kthread_work.done need their own lockdep class
* keys if they are defined on stack with lockdep enabled. Use the
* following macros when defining them on stack.
*/
#ifdef CONFIG_LOCKDEP
# define KTHREAD_WORKER_INIT_ONSTACK(worker) \
({ init_kthread_worker(&worker); worker; })
# define DEFINE_KTHREAD_WORKER_ONSTACK(worker) \
struct kthread_worker worker = KTHREAD_WORKER_INIT_ONSTACK(worker)
# define KTHREAD_WORK_INIT_ONSTACK(work, fn) \
({ init_kthread_work((&work), fn); work; })
# define DEFINE_KTHREAD_WORK_ONSTACK(work, fn) \
struct kthread_work work = KTHREAD_WORK_INIT_ONSTACK(work, fn)
#else
# define DEFINE_KTHREAD_WORKER_ONSTACK(worker) DEFINE_KTHREAD_WORKER(worker)
# define DEFINE_KTHREAD_WORK_ONSTACK(work, fn) DEFINE_KTHREAD_WORK(work, fn)
#endif
static inline void init_kthread_work(struct kthread_work *work,
kthread_work_func_t fn)
{
*work = (struct kthread_work)KTHREAD_WORK_INIT(*work, fn);
}
extern void __init_kthread_worker(struct kthread_worker *worker,
const char *name, struct lock_class_key *key);
#define init_kthread_worker(worker) \
do { \
static struct lock_class_key __key; \
__init_kthread_worker((worker), "("#worker")->lock", &__key); \
} while (0)
#define init_kthread_work(work, fn) \
do { \
memset((work), 0, sizeof(struct kthread_work)); \
INIT_LIST_HEAD(&(work)->node); \
(work)->func = (fn); \
init_waitqueue_head(&(work)->done); \
} while (0)
int kthread_worker_fn(void *worker_ptr);