io_uring: add support for absolute timeouts

This is a pretty trivial addition on top of the relative timeouts we have now, but it's handy for ensuring tighter timing for those that are building scheduling primitives on top of io_uring.

Jens Axboe committed 7 years ago

Commit a41525a1 parent ba5290c2 files · +17 −5Browse files

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include/uapi/linux/io_uring.h+5−0

@@ -70,6 +70,11 @@ struct io_uring_sqe { · 69 unmodified lines
70	70	*/
71	71	#define IORING_FSYNC_DATASYNC (1U << 0)
72	72
	73	+/*
	74	+ * sqe->timeout_flags
	75	+ */
	76	+#define IORING_TIMEOUT_ABS (1U << 0)
	77	+
73	78	/*
74	79	* IO completion data structure (Completion Queue Entry)
75	80	*/