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Subject[PATCH] vsock: ratelimit unknown ioctl error message
Date
From: Colin Ian King <colin.king@canonical.com>

When exercising the kernel with stress-ng with some ioctl tests the
"Unknown ioctl" error message is spamming the kernel log at a high
rate. Rate limit this message to reduce the noise.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
net/vmw_vsock/af_vsock.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c
index 9e93bc201cc0..b8feb9223454 100644
--- a/net/vmw_vsock/af_vsock.c
+++ b/net/vmw_vsock/af_vsock.c
@@ -2072,7 +2072,7 @@ static long vsock_dev_do_ioctl(struct file *filp,
break;

default:
- pr_err("Unknown ioctl %d\n", cmd);
+ pr_err_ratelimited("Unknown ioctl %d\n", cmd);
retval = -EINVAL;
}

--
2.27.0
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