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-rw-r--r--include/linux/completion.h28
1 files changed, 15 insertions, 13 deletions
diff --git a/include/linux/completion.h b/include/linux/completion.h
index 22c33e35bcb2..5d5aaae3af43 100644
--- a/include/linux/completion.h
+++ b/include/linux/completion.h
@@ -19,8 +19,8 @@
19 * 19 *
20 * See also: complete(), wait_for_completion() (and friends _timeout, 20 * See also: complete(), wait_for_completion() (and friends _timeout,
21 * _interruptible, _interruptible_timeout, and _killable), init_completion(), 21 * _interruptible, _interruptible_timeout, and _killable), init_completion(),
22 * and macros DECLARE_COMPLETION(), DECLARE_COMPLETION_ONSTACK(), and 22 * reinit_completion(), and macros DECLARE_COMPLETION(),
23 * INIT_COMPLETION(). 23 * DECLARE_COMPLETION_ONSTACK().
24 */ 24 */
25struct completion { 25struct completion {
26 unsigned int done; 26 unsigned int done;
@@ -65,7 +65,7 @@ struct completion {
65 65
66/** 66/**
67 * init_completion - Initialize a dynamically allocated completion 67 * init_completion - Initialize a dynamically allocated completion
68 * @x: completion structure that is to be initialized 68 * @x: pointer to completion structure that is to be initialized
69 * 69 *
70 * This inline function will initialize a dynamically created completion 70 * This inline function will initialize a dynamically created completion
71 * structure. 71 * structure.
@@ -76,6 +76,18 @@ static inline void init_completion(struct completion *x)
76 init_waitqueue_head(&x->wait); 76 init_waitqueue_head(&x->wait);
77} 77}
78 78
79/**
80 * reinit_completion - reinitialize a completion structure
81 * @x: pointer to completion structure that is to be reinitialized
82 *
83 * This inline function should be used to reinitialize a completion structure so it can
84 * be reused. This is especially important after complete_all() is used.
85 */
86static inline void reinit_completion(struct completion *x)
87{
88 x->done = 0;
89}
90
79extern void wait_for_completion(struct completion *); 91extern void wait_for_completion(struct completion *);
80extern void wait_for_completion_io(struct completion *); 92extern void wait_for_completion_io(struct completion *);
81extern int wait_for_completion_interruptible(struct completion *x); 93extern int wait_for_completion_interruptible(struct completion *x);
@@ -94,14 +106,4 @@ extern bool completion_done(struct completion *x);
94extern void complete(struct completion *); 106extern void complete(struct completion *);
95extern void complete_all(struct completion *); 107extern void complete_all(struct completion *);
96 108
97/**
98 * INIT_COMPLETION - reinitialize a completion structure
99 * @x: completion structure to be reinitialized
100 *
101 * This macro should be used to reinitialize a completion structure so it can
102 * be reused. This is especially important after complete_all() is used.
103 */
104#define INIT_COMPLETION(x) ((x).done = 0)
105
106
107#endif 109#endif