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net: Make RFS socket operations not be inet specific.

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Idea from Eric Dumazet.

As for placement inside of struct sock, I tried to choose a place
that otherwise has a 32-bit hole on 64-bit systems.

Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
This commit is contained in:
David S. Miller 2010-04-27 15:05:31 -07:00
parent c4ee6a5348
commit c58dc01bab
5 changed files with 45 additions and 44 deletions
Download patch file Download diff file Expand all files Collapse all files

37
include/net/inet_sock.h
View file

@ -102,7 +102,6 @@ struct rtable;
* @uc_ttl - Unicast TTL
* @inet_sport - Source port
* @inet_id - ID counter for DF pkts
* @rxhash - flow hash received from netif layer
* @tos - TOS
* @mc_ttl - Multicasting TTL
* @is_icsk - is this an inet_connection_sock?
@ -126,9 +125,6 @@ struct inet_sock {
__u16 cmsg_flags;
__be16 inet_sport;
__u16 inet_id;
#ifdef CONFIG_RPS
__u32 rxhash;
#endif
struct ip_options *opt;
__u8 tos;
@ -224,37 +220,4 @@ static inline __u8 inet_sk_flowi_flags(const struct sock *sk)
return inet_sk(sk)->transparent ? FLOWI_FLAG_ANYSRC : 0;
}
static inline void inet_rps_record_flow(const struct sock *sk)
{
#ifdef CONFIG_RPS
struct rps_sock_flow_table *sock_flow_table;
rcu_read_lock();
sock_flow_table = rcu_dereference(rps_sock_flow_table);
rps_record_sock_flow(sock_flow_table, inet_sk(sk)->rxhash);
rcu_read_unlock();
#endif
}
static inline void inet_rps_reset_flow(const struct sock *sk)
{
#ifdef CONFIG_RPS
struct rps_sock_flow_table *sock_flow_table;
rcu_read_lock();
sock_flow_table = rcu_dereference(rps_sock_flow_table);
rps_reset_sock_flow(sock_flow_table, inet_sk(sk)->rxhash);
rcu_read_unlock();
#endif
}
static inline void inet_rps_save_rxhash(struct sock *sk, u32 rxhash)
{
#ifdef CONFIG_RPS
if (unlikely(inet_sk(sk)->rxhash != rxhash)) {
inet_rps_reset_flow(sk);
inet_sk(sk)->rxhash = rxhash;
}
#endif
}
#endif /* _INET_SOCK_H */