Merge tag 'io_uring-6.11-20240809' of git://git.kernel.dk/linux

Pull io_uring fixes from Jens Axboe:
 "Nothing major in here, just two fixes for ensuring that bundle
  recv/send requests always get marked for cleanups, and a single fix to
  ensure that sends with provided buffers only pick a single buffer
  unless the bundle option has been enabled"

* tag 'io_uring-6.11-20240809' of git://git.kernel.dk/linux:
  io_uring/net: don't pick multiple buffers for non-bundle send
  io_uring/net: ensure expanded bundle send gets marked for cleanup
  io_uring/net: ensure expanded bundle recv gets marked for cleanup

Author: torvalds

io_uring/net.c

@@ -601,17 +601,18 @@ int io_send(struct io_kiocb *req, unsigned int issue_flags)
 			.iovs = &kmsg->fast_iov,
 			.max_len = INT_MAX,
 			.nr_iovs = 1,
-			.mode = KBUF_MODE_EXPAND,
 		};
 
 		if (kmsg->free_iov) {
 			arg.nr_iovs = kmsg->free_iov_nr;
 			arg.iovs = kmsg->free_iov;
-			arg.mode |= KBUF_MODE_FREE;
+			arg.mode = KBUF_MODE_FREE;
 		}
 
 		if (!(sr->flags & IORING_RECVSEND_BUNDLE))
 			arg.nr_iovs = 1;
+		else
+			arg.mode |= KBUF_MODE_EXPAND;
 
 		ret = io_buffers_select(req, &arg, issue_flags);
 		if (unlikely(ret < 0))
@@ -623,6 +624,7 @@ int io_send(struct io_kiocb *req, unsigned int issue_flags)
 		if (arg.iovs != &kmsg->fast_iov && arg.iovs != kmsg->free_iov) {
 			kmsg->free_iov_nr = ret;
 			kmsg->free_iov = arg.iovs;
+			req->flags |= REQ_F_NEED_CLEANUP;
 		}
 	}
 
@@ -1094,6 +1096,7 @@ static int io_recv_buf_select(struct io_kiocb *req, struct io_async_msghdr *kmsg
 		if (arg.iovs != &kmsg->fast_iov && arg.iovs != kmsg->free_iov) {
 			kmsg->free_iov_nr = ret;
 			kmsg->free_iov = arg.iovs;
+			req->flags |= REQ_F_NEED_CLEANUP;
 		}
 	} else {
 		void __user *buf;