diff options
Diffstat (limited to 'io_uring/rw.c')
| -rw-r--r-- | io_uring/rw.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/io_uring/rw.c b/io_uring/rw.c index 3398e1d944c2..1c76de483ef6 100644 --- a/io_uring/rw.c +++ b/io_uring/rw.c @@ -131,6 +131,10 @@ int io_read_mshot_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe) { int ret; + /* must be used with provided buffers */ + if (!(req->flags & REQ_F_BUFFER_SELECT)) + return -EINVAL; + ret = io_prep_rw(req, sqe); if (unlikely(ret)) return ret; @@ -542,6 +546,9 @@ static int io_setup_async_rw(struct io_kiocb *req, const struct iovec *iovec, { if (!force && !io_cold_defs[req->opcode].prep_async) return 0; + /* opcode type doesn't need async data */ + if (!io_cold_defs[req->opcode].async_size) + return 0; if (!req_has_async_data(req)) { struct io_async_rw *iorw; |