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@xxxxxxxxx> --- fs/io_uring.c | 3 ++- include/uapi/linux/io_uring.h | 1 + 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/fs/io_uring.c b/fs/io_uring.c index d5cd338ac8bf..cc3bfa13a1f3 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -5063,7 +5063,8 @@ 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 -- 2.24.0