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io_uring: add IORING_ASYNC_CANCEL_FD_FIXED cancel flag

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In preparation for not having a request to pass in that carries this
state, add a separate cancelation flag that allows the caller to ask
for a fixed file for cancelation.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Jens Axboe 2022-06-18 09:47:04 -06:00
parent 88f52eaad2
commit 7d8ca72501
2 changed files with 8 additions and 3 deletions
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2
include/uapi/linux/io_uring.h
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@ -247,10 +247,12 @@ enum io_uring_op {
* IORING_ASYNC_CANCEL_FD Key off 'fd' for cancelation rather than the
* request 'user_data'
* IORING_ASYNC_CANCEL_ANY Match any request
* IORING_ASYNC_CANCEL_FD_FIXED 'fd' passed in is a fixed descriptor
*/
#define IORING_ASYNC_CANCEL_ALL (1U << 0)
#define IORING_ASYNC_CANCEL_FD (1U << 1)
#define IORING_ASYNC_CANCEL_ANY (1U << 2)
#define IORING_ASYNC_CANCEL_FD_FIXED (1U << 3)
/*
* send/sendmsg and recv/recvmsg flags (sqe->ioprio)