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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>
This commit is contained in:
Himadri Pandya 2019-07-25 05:03:15 +00:00 committed by Sasha Levin
parent b14d749ac5
commit 0541a22594
1 changed files with 3 additions and 2 deletions
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5
drivers/hv/hv_util.c
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@ -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;