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bridge: vlan: adjust rhashtable initial size and hash locks size 

As Stephen pointed out the default initial size is more than we need, so
let's start small (4 elements, thus nelem_hint = 3). Also limit the hash
locks to the number of CPUs as we don't need any write-side scaling and
this looks like the minimum.

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
steinar/wifi_calib_4_9_kernel
Nikolay Aleksandrov 2015-09-30 20:16:51 +02:00 committed by David S. Miller
parent 4bf1b54f9d
commit 8af78b6487
1 changed files with 2 additions and 0 deletions
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net/bridge/br_vlan.c
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@ -19,6 +19,8 @@ static const struct rhashtable_params br_vlan_rht_params = {
.head_offset = offsetof(struct net_bridge_vlan, vnode),
.key_offset = offsetof(struct net_bridge_vlan, vid),
.key_len = sizeof(u16),
.nelem_hint = 3,
.locks_mul = 1,
.max_size = VLAN_N_VID,
.obj_cmpfn = br_vlan_cmp,
.automatic_shrinking = true,