Pravin B Shelar 559835ea72
vxlan: Use RCU apis to access sk_user_data. ...
Use of RCU api makes vxlan code easier to understand. It also
fixes bug due to missing ACCESS_ONCE() on sk_user_data dereference.
In rare case without ACCESS_ONCE() compiler might omit vs on
sk_user_data dereference.
Compiler can use vs as alias for sk->sk_user_data, resulting in
multiple sk_user_data dereference in rcu read context which
could change.
CC: Jesse Gross <jesse@nicira.com >
Signed-off-by: Pravin B Shelar <pshelar@nicira.com >
Signed-off-by: David S. Miller <davem@davemloft.net >
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Pravin B Shelar
559835ea72