From 761191258839b7d922b83064c4251b8bd4e2e7c2 Mon Sep 17 00:00:00 2001 From: Stefano Stabellini Date: Fri, 2 Feb 2018 17:34:09 -0800 Subject: pvcalls-back: do not return error on inet_accept EAGAIN When the client sends a regular blocking accept request, the backend is expected to return only when the accept is completed, simulating a blocking behavior, or return an error. Specifically, on EAGAIN from inet_accept, the backend shouldn't return "EAGAIN" to the client. Instead, it should simply continue the wait. Otherwise, the client will send another accept request, which will cause another EAGAIN to be sent back, which is a waste of resources and not conforming to the expected behavior. Change the behavior by turning the "goto error" into a return. Signed-off-by: Stefano Stabellini Reviewed-by: Boris Ostrovsky Signed-off-by: Juergen Gross --- drivers/xen/pvcalls-back.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/xen/pvcalls-back.c') diff --git a/drivers/xen/pvcalls-back.c b/drivers/xen/pvcalls-back.c index c7822d8078b9..156e5aea36db 100644 --- a/drivers/xen/pvcalls-back.c +++ b/drivers/xen/pvcalls-back.c @@ -548,7 +548,7 @@ static void __pvcalls_back_accept(struct work_struct *work) ret = inet_accept(mappass->sock, sock, O_NONBLOCK, true); if (ret == -EAGAIN) { sock_release(sock); - goto out_error; + return; } map = pvcalls_new_active_socket(fedata, -- cgit v1.2.3