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io_uring/nop: add support for testing registered files and buffers

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Useful for testing performance/efficiency impact of registered files
and buffers, vs (particularly) non-registered files.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Jens Axboe
2024-10-27 08:59:10 -06:00
parent aa00f67adc
commit a85f31052b
2 changed files with 47 additions and 5 deletions
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include/uapi/linux/io_uring.h
+3
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@@ -416,6 +416,9 @@ enum io_uring_msg_ring_flags {
* IORING_NOP_INJECT_RESULT Inject result from sqe->result
*/
#define IORING_NOP_INJECT_RESULT (1U << 0)
#define IORING_NOP_FILE (1U << 1)
#define IORING_NOP_FIXED_FILE (1U << 2)
#define IORING_NOP_FIXED_BUFFER (1U << 3)
/*
* IO completion data structure (Completion Queue Entry)