Sockets and other non-regular files may actually expect short reads to
happen, don't retry reads for them.
Cc: stable@xxxxxxxxxxxxxxx # 5.9+
Suggested-by: Jens Axboe <axboe@xxxxxxxxx>
Signed-off-by: Pavel Begunkov <asml.silence@xxxxxxxxx>
---
fs/io_uring.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/fs/io_uring.c b/fs/io_uring.c
index 5f6f1e48954e..544d711b2ef0 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -3557,6 +3557,9 @@ static int io_read(struct io_kiocb *req, bool force_nonblock,
io_size -= ret;
copy_iov:
+ if (!(req->flags & REQ_F_ISREG) && ret > 0)
+ goto done;
+
ret2 = io_setup_async_rw(req, iovec, inline_vecs, iter, true);
if (ret2) {
ret = ret2;
--
2.24.0
