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Johannes Berg a87f736d94 mac80211: use RCU for RX aggregation 
Currently we allocate some memory for each RX
aggregation session and additionally keep a
flag indicating whether or not it is valid.
By using RCU to protect the pointer and making
sure that the memory is fully set up before it
becomes visible to the RX path, we can remove
the need for the bool that indicates validity,
as well as for locking on the RX path since it
is always synchronised against itself, and we
can guarantee that all other modifications are
done when the structure is not visible to the
RX path.

The net result is that since we remove locking
requirements from the RX path, we can in the
future use any kind of lock for the setup and
teardown code paths.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
 		2010-06-14 15:39:27 -04:00
..
Kconfig mac80211: add the minstrel_ht rate control algorithm 2010-06-02 16:12:59 -04:00
Makefile mac80211: add the minstrel_ht rate control algorithm 2010-06-02 16:12:59 -04:00
aes_ccm.c mac80211: aes_ccm.c remove crypto wrapper and extra args 2008-07-08 14:16:02 -04:00
aes_ccm.h mac80211: pass scratch buffer directly, remove additional pointers 2008-07-08 14:16:02 -04:00
aes_cmac.c mac80211: 802.11w - Add BIP (AES-128-CMAC) 2009-01-29 16:00:02 -05:00
aes_cmac.h mac80211: 802.11w - Add BIP (AES-128-CMAC) 2009-01-29 16:00:02 -05:00
agg-rx.c mac80211: use RCU for RX aggregation 2010-06-14 15:39:27 -04:00
agg-tx.c mac80211: move aggregation callback processing 2010-06-14 15:39:27 -04:00
cfg.c cfg80211/mac80211: allow action frame TX/RX in IBSS 2010-06-14 15:38:16 -04:00
cfg.h [MAC80211]: rename ieee80211_cfg.h to cfg.h 2007-10-10 16:52:34 -07:00
chan.c mac80211: make a function static 2010-05-28 13:41:27 -04:00
debugfs.c mac80211: reduce debugfs code size 2010-06-03 14:14:41 -04:00
debugfs.h net: Remove unnecessary returns from void function()s 2010-05-17 23:23:14 -07:00
debugfs_key.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
debugfs_key.h mac80211: 802.11w - Use BIP (AES-128-CMAC) 2009-01-29 16:00:03 -05:00
debugfs_netdev.c Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem 2010-04-15 16:21:34 -04:00
debugfs_netdev.h mac80211: reduce reliance on netdev 2009-12-21 18:38:52 -05:00
debugfs_sta.c mac80211: use RCU for RX aggregation 2010-06-14 15:39:27 -04:00
debugfs_sta.h mac80211: RCU-ify STA info structure access 2008-03-06 15:30:46 -05:00
driver-ops.h Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 2010-06-07 15:13:46 -04:00
driver-trace.c mac80211: fix sparse warnings/errors 2009-08-04 16:43:25 -04:00
driver-trace.h mac80211: clean up ieee80211_stop_tx_ba_session 2010-06-03 14:10:45 -04:00
event.c cfg80211: use proper allocation flags 2009-07-10 15:01:49 -04:00
ht.c mac80211: remove ieee80211_sta_stop_rx_ba_session 2010-04-07 14:38:03 -04:00
ibss.c mac80211: pull mgmt frame rx into rx handler 2010-06-14 15:39:26 -04:00
ieee80211_i.h mac80211: move aggregation callback processing 2010-06-14 15:39:27 -04:00
iface.c mac80211: move aggregation callback processing 2010-06-14 15:39:27 -04:00
key.c mac80211: simplify key locking 2010-06-03 14:10:46 -04:00
key.h mac80211: simplify key locking 2010-06-03 14:10:46 -04:00
led.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
led.h mac80211: rename files 2008-04-08 16:44:45 -04:00
main.c mac80211: move aggregation callback processing 2010-06-14 15:39:27 -04:00
mesh.c mac80211: pull mgmt frame rx into rx handler 2010-06-14 15:39:26 -04:00
mesh.h mac80211: pull mgmt frame rx into rx handler 2010-06-14 15:39:26 -04:00
mesh_hwmp.c mac80211: use common work struct 2010-06-14 15:38:17 -04:00
mesh_pathtbl.c mac80211: use common work struct 2010-06-14 15:38:17 -04:00
mesh_plink.c Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem 2010-04-15 16:21:34 -04:00
michael.c mac80211: remove ieee80211_get_hdr_info 2008-07-08 14:16:01 -04:00
michael.h mac80211: remove ieee80211_get_hdr_info 2008-07-08 14:16:01 -04:00
mlme.c mac80211: always process blockack action from workqueue 2010-06-14 15:39:26 -04:00
offchannel.c mac80211: Fixed netif_tx_wake_all_queues in IBSS mode 2010-01-15 16:58:28 -05:00
pm.c mac80211: use common work struct 2010-06-14 15:38:17 -04:00
rate.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
rate.h mac80211: add the minstrel_ht rate control algorithm 2010-06-02 16:12:59 -04:00
rc80211_minstrel.c Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2010-04-11 14:53:53 -07:00
rc80211_minstrel.h minstrel: make the rate control ops reusable from another rc implementation 2010-03-10 17:44:23 -05:00
rc80211_minstrel_debugfs.c Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2010-04-11 14:53:53 -07:00
rc80211_minstrel_ht.c mac80211: add the minstrel_ht rate control algorithm 2010-06-02 16:12:59 -04:00
rc80211_minstrel_ht.h mac80211: add the minstrel_ht rate control algorithm 2010-06-02 16:12:59 -04:00
rc80211_minstrel_ht_debugfs.c mac80211: add the minstrel_ht rate control algorithm 2010-06-02 16:12:59 -04:00
rc80211_pid.h mac80211/drivers: rewrite the rate control API 2008-10-31 19:00:23 -04:00
rc80211_pid_algo.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
rc80211_pid_debugfs.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
rx.c mac80211: use RCU for RX aggregation 2010-06-14 15:39:27 -04:00
scan.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2010-05-20 21:04:44 -07:00
spectmgmt.c mac80211: reduce reliance on netdev 2009-12-21 18:38:52 -05:00
sta_info.c mac80211: simplify key locking 2010-06-03 14:10:46 -04:00
sta_info.h mac80211: use RCU for RX aggregation 2010-06-14 15:39:27 -04:00
status.c wireless: fix several minor description typos 2010-06-02 16:13:18 -04:00
tkip.c mac80211: pass vif and station to update_tkip_key 2010-01-22 16:08:55 -05:00
tkip.h mac80211: tkip.c consolidate tkip IV writing in helper 2008-06-14 12:18:13 -04:00
tx.c mac80211: set IEEE80211_TX_CTL_FIRST_FRAGMENT for beacons 2010-05-07 14:55:55 -04:00
util.c mac80211: simplify station/aggregation code 2010-06-14 15:38:16 -04:00
wep.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
wep.h cfg80211: rework key operation 2009-07-24 15:05:09 -04:00
wme.c mac80211: fix-up build breakage in 2.6.33 2010-01-06 15:35:49 -05:00
wme.h mac80211: fix skb buffering issue 2010-01-05 16:21:40 -05:00
work.c wireless: fix several minor description typos 2010-06-02 16:13:18 -04:00
wpa.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
wpa.h mac80211: 802.11w - Add BIP (AES-128-CMAC) 2009-01-29 16:00:02 -05:00