diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2013-01-11 10:23:51 (GMT) |
|---|---|---|
| committer | Scott Wood <scottwood@freescale.com> | 2015-02-13 22:21:13 (GMT) |
| commit | 26073428b040223201cc8f52f2a3232149ea8a4f (patch) | |
| tree | c644c92574014394a780b4ad02faceb173796ccf /include | |
| parent | ea9f110919a2698213bf5b459bf795f088816b9c (diff) | |
| download | linux-fsl-qoriq-26073428b040223201cc8f52f2a3232149ea8a4f.tar.xz | |
completion: Use simple wait queues
Completions have no long lasting callbacks and therefor do not need
the complex waitqueue variant. Use simple waitqueues which reduces the
contention on the waitqueue lock.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/completion.h | 8 | ||||
| -rw-r--r-- | include/linux/uprobes.h | 1 |
2 files changed, 5 insertions, 4 deletions
diff --git a/include/linux/completion.h b/include/linux/completion.h index 3cd574d..eb2d4ac 100644 --- a/include/linux/completion.h +++ b/include/linux/completion.h @@ -8,7 +8,7 @@ * See kernel/sched/core.c for details. */ -#include <linux/wait.h> +#include <linux/wait-simple.h> /* * struct completion - structure used to maintain state for a "completion" @@ -24,11 +24,11 @@ */ struct completion { unsigned int done; - wait_queue_head_t wait; + struct swait_head wait; }; #define COMPLETION_INITIALIZER(work) \ - { 0, __WAIT_QUEUE_HEAD_INITIALIZER((work).wait) } + { 0, SWAIT_HEAD_INITIALIZER((work).wait) } #define COMPLETION_INITIALIZER_ONSTACK(work) \ ({ init_completion(&work); work; }) @@ -73,7 +73,7 @@ struct completion { static inline void init_completion(struct completion *x) { x->done = 0; - init_waitqueue_head(&x->wait); + init_swait_head(&x->wait); } extern void wait_for_completion(struct completion *); diff --git a/include/linux/uprobes.h b/include/linux/uprobes.h index 06f28be..d115f62 100644 --- a/include/linux/uprobes.h +++ b/include/linux/uprobes.h @@ -26,6 +26,7 @@ #include <linux/errno.h> #include <linux/rbtree.h> +#include <linux/wait.h> struct vm_area_struct; struct mm_struct; |