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| author | Eric Dumazet <eric.dumazet@gmail.com> | 2010-09-30 05:36:29 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-10-01 00:36:51 -0700 |
| commit | 367e5e376922dcf52f92e1db436010fb828d3bfa (patch) | |
| tree | ee2fb2f50b23303a06b93492da2dea74b78cb263 | |
| parent | bb7196d2bf30e4cb06fe5fed046c9084465e854c (diff) | |
| download | lwn-367e5e376922dcf52f92e1db436010fb828d3bfa.tar.gz lwn-367e5e376922dcf52f92e1db436010fb828d3bfa.zip | |
neigh: reorder fields in struct neighbour
On 64bit arches, there are two 32bit holes that we can remove.
sizeof(struct neighbour) shrinks from 0xf8 to 0xf0 bytes
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | include/net/neighbour.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/include/net/neighbour.h b/include/net/neighbour.h index 242879b6c4df..7d08fd1062f0 100644 --- a/include/net/neighbour.h +++ b/include/net/neighbour.h @@ -94,7 +94,7 @@ struct neighbour { struct neighbour *next; struct neigh_table *tbl; struct neigh_parms *parms; - struct net_device *dev; + struct net_device *dev; unsigned long used; unsigned long confirmed; unsigned long updated; @@ -102,11 +102,11 @@ struct neighbour { __u8 nud_state; __u8 type; __u8 dead; + atomic_t refcnt; atomic_t probes; rwlock_t lock; unsigned char ha[ALIGN(MAX_ADDR_LEN, sizeof(unsigned long))]; struct hh_cache *hh; - atomic_t refcnt; int (*output)(struct sk_buff *skb); struct sk_buff_head arp_queue; struct timer_list timer; @@ -163,7 +163,7 @@ struct neigh_table { atomic_t entries; rwlock_t lock; unsigned long last_rand; - struct kmem_cache *kmem_cachep; + struct kmem_cache *kmem_cachep; struct neigh_statistics __percpu *stats; struct neighbour **hash_buckets; unsigned int hash_mask; |