diff options
| author | Himadri Pandya <himadrispandya@gmail.com> | 2019-07-25 05:03:15 +0000 |
|---|---|---|
| committer | Sasha Levin <sashal@kernel.org> | 2019-11-21 20:10:45 -0500 |
| commit | 0541a225945d5e0d650353f51614812aa820c6be (patch) | |
| tree | b9a8eebc258ab5fd876af0e5f788aeedf5e8fa2d /drivers/hv/hv_util.c | |
| parent | b14d749ac5abdf311321172ae11e6ad1be4293e9 (diff) | |
| download | lwn-0541a225945d5e0d650353f51614812aa820c6be.tar.gz lwn-0541a225945d5e0d650353f51614812aa820c6be.zip | |
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>
Diffstat (limited to 'drivers/hv/hv_util.c')
| -rw-r--r-- | drivers/hv/hv_util.c | 5 |
1 files 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; |