From: Johannes Berg <johannes@sipsolutions.net>
To: linux-wireless@vger.kernel.org
Cc: David Miller <davem@davemloft.net>,
Ron Rindjunsky <ron.rindjunsky@intel.com>
Subject: [RFC 0/3] mac80211 tx mq aggregation fixes
Date: Sat, 19 Jul 2008 02:41:47 +0200 [thread overview]
Message-ID: <20080719004147.795661000@sipsolutions.net> (raw)
As we discussed earlier, there is now a race in mac80211 where
you can get packets queued onto the aggregation queue while draining
it, and some can be left on there. Fixing that is achieved by deferring
the draining to a workqueue and calling synchronize_net() before doing
it.
Also noticed another problem: when we start aggregation we add the
queue before the hardware said it's ok, thus we can end up queuing
packets to a new aggregation queue we won't be using, fix that one
before since it was easier.
Locking gets a bit tricky unfortunately.
johannes
next reply other threads:[~2008-07-19 0:45 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-19 0:41 Johannes Berg [this message]
2008-07-19 0:41 ` [RFC 1/3] mac80211: sane arguments to ieee80211_ht_agg_queue_remove Johannes Berg
2008-07-19 0:41 ` [RFC 2/3] mac80211: fix race during adding HT queues Johannes Berg
2008-07-19 0:41 ` [RFC 3/3] mac80211: fix requeue race Johannes Berg
2008-07-19 0:52 ` Johannes Berg
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