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rhashtable: remove insecure_elasticity

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commit 83e7e4ce9e ("mac80211: Use rhltable instead of rhashtable")
removed the last user that made use of 'insecure_elasticity' parameter,
i.e. the default of 16 is used everywhere.

Replace it with a constant.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Florian Westphal 2017-04-16 02:55:09 +02:00 • committed by David S. Miller
parent 3a9ca1e2cb
commit 5f8ddeab10
2 changed files with 17 additions and 21 deletions
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17
lib/rhashtable.c
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@ -535,7 +535,7 @@ static void *rhashtable_lookup_one(struct rhashtable *ht,
struct rhash_head *head;
int elasticity;
elasticity = ht->elasticity;
elasticity = RHT_ELASTICITY;
pprev = rht_bucket_var(tbl, hash);
rht_for_each_continue(head, *pprev, tbl, hash) {
struct rhlist_head *list;
@ -972,21 +972,6 @@ int rhashtable_init(struct rhashtable *ht,
if (params->nelem_hint)
size = rounded_hashtable_size(&ht->p);
/* The maximum (not average) chain length grows with the
* size of the hash table, at a rate of (log N)/(log log N).
* The value of 16 is selected so that even if the hash
* table grew to 2^32 you would not expect the maximum
* chain length to exceed it unless we are under attack
* (or extremely unlucky).
*
* As this limit is only to detect attacks, we don't need
* to set it to a lower value as you'd need the chain
* length to vastly exceed 16 to have any real effect
* on the system.
*/
if (!params->insecure_elasticity)
ht->elasticity = 16;
if (params->locks_mul)
ht->p.locks_mul = roundup_pow_of_two(params->locks_mul);
else