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workqueue: merge feature parameters into flags

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Currently, __create_workqueue_key() takes @singlethread and
@freezeable paramters and store them separately in workqueue_struct.
Merge them into a single flags parameter and field and use
WQ_FREEZEABLE and WQ_SINGLE_THREAD.

Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Tejun Heo 2010-06-29 10:07:10 +02:00
parent 4690c4ab56
commit 97e37d7b9e
2 changed files with 22 additions and 20 deletions
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25
include/linux/workqueue.h
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@ -184,13 +184,17 @@ static inline unsigned int work_static(struct work_struct *work) { return 0; }
#define work_clear_pending(work) \
clear_bit(WORK_STRUCT_PENDING, work_data_bits(work))
enum {
WQ_FREEZEABLE = 1 << 0, /* freeze during suspend */
WQ_SINGLE_THREAD = 1 << 1, /* no per-cpu worker */
};
extern struct workqueue_struct *
__create_workqueue_key(const char *name, int singlethread, int freezeable,
__create_workqueue_key(const char *name, unsigned int flags,
struct lock_class_key *key, const char *lock_name);
#ifdef CONFIG_LOCKDEP
#define __create_workqueue(name, singlethread, freezeable) \
#define __create_workqueue(name, flags) \
({ \
static struct lock_class_key __key; \
const char *__lock_name; \
@ -200,19 +204,20 @@ __create_workqueue_key(const char *name, int singlethread, int freezeable,
else \
__lock_name = #name; \
\
__create_workqueue_key((name), (singlethread), \
(freezeable), &__key, \
__create_workqueue_key((name), (flags), &__key, \
__lock_name); \
})
#else
#define __create_workqueue(name, singlethread, freezeable) \
__create_workqueue_key((name), (singlethread), (freezeable), \
NULL, NULL)
#define __create_workqueue(name, flags) \
__create_workqueue_key((name), (flags), NULL, NULL)
#endif
#define create_workqueue(name) __create_workqueue((name), 0, 0)
#define create_freezeable_workqueue(name) __create_workqueue((name), 1, 1)
#define create_singlethread_workqueue(name) __create_workqueue((name), 1, 0)
#define create_workqueue(name) \
__create_workqueue((name), 0)
#define create_freezeable_workqueue(name) \
__create_workqueue((name), WQ_FREEZEABLE | WQ_SINGLE_THREAD)
#define create_singlethread_workqueue(name) \
__create_workqueue((name), WQ_SINGLE_THREAD)
extern void destroy_workqueue(struct workqueue_struct *wq);