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io_uring: add support for eventfd notifications

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Allow registration of an eventfd, which will trigger an event every
time a completion event happens for this io_uring instance.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Jens Axboe 2019-04-11 11:45:41 -06:00
parent 5d17b4a4b7
commit 9b402849e8
2 changed files with 50 additions and 0 deletions
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2
include/uapi/linux/io_uring.h
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@ -136,5 +136,7 @@ struct io_uring_params {
#define IORING_UNREGISTER_BUFFERS 1
#define IORING_REGISTER_FILES 2
#define IORING_UNREGISTER_FILES 3
#define IORING_REGISTER_EVENTFD 4
#define IORING_UNREGISTER_EVENTFD 5
#endif