From: Michael S. Tsirkin <mst@redhat.com>
Date: Fri, 7 Apr 2017 05:45:32 +0000 (+0300)
Subject: ptr_ring: support testing different batching sizes
X-Git-Tag: v4.12-rc1~34^2~3
X-Git-Url: https://git.kernelconcepts.de/?p=karo-tx-linux.git;a=commitdiff_plain;h=3008a206209fba670ab1da5590694a616b705efb

ptr_ring: support testing different batching sizes

Use the param flag for that.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---

diff --git a/tools/virtio/ringtest/ptr_ring.c b/tools/virtio/ringtest/ptr_ring.c
index 635b07b4fdd3..7b22f1b20652 100644
--- a/tools/virtio/ringtest/ptr_ring.c
+++ b/tools/virtio/ringtest/ptr_ring.c
@@ -97,6 +97,9 @@ void alloc_ring(void)
 {
 	int ret = ptr_ring_init(&array, ring_size, 0);
 	assert(!ret);
+	/* Hacky way to poke at ring internals. Useful for testing though. */
+	if (param)
+		array.batch = param;
 }
 
 /* guest side */