[RFC PATCH bpf-next v2 9/9] samples/bpf: add option to set the busy-poll budget

[Björn Töpel <bjorn.topel@xxxxxxxxx>]

From: Björn Töpel <bjorn.topel@xxxxxxxxx>

Support for the SO_BUSY_POLL_BUDGET setsockopt, via the batching
option ('b').

Signed-off-by: Björn Töpel <bjorn.topel@xxxxxxxxx>
---
 samples/bpf/xdpsock_user.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/samples/bpf/xdpsock_user.c b/samples/bpf/xdpsock_user.c
index 162444fa9627..0ed05e6e40e2 100644
--- a/samples/bpf/xdpsock_user.c
+++ b/samples/bpf/xdpsock_user.c
@@ -1482,6 +1482,11 @@ static void apply_setsockopt(struct xsk_socket_info *xsk)
 	if (setsockopt(xsk_socket__fd(xsk->xsk), SOL_SOCKET, SO_BUSY_POLL,
 		       (void *)&sock_opt, sizeof(sock_opt)) < 0)
 		exit_with_error(errno);
+
+	sock_opt = opt_batch_size;
+	if (setsockopt(xsk_socket__fd(xsk->xsk), SOL_SOCKET, SO_BUSY_POLL_BUDGET,
+		       (void *)&sock_opt, sizeof(sock_opt)) < 0)
+		exit_with_error(errno);
 }
 
 int main(int argc, char **argv)
-- 
2.27.0