From: Johannes Berg <johannes@sipsolutions.net>
Date: Wed, 28 Nov 2007 09:55:32 +0000 (+0100)
Subject: mac80211: make ieee80211_iterate_active_interfaces not need rtnl
X-Git-Tag: v2.6.25-rc1~1162^2~1302
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e38bad4766a110b61fa6038f10be16ced8c6cc38;p=pandora-kernel.git

mac80211: make ieee80211_iterate_active_interfaces not need rtnl

Interface iteration in mac80211 can be done without holding any
locks because I converted it to RCU. Initially, I thought this
wouldn't be needed for ieee80211_iterate_active_interfaces but
it's turning out that multi-BSS AP support can be much simpler
in a driver if ieee80211_iterate_active_interfaces can be called
without holding locks. This converts it to use RCU, it adds a
requirement that the callback it invokes cannot sleep.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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