io_uring: check file O_NONBLOCK state for accept
If the socket is O_NONBLOCK, we should complete the accept request
with -EAGAIN when data is not ready.
Signed-off-by: Jiufei Xue <jiufei.xue@linux.alibaba.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/fs/io_uring.c b/fs/io_uring.c
index d72b2a9..5b02491 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -3909,6 +3909,9 @@
unsigned int file_flags = force_nonblock ? O_NONBLOCK : 0;
int ret;
+ if (req->file->f_flags & O_NONBLOCK)
+ req->flags |= REQ_F_NOWAIT;
+
ret = __sys_accept4_file(req->file, file_flags, accept->addr,
accept->addr_len, accept->flags,
accept->nofile);
