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workqueue: clean up delayed_work initializers and add missing one 

Reimplement delayed_work initializers using new timer initializers
which take timer flags.  This reduces code duplications and will ease
further initializer changes.  This patch also adds a missing
initializer - INIT_DEFERRABLE_WORK_ONSTACK().

Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Tejun Heo 2012-08-21 13:18:23 -07:00
Родитель 203b42f731
Коммит f991b318cc
1 изменённых файлов: 23 добавлений и 25 удалений
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48
include/linux/workqueue.h
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@ -133,26 +133,20 @@ struct execute_work {
__WORK_INIT_LOCKDEP_MAP(#n, &(n)) \
}
#define __DELAYED_WORK_INITIALIZER(n, f) { \
#define __DELAYED_WORK_INITIALIZER(n, f, tflags) { \
.work = __WORK_INITIALIZER((n).work, (f)), \
.timer = TIMER_INITIALIZER(delayed_work_timer_fn, \
0, (unsigned long)&(n)), \
}
#define __DEFERRABLE_WORK_INITIALIZER(n, f) { \
.work = __WORK_INITIALIZER((n).work, (f)), \
.timer = TIMER_DEFERRED_INITIALIZER(delayed_work_timer_fn, \
0, (unsigned long)&(n)), \
.timer = __TIMER_INITIALIZER(delayed_work_timer_fn, \
0, (unsigned long)&(n), (tflags)), \
}
#define DECLARE_WORK(n, f) \
struct work_struct n = __WORK_INITIALIZER(n, f)
#define DECLARE_DELAYED_WORK(n, f) \
struct delayed_work n = __DELAYED_WORK_INITIALIZER(n, f)
struct delayed_work n = __DELAYED_WORK_INITIALIZER(n, f, 0)
#define DECLARE_DEFERRABLE_WORK(n, f) \
struct delayed_work n = __DEFERRABLE_WORK_INITIALIZER(n, f)
struct delayed_work n = __DELAYED_WORK_INITIALIZER(n, f, TIMER_DEFERRABLE)
/*
* initialize a work item's function pointer
@ -216,29 +210,33 @@ static inline unsigned int work_static(struct work_struct *work) { return 0; }
__INIT_WORK((_work), (_func), 1); \
} while (0)
#define INIT_DELAYED_WORK(_work, _func) \
#define __INIT_DELAYED_WORK(_work, _func, _tflags) \
do { \
INIT_WORK(&(_work)->work, (_func)); \
init_timer(&(_work)->timer); \
(_work)->timer.function = delayed_work_timer_fn; \
(_work)->timer.data = (unsigned long)(_work); \
__setup_timer(&(_work)->timer, delayed_work_timer_fn, \
(unsigned long)(_work), (_tflags)); \
} while (0)
#define INIT_DELAYED_WORK_ONSTACK(_work, _func) \
#define __INIT_DELAYED_WORK_ONSTACK(_work, _func, _tflags) \
do { \
INIT_WORK_ONSTACK(&(_work)->work, (_func)); \
init_timer_on_stack(&(_work)->timer); \
(_work)->timer.function = delayed_work_timer_fn; \
(_work)->timer.data = (unsigned long)(_work); \
__setup_timer_on_stack(&(_work)->timer, \
delayed_work_timer_fn, \
(unsigned long)(_work), \
(_tflags)); \
} while (0)
#define INIT_DELAYED_WORK(_work, _func) \
__INIT_DELAYED_WORK(_work, _func, 0)
#define INIT_DELAYED_WORK_ONSTACK(_work, _func) \
__INIT_DELAYED_WORK_ONSTACK(_work, _func, 0)
#define INIT_DEFERRABLE_WORK(_work, _func) \
do { \
INIT_WORK(&(_work)->work, (_func)); \
init_timer_deferrable(&(_work)->timer); \
(_work)->timer.function = delayed_work_timer_fn; \
(_work)->timer.data = (unsigned long)(_work); \
} while (0)
__INIT_DELAYED_WORK(_work, _func, TIMER_DEFERRABLE)
#define INIT_DEFERRABLE_WORK_ONSTACK(_work, _func) \
__INIT_DELAYED_WORK_ONSTACK(_work, _func, TIMER_DEFERRABLE)
/**
* work_pending - Find out whether a work item is currently pending