kernel.git/net/ipv4/arp.c, branch linux-2.6.37.y

neigh: Protect neigh->ha[] with a seqlock

2010-10-11T19:54:04Z

Add a seqlock in struct neighbour to protect neigh->ha[], and avoid dirtying neighbour in stress situation (many different flows / dsts) Dirtying takes place because of read_lock(&n->lock) and n->used writes. Switching to a seqlock, and writing n->used only on jiffies changes permits less dirtying. Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller

net neigh: RCU conversion of neigh hash table

2010-10-05T21:54:36Z

David This is the first step for RCU conversion of neigh code. Next patches will convert hash_buckets[] and "struct neighbour" to RCU protected objects. Thanks [PATCH net-next] net neigh: RCU conversion of neigh hash table Instead of storing hash_buckets, hash_mask and hash_rnd in "struct neigh_table", a new structure is defined : struct neigh_hash_table { struct neighbour **hash_buckets; unsigned int hash_mask; __u32 hash_rnd; struct rcu_head rcu; }; And "struct neigh_table" has an RCU protected pointer to such a neigh_hash_table. This means the signature of (*hash)() function changed: We need to add a third parameter with the actual hash_rnd value, since this is not anymore a neigh_table field. Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller

arp: remove unnecessary export of arp_broken_ops

2010-09-30T02:45:35Z

arp_broken_ops is only used in arp.c Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller

net: return operator cleanup

2010-09-23T21:33:39Z

Change "return (EXPR);" to "return EXPR;" return is not a function, parentheses are not required. Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller

net: arp: code cleanup

2010-09-02T17:12:06Z

Clean the code up according to Documentation/CodingStyle. Don't initialize the variable dont_send in arp_process(). Remove the temporary varialbe flags in arp_state_to_flags(). Signed-off-by: Changli Gao Signed-off-by: David S. Miller

net/ipv4: EXPORT_SYMBOL cleanups

2010-07-12T19:57:54Z

CodingStyle cleanups EXPORT_SYMBOL should immediately follow the symbol declaration. Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller

arp: RCU change in arp_solicit()

2010-06-26T04:33:16Z

Avoid two atomic ops in arp_solicit() Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller

net-next: remove useless union keyword

2010-06-11T06:31:35Z

remove useless union keyword in rtable, rt6_info and dn_route. Since there is only one member in a union, the union keyword isn't useful. Signed-off-by: Changli Gao Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller

arp: RCU changes

2010-06-04T03:01:52Z

Avoid two atomic ops in arp_fwd_proxy() Avoid two atomic ops in arp_process() Valid optims since arp_rcv() is run under rcu_read_lock() Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller

net: Use ip_route_input_noref() in input path

2010-05-18T00:18:51Z

Use ip_route_input_noref() in ip fast path, to avoid two atomic ops per incoming packet. Note: loopback is excluded from this optimization in ip_rcv_finish() Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller