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| author | Jens Axboe <axboe@kernel.dk> | 2022-03-10 22:59:35 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2022-03-10 23:05:25 +0300 |
| commit | bcbb7bf6ccde7cb969a5642879832bc84ebf06a3 (patch) | |
| tree | 18a39891555fe3acd6b4197fd097f10745777b4b /include/uapi/linux/io_uring.h | |
| parent | b1c62645758eb438179e3a0769168cb7b0a94d6b (diff) | |
| download | linux-bcbb7bf6ccde7cb969a5642879832bc84ebf06a3.tar.xz | |
io_uring: allow submissions to continue on error
By default, io_uring will stop submitting a batch of requests if we run
into an error submitting a request. This isn't strictly necessary, as
the error result is passed out-of-band via a CQE anyway. And it can be
a bit confusing for some applications.
Provide a way to setup a ring that will continue submitting on error,
when the error CQE has been posted.
There's still one case that will break out of submission. If we fail
allocating a request, then we'll still return -ENOMEM. We could in theory
post a CQE for that condition too even if we never got a request. Leave
that for a potential followup.
Reported-by: Dylan Yudaken <dylany@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/uapi/linux/io_uring.h')
| -rw-r--r-- | include/uapi/linux/io_uring.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/uapi/linux/io_uring.h b/include/uapi/linux/io_uring.h index 8bd4bfdd9a89..d2be4eb22008 100644 --- a/include/uapi/linux/io_uring.h +++ b/include/uapi/linux/io_uring.h @@ -101,6 +101,7 @@ enum { #define IORING_SETUP_CLAMP (1U << 4) /* clamp SQ/CQ ring sizes */ #define IORING_SETUP_ATTACH_WQ (1U << 5) /* attach to existing wq */ #define IORING_SETUP_R_DISABLED (1U << 6) /* start with ring disabled */ +#define IORING_SETUP_SUBMIT_ALL (1U << 7) /* continue submit on error */ enum { IORING_OP_NOP, |