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neighbor: Improve neighbour struct layout
Move arp_queue_len_bytes ahead of arp_queue to remove two 4-byte holes. Ensure ha element is always 8-byte aligned. Signed-off-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -140,8 +140,8 @@ struct neighbour {
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unsigned long updated;
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rwlock_t lock;
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refcount_t refcnt;
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struct sk_buff_head arp_queue;
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unsigned int arp_queue_len_bytes;
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struct sk_buff_head arp_queue;
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struct timer_list timer;
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unsigned long used;
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atomic_t probes;
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@ -150,7 +150,7 @@ struct neighbour {
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__u8 type;
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__u8 dead;
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seqlock_t ha_lock;
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unsigned char ha[ALIGN(MAX_ADDR_LEN, sizeof(unsigned long))];
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unsigned char ha[ALIGN(MAX_ADDR_LEN, sizeof(unsigned long))] __aligned(8);
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struct hh_cache hh;
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int (*output)(struct neighbour *, struct sk_buff *);
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const struct neigh_ops *ops;
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