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authorJohannes Berg <johannes.berg@intel.com>2010-06-10 08:21:39 (GMT)
committerJohn W. Linville <linville@tuxdriver.com>2010-06-14 19:39:27 (GMT)
commita622ab72b4dcfdf53e24b16e9530cb876979a00c (patch)
tree170d2ccf3a594f3675b5fa58378319031054e806 /net/mac80211/rc80211_minstrel_ht.c
parenta87f736d942c86255e3088c606f0e3eab6bbf784 (diff)
downloadlinux-fsl-qoriq-a622ab72b4dcfdf53e24b16e9530cb876979a00c.tar.xz
mac80211: use RCU for TX aggregation
Currently we allocate some memory for each TX aggregation session and additionally keep a state bitmap indicating the state it is in. By using RCU to protect the pointer, moving the state into the structure and some locking trickery we can avoid locking when the TX agg session is fully operational. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/rc80211_minstrel_ht.c')
-rw-r--r--net/mac80211/rc80211_minstrel_ht.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/mac80211/rc80211_minstrel_ht.c b/net/mac80211/rc80211_minstrel_ht.c
index c23f082..7a04951 100644
--- a/net/mac80211/rc80211_minstrel_ht.c
+++ b/net/mac80211/rc80211_minstrel_ht.c
@@ -365,7 +365,7 @@ minstrel_aggr_check(struct minstrel_priv *mp, struct ieee80211_sta *pubsta, stru
return;
tid = *ieee80211_get_qos_ctl(hdr) & IEEE80211_QOS_CTL_TID_MASK;
- if (likely(sta->ampdu_mlme.tid_state_tx[tid] != HT_AGG_STATE_IDLE))
+ if (likely(sta->ampdu_mlme.tid_tx[tid]))
return;
ieee80211_start_tx_ba_session(pubsta, tid);