From: Ben Greear Date: Fri, 1 Apr 2016 21:13:31 +0000 (-0700) Subject: mac80211: ensure no limits on station rhashtable X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=b6bf8c688e07c056f3059d870f6db44777259fe7;p=deliverable%2Flinux.git mac80211: ensure no limits on station rhashtable By default, the rhashtable logic will fail to insert objects if the key-chains are too long and un-balanced. In the degenerate case where mac80211 is creating many virtual interfaces connected to the same peer(s), this case can happen. St insecure_elasticity to true to allow chains to grow as long as needed. Signed-off-by: Ben Greear [remove message, change commit message slightly] Signed-off-by: Johannes Berg --- diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c index 18b56d7a2dbd..861b93ffbe92 100644 --- a/net/mac80211/sta_info.c +++ b/net/mac80211/sta_info.c @@ -67,6 +67,7 @@ static const struct rhashtable_params sta_rht_params = { .nelem_hint = 3, /* start small */ + .insecure_elasticity = true, /* Disable chain-length checks. */ .automatic_shrinking = true, .head_offset = offsetof(struct sta_info, hash_node), .key_offset = offsetof(struct sta_info, addr),