From: Johannes Berg <johannes@sipsolutions.net>
To: John Linville <linville@tuxdriver.com>
Cc: linux-wireless@vger.kernel.org
Subject: [PATCH 5/7] mac80211: debounce queue stop/wake
Date: Wed, 28 Mar 2012 11:04:27 +0200 [thread overview]
Message-ID: <20120328090432.832972620@sipsolutions.net> (raw)
In-Reply-To: 20120328090422.367469100@sipsolutions.net
From: Johannes Berg <johannes.berg@intel.com>
When the queue status changes we need to do a fair
bit of work, so ignore no-op changes early.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
net/mac80211/util.c | 6 ++++++
1 file changed, 6 insertions(+)
--- a/net/mac80211/util.c 2012-03-28 09:33:36.000000000 +0200
+++ b/net/mac80211/util.c 2012-03-28 09:45:03.000000000 +0200
@@ -276,6 +276,9 @@ static void __ieee80211_wake_queue(struc
if (WARN_ON(queue >= hw->queues))
return;
+ if (!test_bit(reason, &local->queue_stop_reasons[queue]))
+ return;
+
__clear_bit(reason, &local->queue_stop_reasons[queue]);
if (local->queue_stop_reasons[queue] != 0)
@@ -323,6 +326,9 @@ static void __ieee80211_stop_queue(struc
if (WARN_ON(queue >= hw->queues))
return;
+ if (test_bit(reason, &local->queue_stop_reasons[queue]))
+ return;
+
__set_bit(reason, &local->queue_stop_reasons[queue]);
rcu_read_lock();
next prev parent reply other threads:[~2012-03-28 9:07 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-28 9:04 [PATCH 0/7] mac80211 queue rework preparations Johannes Berg
2012-03-28 9:04 ` [PATCH 1/7] mac80211: remove antenna_sel_tx TX info field Johannes Berg
2012-03-28 9:04 ` [PATCH 2/7] cfg80211/nl80211: clarify TX queue API Johannes Berg
2012-03-28 9:04 ` [PATCH 3/7] mac80211: refuse TX queue configuration on non-QoS HW Johannes Berg
2012-03-28 9:04 ` [PATCH 4/7] mac80211: decouple # of netdev queues from HW queues Johannes Berg
2012-03-28 9:04 ` Johannes Berg [this message]
2012-03-28 9:04 ` [PATCH 6/7] mac80211: lazily stop queues in add_pending Johannes Berg
2012-03-28 9:04 ` [PATCH 7/7] mac80211: use IEEE80211_NUM_ACS Johannes Berg
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