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| author | Kukjin Kim <kgene.kim@samsung.com> | 2014-05-31 02:36:49 +0900 |
|---|---|---|
| committer | Kukjin Kim <kgene.kim@samsung.com> | 2014-05-31 02:36:49 +0900 |
| commit | fced6dee29f6fb143fe16ea90331176ff77e6120 (patch) | |
| tree | 5b6e57e7a757adc2a6518ce291a4d2914397b917 /include/linux/wait.h | |
| parent | bfed1074f213051e94648bfad0d0611a16d81366 (diff) | |
| parent | be1f7c8d7e2bc8b8c76846aa6f276e8d2ef8975a (diff) | |
| download | blackbird-op-linux-fced6dee29f6fb143fe16ea90331176ff77e6120.tar.gz blackbird-op-linux-fced6dee29f6fb143fe16ea90331176ff77e6120.zip | |
Merge branch 'v3.16-next/cleanup-samsung' into v3.16-next/platform-exynos
Diffstat (limited to 'include/linux/wait.h')
| -rw-r--r-- | include/linux/wait.h | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/include/linux/wait.h b/include/linux/wait.h index e7d9d9ed14f5..bd68819f0815 100644 --- a/include/linux/wait.h +++ b/include/linux/wait.h @@ -191,11 +191,23 @@ wait_queue_head_t *bit_waitqueue(void *, int); (!__builtin_constant_p(state) || \ state == TASK_INTERRUPTIBLE || state == TASK_KILLABLE) \ +/* + * The below macro ___wait_event() has an explicit shadow of the __ret + * variable when used from the wait_event_*() macros. + * + * This is so that both can use the ___wait_cond_timeout() construct + * to wrap the condition. + * + * The type inconsistency of the wait_event_*() __ret variable is also + * on purpose; we use long where we can return timeout values and int + * otherwise. + */ + #define ___wait_event(wq, condition, state, exclusive, ret, cmd) \ ({ \ __label__ __out; \ wait_queue_t __wait; \ - long __ret = ret; \ + long __ret = ret; /* explicit shadow */ \ \ INIT_LIST_HEAD(&__wait.task_list); \ if (exclusive) \ |
