Running out of request IDs on a channel essentially produces the same
effect as running out of space in the ring buffer, in that -EAGAIN is
returned. The error message in hv_ringbuffer_write() should either be
dropped (since we don't output a message when the ring buffer is full)
or be made conditional/debug-only.
Suggested-by: Michael Kelley <redacted>
Signed-off-by: Andrea Parri (Microsoft) <parri.andrea@gmail.com>
Fixes: e8b7db38449ac ("Drivers: hv: vmbus: Add vmbus_requestor data structure for VMBus hardening")
---
drivers/hv/ring_buffer.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/hv/ring_buffer.c b/drivers/hv/ring_buffer.c
index 35833d4d1a1dc..ecd82ebfd5bc4 100644
--- a/drivers/hv/ring_buffer.c
+++ b/drivers/hv/ring_buffer.c
@@ -313,7 +313,6 @@ int hv_ringbuffer_write(struct vmbus_channel *channel,
rqst_id = vmbus_next_request_id(&channel->requestor, requestid);
if (rqst_id == VMBUS_RQST_ERROR) {
spin_unlock_irqrestore(&outring_info->ring_lock, flags);
- pr_err("No request id available\n");
return -EAGAIN;
}
}--
2.25.1