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rps: add __rcu annotations

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Add __rcu annotations to :
	(struct netdev_rx_queue)->rps_map
	(struct netdev_rx_queue)->rps_flow_table
	struct rps_sock_flow_table *rps_sock_flow_table;

And use appropriate rcu primitives.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet 2010-10-25 03:02:02 +00:00 • committed by David S. Miller
parent f6318e5588
commit 6e3f7faf3e
4 changed files with 27 additions and 20 deletions
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12
include/linux/netdevice.h
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@ -585,15 +585,15 @@ static inline void rps_reset_sock_flow(struct rps_sock_flow_table *table,
table->ents[hash & table->mask] = RPS_NO_CPU;
}
extern struct rps_sock_flow_table *rps_sock_flow_table;
extern struct rps_sock_flow_table __rcu *rps_sock_flow_table;
/* This structure contains an instance of an RX queue. */
struct netdev_rx_queue {
struct rps_map *rps_map;
struct rps_dev_flow_table *rps_flow_table;
struct kobject kobj;
struct netdev_rx_queue *first;
atomic_t count;
struct rps_map __rcu *rps_map;
struct rps_dev_flow_table __rcu *rps_flow_table;
struct kobject kobj;
struct netdev_rx_queue *first;
atomic_t count;
} ____cacheline_aligned_in_smp;
#endif /* CONFIG_RPS */