diff options
| -rw-r--r-- | io_uring/rw.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/io_uring/rw.c b/io_uring/rw.c index 9e3e56b74e35..8321e004ab13 100644 --- a/io_uring/rw.c +++ b/io_uring/rw.c @@ -143,6 +143,7 @@ int io_prep_rw_fixed(struct io_kiocb *req, const struct io_uring_sqe *sqe) */ int io_read_mshot_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe) { + struct io_rw *rw = io_kiocb_to_cmd(req, struct io_rw); int ret; /* must be used with provided buffers */ @@ -153,6 +154,9 @@ int io_read_mshot_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe) if (unlikely(ret)) return ret; + if (rw->addr || rw->len) + return -EINVAL; + req->flags |= REQ_F_APOLL_MULTISHOT; return 0; } |