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| author | Duan Jiong <duanj.fnst@cn.fujitsu.com> | 2014-02-27 17:14:41 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-02-27 18:21:17 -0500 |
| commit | feff9ab2e7fa773b6a3965f77375fe89f7fd85cf (patch) | |
| tree | a8b1f2cc3069397a30b39abc5e56613686334b4f /net | |
| parent | 352063c839ba9605a3b9ebbc1906f32ec5d8e269 (diff) | |
| download | linux-feff9ab2e7fa773b6a3965f77375fe89f7fd85cf.tar.gz linux-feff9ab2e7fa773b6a3965f77375fe89f7fd85cf.tar.bz2 linux-feff9ab2e7fa773b6a3965f77375fe89f7fd85cf.zip | |
neigh: recompute reachabletime before returning from neigh_periodic_work()
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>
Diffstat (limited to 'net')
| -rw-r--r-- | net/core/neighbour.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/net/core/neighbour.c b/net/core/neighbour.c index e1aa0f36cfe7..e16129019c66 100644 --- a/net/core/neighbour.c +++ b/net/core/neighbour.c @@ -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]; |