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neigh: recompute reachabletime before returning from neigh_periodic_work()

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If the neigh table's entries is less than gc_thresh1, the function
will return directly, and the reachabletime will not be recompute,
so the reachabletime can be guessed.

Signed-off-by: Duan Jiong <duanj.fnst@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Duan Jiong 2014-02-27 17:14:41 +08:00 committed by David S. Miller
parent 352063c839
commit feff9ab2e7
1 changed files with 3 additions and 3 deletions
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6
net/core/neighbour.c
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@ -766,9 +766,6 @@ static void neigh_periodic_work(struct work_struct *work)
nht = rcu_dereference_protected(tbl->nht,
lockdep_is_held(&tbl->lock));
if (atomic_read(&tbl->entries) < tbl->gc_thresh1)
goto out;
/*
* periodically recompute ReachableTime from random function
*/
@ -781,6 +778,9 @@ static void neigh_periodic_work(struct work_struct *work)
neigh_rand_reach_time(NEIGH_VAR(p, BASE_REACHABLE_TIME));
}
if (atomic_read(&tbl->entries) < tbl->gc_thresh1)
goto out;
for (i = 0 ; i < (1 << nht->hash_shift); i++) {
np = &nht->hash_buckets[i];