net,rcu: convert call_rcu(listeners_free_rcu) to kfree_rcu()
The rcu callback listeners_free_rcu() just calls a kfree(), so we use kfree_rcu() instead of the call_rcu(listeners_free_rcu). Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
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@ -1566,12 +1566,6 @@ netlink_kernel_release(struct sock *sk)
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}
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}
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EXPORT_SYMBOL(netlink_kernel_release);
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EXPORT_SYMBOL(netlink_kernel_release);
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static void listeners_free_rcu(struct rcu_head *head)
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{
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kfree(container_of(head, struct listeners, rcu));
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}
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int __netlink_change_ngroups(struct sock *sk, unsigned int groups)
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int __netlink_change_ngroups(struct sock *sk, unsigned int groups)
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{
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{
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struct listeners *new, *old;
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struct listeners *new, *old;
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@ -1588,7 +1582,7 @@ int __netlink_change_ngroups(struct sock *sk, unsigned int groups)
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memcpy(new->masks, old->masks, NLGRPSZ(tbl->groups));
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memcpy(new->masks, old->masks, NLGRPSZ(tbl->groups));
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rcu_assign_pointer(tbl->listeners, new);
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rcu_assign_pointer(tbl->listeners, new);
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call_rcu(&old->rcu, listeners_free_rcu);
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kfree_rcu(old, rcu);
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}
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}
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tbl->groups = groups;
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tbl->groups = groups;
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