Commit a4790c94 authored by Linus Torvalds's avatar Linus Torvalds

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

* '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
parents 08da5a32 bcbea798
...@@ -81,16 +81,41 @@ struct kthread_work { ...@@ -81,16 +81,41 @@ struct kthread_work {
#define DEFINE_KTHREAD_WORK(work, fn) \ #define DEFINE_KTHREAD_WORK(work, fn) \
struct kthread_work work = KTHREAD_WORK_INIT(work, fn) struct kthread_work work = KTHREAD_WORK_INIT(work, fn)
static inline void init_kthread_worker(struct kthread_worker *worker) /*
{ * kthread_worker.lock and kthread_work.done need their own lockdep class
*worker = (struct kthread_worker)KTHREAD_WORKER_INIT(*worker); * keys if they are defined on stack with lockdep enabled. Use the
} * following macros when defining them on stack.
*/
static inline void init_kthread_work(struct kthread_work *work, #ifdef CONFIG_LOCKDEP
kthread_work_func_t fn) # define KTHREAD_WORKER_INIT_ONSTACK(worker) \
{ ({ init_kthread_worker(&worker); worker; })
*work = (struct kthread_work)KTHREAD_WORK_INIT(*work, fn); # 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
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); int kthread_worker_fn(void *worker_ptr);
......
...@@ -265,6 +265,17 @@ int kthreadd(void *unused) ...@@ -265,6 +265,17 @@ int kthreadd(void *unused)
return 0; return 0;
} }
void __init_kthread_worker(struct kthread_worker *worker,
const char *name,
struct lock_class_key *key)
{
spin_lock_init(&worker->lock);
lockdep_set_class_and_name(&worker->lock, key, name);
INIT_LIST_HEAD(&worker->work_list);
worker->task = NULL;
}
EXPORT_SYMBOL_GPL(__init_kthread_worker);
/** /**
* kthread_worker_fn - kthread function to process kthread_worker * kthread_worker_fn - kthread function to process kthread_worker
* @worker_ptr: pointer to initialized kthread_worker * @worker_ptr: pointer to initialized kthread_worker
......
...@@ -1268,7 +1268,7 @@ int __init pcpu_setup_first_chunk(const struct pcpu_alloc_info *ai, ...@@ -1268,7 +1268,7 @@ int __init pcpu_setup_first_chunk(const struct pcpu_alloc_info *ai,
/* we're done parsing the input, undefine BUG macro and dump config */ /* we're done parsing the input, undefine BUG macro and dump config */
#undef PCPU_SETUP_BUG_ON #undef PCPU_SETUP_BUG_ON
pcpu_dump_alloc_info(KERN_INFO, ai); pcpu_dump_alloc_info(KERN_DEBUG, ai);
pcpu_nr_groups = ai->nr_groups; pcpu_nr_groups = ai->nr_groups;
pcpu_group_offsets = group_offsets; pcpu_group_offsets = group_offsets;
......
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