Messages in this thread Patch in this message | | | From | Kent Overstreet <> | Subject | [PATCH 11/12] closures: closure_wait_event() | Date | Mon, 10 Jun 2019 15:14:19 -0400 |
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Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com> --- include/linux/closure.h | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+)
diff --git a/include/linux/closure.h b/include/linux/closure.h index 308e38028c..abacb91c35 100644 --- a/include/linux/closure.h +++ b/include/linux/closure.h @@ -379,4 +379,26 @@ static inline void closure_call(struct closure *cl, closure_fn fn, continue_at_nobarrier(cl, fn, wq); } +#define __closure_wait_event(waitlist, _cond) \ +do { \ + struct closure cl; \ + \ + closure_init_stack(&cl); \ + \ + while (1) { \ + closure_wait(waitlist, &cl); \ + if (_cond) \ + break; \ + closure_sync(&cl); \ + } \ + closure_wake_up(waitlist); \ + closure_sync(&cl); \ +} while (0) + +#define closure_wait_event(waitlist, _cond) \ +do { \ + if (!(_cond)) \ + __closure_wait_event(waitlist, _cond); \ +} while (0) + #endif /* _LINUX_CLOSURE_H */ -- 2.20.1
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