[PATCH 1/1] hv_netvsc: Allocate the receive buffer from the correct NUMA node

From: K. Y. Srinivasan
Date: Thu May 28 2015 - 16:35:42 EST


Allocate the receive bufer from the NUMA node assigned to the primary
channel.

Signed-off-by: K. Y. Srinivasan <kys@xxxxxxxxxxxxx>
---
drivers/net/hyperv/netvsc.c | 7 ++++++-
1 files changed, 6 insertions(+), 1 deletions(-)

diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c
index b024968..d187965 100644
--- a/drivers/net/hyperv/netvsc.c
+++ b/drivers/net/hyperv/netvsc.c
@@ -227,13 +227,18 @@ static int netvsc_init_buf(struct hv_device *device)
struct netvsc_device *net_device;
struct nvsp_message *init_packet;
struct net_device *ndev;
+ int node;

net_device = get_outbound_net_device(device);
if (!net_device)
return -ENODEV;
ndev = net_device->ndev;

- net_device->recv_buf = vzalloc(net_device->recv_buf_size);
+ node = cpu_to_node(device->channel->target_cpu);
+ net_device->recv_buf = vzalloc_node(net_device->recv_buf_size, node);
+ if (!net_device->recv_buf)
+ net_device->recv_buf = vzalloc(net_device->recv_buf_size);
+
if (!net_device->recv_buf) {
netdev_err(ndev, "unable to allocate receive "
"buffer of size %d\n", net_device->recv_buf_size);
--
1.7.4.1

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