linux-kernel - [PATCH v2] tools/virtio: creating pipe assertion in vringh

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Date: Mon, 27 May 2024 18:46:05 +0900
From: yskelg@...il.com
To: "Michael S. Tsirkin" <mst@...hat.com>,
	Jason Wang <jasowang@...hat.com>,
	Xuan Zhuo <xuanzhuo@...ux.alibaba.com>,
	Eugenio Pérez <eperezma@...hat.com>
Cc: skhan@...uxfoundation.org,
	Austin Kim <austindh.kim@...il.com>,
	shjy180909@...il.com,
	virtualization@...ts.linux.dev,
	linux-kernel@...r.kernel.org,
	linux-kernel-mentees@...ts.linuxfoundation.org,
	Yunseong Kim <yskelg@...il.com>
Subject: [PATCH v2] tools/virtio: creating pipe assertion in vringh_test

From: Yunseong Kim <yskelg@...il.com>

The parallel_test() function in vringh_test needs to verify
the creation of the guest/host pipe.

Signed-off-by: Yunseong Kim <yskelg@...il.com>
---
 tools/virtio/vringh_test.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/tools/virtio/vringh_test.c b/tools/virtio/vringh_test.c
index 98ff808d6f0c..43d3a6aa1dcf 100644
--- a/tools/virtio/vringh_test.c
+++ b/tools/virtio/vringh_test.c
@@ -139,7 +139,7 @@ static int parallel_test(u64 features,
 			 bool fast_vringh)
 {
 	void *host_map, *guest_map;
-	int fd, mapsize, to_guest[2], to_host[2];
+	int pipe_ret, fd, mapsize, to_guest[2], to_host[2];
 	unsigned long xfers = 0, notifies = 0, receives = 0;
 	unsigned int first_cpu, last_cpu;
 	cpu_set_t cpu_set;
@@ -161,8 +161,11 @@ static int parallel_test(u64 features,
 	host_map = mmap(NULL, mapsize, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
 	guest_map = mmap(NULL, mapsize, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
 
-	pipe(to_guest);
-	pipe(to_host);
+	pipe_ret = pipe(to_guest);
+	assert(!pipe_ret);
+
+	pipe_ret = pipe(to_host);
+	assert(!pipe_ret);
 
 	CPU_ZERO(&cpu_set);
 	find_cpus(&first_cpu, &last_cpu);
-- 
2.34.1