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hv_netvsc: use RCU to protect vf_netdev

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The vf_netdev pointer in the netvsc device context can simply be protected
by RCU because network device destruction is already RCU synchronized.

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Stephen Hemminger
2016-09-22 16:56:33 -07:00
committed by David S. Miller
parent e8ff40d4bf
commit f207c10d98
2 changed files with 16 additions and 15 deletions
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2
drivers/net/hyperv/hyperv_net.h
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@@ -695,7 +695,7 @@ struct net_device_context {
bool start_remove;
/* State to manage the associated VF interface. */
struct net_device *vf_netdev;
struct net_device __rcu *vf_netdev;
bool vf_inject;
atomic_t vf_use_cnt;
/* 1: allocated, serial number is valid. 0: not allocated */