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authorJohannes Berg <johannes.berg@intel.com>2012-12-14 14:56:03 +0100
committerJohannes Berg <johannes.berg@intel.com>2013-01-03 13:01:31 +0100
commit75de9113bb9dc4939a7cd54e4bdfad555b35f5b1 (patch)
treefdc5609f042781ce035e5e88272809db81f5493c /net/mac80211/sta_info.c
parent361c9c8b0eeeec7d881e018d5143bf883558c566 (diff)
downloadop-kernel-dev-75de9113bb9dc4939a7cd54e4bdfad555b35f5b1.zip
op-kernel-dev-75de9113bb9dc4939a7cd54e4bdfad555b35f5b1.tar.gz
mac80211: optimise AP stop RCU handling
If there are VLANs, stopping an AP is inefficient as it calls rcu_barrier() once for each interface (the VLANs and the AP itself). Optimise this by moving rcu_barrier() out of the station cleanups and calling it only once for all interfaces combined. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/sta_info.c')
-rw-r--r--net/mac80211/sta_info.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index 7199b9d..738f934 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -920,8 +920,6 @@ int sta_info_flush_defer(struct ieee80211_sub_if_data *sdata)
void sta_info_flush_cleanup(struct ieee80211_sub_if_data *sdata)
{
- rcu_barrier();
-
ieee80211_cleanup_sdata_stas(sdata);
cancel_work_sync(&sdata->cleanup_stations_wk);
}
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