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authorEliad Peller <eliad@wizery.com>2012-09-09 14:43:51 +0300
committerJohannes Berg <johannes.berg@intel.com>2012-09-10 12:44:17 +0200
commitb22cfcfcae5b2c1e9b43543b6a23e5ef517de8f8 (patch)
treeb87ec8f76a6ccdd4d8d5ed9752d4bfedf3ea04c3 /net/mac80211/sta_info.h
parente548c49e6dc6b08b59042930a2e90c69c13c9293 (diff)
mac80211: use call_rcu() on sta deletion
mac80211 calls synchronize_rcu() on sta deletion, which increase the roaming time significantly. Convert it into a call_rcu() mechanism, in order to avoid blocking. Since some of the cleanup functions might sleep, schedule from the call_rcu callback a new work that will do the actual cleanup. In order to make sure the cleanup occurs before the interface went down, flush local->workqueue on ieee80211_do_stop(). Signed-off-by: Yoni Divinsky <yoni.divinsky@ti.com> Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/sta_info.h')
-rw-r--r--net/mac80211/sta_info.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index a470e1123a5..c88f161f811 100644
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -287,6 +287,7 @@ struct sta_ampdu_mlme {
struct sta_info {
/* General information, mostly static */
struct list_head list;
+ struct rcu_head rcu_head;
struct sta_info __rcu *hnext;
struct ieee80211_local *local;
struct ieee80211_sub_if_data *sdata;
@@ -297,6 +298,7 @@ struct sta_info {
spinlock_t lock;
struct work_struct drv_unblock_wk;
+ struct work_struct free_sta_wk;
u16 listen_interval;