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authorTejun Heo <tj@kernel.org>2010-06-29 12:07:10 +0400
committerTejun Heo <tj@kernel.org>2010-06-29 12:07:10 +0400
commit97e37d7b9e65a6ac939f796f91081135b7a08acc (patch)
tree1125644ee13ecf0825688502aa4a7495008cc88e /include/linux/workqueue.h
parent4690c4ab56c71919893ca25252f2dd65b58188c7 (diff)
downloadlinux-97e37d7b9e65a6ac939f796f91081135b7a08acc.tar.xz
workqueue: merge feature parameters into flags
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>
Diffstat (limited to 'include/linux/workqueue.h')
-rw-r--r--include/linux/workqueue.h25
1 files changed, 15 insertions, 10 deletions
diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h
index e724dafc9e6d..d89cfc143b1a 100644
--- a/include/linux/workqueue.h
+++ b/include/linux/workqueue.h
@@ -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);