diff options
| author | Jens Axboe <axboe@kernel.dk> | 2019-12-02 18:51:26 -0700 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2019-12-03 07:04:32 -0700 |
| commit | da8c96906990f1108cb626ee7865e69267a3263b (patch) | |
| tree | b8c0abab6954fd7209e6eeed658cb312e6193902 | |
| parent | f499a021ea8c9f70321fce3d674d8eca5bbeee2c (diff) | |
io_uring: mark us with IORING_FEAT_SUBMIT_STABLE
If this flag is set, applications can be certain that any data for
async offload has been consumed when the kernel has consumed the
SQE.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
| -rw-r--r-- | fs/io_uring.c | 3 | ||||
| -rw-r--r-- | include/uapi/linux/io_uring.h | 1 |
2 files changed, 3 insertions, 1 deletions
diff --git a/fs/io_uring.c b/fs/io_uring.c index 5fcd89c507ec..c47a08afcee5 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -5077,7 +5077,8 @@ static int io_uring_create(unsigned entries, struct io_uring_params *p) if (ret < 0) goto err; - p->features = IORING_FEAT_SINGLE_MMAP | IORING_FEAT_NODROP; + p->features = IORING_FEAT_SINGLE_MMAP | IORING_FEAT_NODROP | + IORING_FEAT_SUBMIT_STABLE; trace_io_uring_create(ret, ctx, p->sq_entries, p->cq_entries, p->flags); return ret; err: diff --git a/include/uapi/linux/io_uring.h b/include/uapi/linux/io_uring.h index 4637ed1d9949..eabccb46edd1 100644 --- a/include/uapi/linux/io_uring.h +++ b/include/uapi/linux/io_uring.h @@ -157,6 +157,7 @@ struct io_uring_params { */ #define IORING_FEAT_SINGLE_MMAP (1U << 0) #define IORING_FEAT_NODROP (1U << 1) +#define IORING_FEAT_SUBMIT_STABLE (1U << 2) /* * io_uring_register(2) opcodes and arguments |