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@xxxxxxxxx> --- drivers/hv/hv_util.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/hv/hv_util.c b/drivers/hv/hv_util.c index c2c08f26bd5f..766bd8457346 100644 --- 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; -- 2.17.1
