Drivers: hv: util: Specify ring buffer size using Hyper-V page size

VMbus ring buffers are sized based on the 4K page size used by
Hyper-V. The Linux guest page size may not be 4K on all architectures
so use the Hyper-V page size to specify the ring buffer size.

Signed-off-by: Himadri Pandya <himadri18.07@gmail.com>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/hv/hv_util.c b/drivers/hv/hv_util.c
index c2c08f26bd5f9c5bb965164d4d987625e17cbd59..766bd84573461a58d5c4d6dc52fec876502c050b 100644 (file)
--- a/drivers/hv/hv_util.c
+++ b/drivers/hv/hv_util.c
@@ -413,8 +413,9 @@ static int util_probe(struct hv_device *dev,
 
        hv_set_drvdata(dev, srv);
 
-       ret = vmbus_open(dev->channel, 4 * PAGE_SIZE, 4 * PAGE_SIZE, NULL, 0,
-                       srv->util_cb, dev->channel);
+       ret = vmbus_open(dev->channel, 4 * HV_HYP_PAGE_SIZE,
+                        4 * HV_HYP_PAGE_SIZE, NULL, 0, srv->util_cb,
+                        dev->channel);
        if (ret)
                goto error;