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* Merge branch 'core-rcu-for-linus' of ↵Linus Torvalds2011-05-1956-833/+1724
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (78 commits) Revert "rcu: Decrease memory-barrier usage based on semi-formal proof" net,rcu: convert call_rcu(prl_entry_destroy_rcu) to kfree batman,rcu: convert call_rcu(softif_neigh_free_rcu) to kfree_rcu batman,rcu: convert call_rcu(neigh_node_free_rcu) to kfree() batman,rcu: convert call_rcu(gw_node_free_rcu) to kfree_rcu net,rcu: convert call_rcu(kfree_tid_tx) to kfree_rcu() net,rcu: convert call_rcu(xt_osf_finger_free_rcu) to kfree_rcu() net/mac80211,rcu: convert call_rcu(work_free_rcu) to kfree_rcu() net,rcu: convert call_rcu(wq_free_rcu) to kfree_rcu() net,rcu: convert call_rcu(phonet_device_rcu_free) to kfree_rcu() perf,rcu: convert call_rcu(swevent_hlist_release_rcu) to kfree_rcu() perf,rcu: convert call_rcu(free_ctx) to kfree_rcu() net,rcu: convert call_rcu(__nf_ct_ext_free_rcu) to kfree_rcu() net,rcu: convert call_rcu(net_generic_release) to kfree_rcu() net,rcu: convert call_rcu(netlbl_unlhsh_free_addr6) to kfree_rcu() net,rcu: convert call_rcu(netlbl_unlhsh_free_addr4) to kfree_rcu() security,rcu: convert call_rcu(sel_netif_free) to kfree_rcu() net,rcu: convert call_rcu(xps_dev_maps_release) to kfree_rcu() net,rcu: convert call_rcu(xps_map_release) to kfree_rcu() net,rcu: convert call_rcu(rps_map_release) to kfree_rcu() ...
| * Revert "rcu: Decrease memory-barrier usage based on semi-formal proof"Paul E. McKenney2011-05-195-73/+102
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit e59fb3120becfb36b22ddb8bd27d065d3cdca499. This reversion was due to (extreme) boot-time slowdowns on SPARC seen by Yinghai Lu and on x86 by Ingo . This is a non-trivial reversion due to intervening commits. Conflicts: Documentation/RCU/trace.txt kernel/rcutree.c Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * net,rcu: convert call_rcu(prl_entry_destroy_rcu) to kfreePaul E. McKenney2011-05-071-6/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The RCU callback prl_entry_destroy_rcu() just calls kfree(), so we can use kfree_rcu() instead of call_rcu(). Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> Cc: "Pekka Savola (ipv6)" <pekkas@netcore.fi> Cc: James Morris <jmorris@namei.org> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: Patrick McHardy <kaber@trash.net> Acked-by: David S. Miller <davem@davemloft.net> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
| * batman,rcu: convert call_rcu(softif_neigh_free_rcu) to kfree_rcuPaul E. McKenney2011-05-071-9/+1
| | | | | | | | | | | | | | | | | | | | | | | | The RCU callback softif_neigh_free_rcu() just calls kfree(), so we can use kfree_rcu() instead of call_rcu(). Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Marek Lindner <lindner_marek@yahoo.de> Cc: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Acked-by: David S. Miller <davem@davemloft.net> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Acked-by: Sven Eckelmann <sven@narfation.org>
| * batman,rcu: convert call_rcu(neigh_node_free_rcu) to kfree()Paul E. McKenney2011-05-071-9/+1
| | | | | | | | | | | | | | | | | | | | | | | | The RCU callback neigh_node_free_rcu() just calls kfree(), so we can use kfree_rcu() instead of call_rcu(). Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Marek Lindner <lindner_marek@yahoo.de> Cc: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Acked-by: David S. Miller <davem@davemloft.net> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Acked-by: Sven Eckelmann <sven@narfation.org>
| * batman,rcu: convert call_rcu(gw_node_free_rcu) to kfree_rcuPaul E. McKenney2011-05-071-9/+1
| | | | | | | | | | | | | | | | | | | | | | | | The RCU callback gw_node_free_rcu() just calls kfree(), so we can use kfree_rcu() instead of call_rcu(). Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Marek Lindner <lindner_marek@yahoo.de> Cc: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Acked-by: David S. Miller <davem@davemloft.net> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Acked-by: Sven Eckelmann <sven@narfation.org>
| * net,rcu: convert call_rcu(kfree_tid_tx) to kfree_rcu()Lai Jiangshan2011-05-071-11/+3
| | | | | | | | | | | | | | | | | | | | | | | | The rcu callback kfree_tid_tx() just calls a kfree(), so we use kfree_rcu() instead of the call_rcu(kfree_tid_tx). Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: "John W. Linville" <linville@tuxdriver.com> Cc: Johannes Berg <johannes@sipsolutions.net> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Acked-by: "David S. Miller" <davem@davemloft.net>
| * net,rcu: convert call_rcu(xt_osf_finger_free_rcu) to kfree_rcu()Lai Jiangshan2011-05-071-9/+2
| | | | | | | | | | | | | | | | | | | | The rcu callback xt_osf_finger_free_rcu() just calls a kfree(), so we use kfree_rcu() instead of the call_rcu(xt_osf_finger_free_rcu). Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
| * net/mac80211,rcu: convert call_rcu(work_free_rcu) to kfree_rcu()Lai Jiangshan2011-05-071-9/+1
| | | | | | | | | | | | | | | | | | | | The rcu callback work_free_rcu() just calls a kfree(), so we use kfree_rcu() instead of the call_rcu(work_free_rcu). Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Acked-by: "John W. Linville" <linville@tuxdriver.com> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
| * net,rcu: convert call_rcu(wq_free_rcu) to kfree_rcu()Lai Jiangshan2011-05-071-10/+1
| | | | | | | | | | | | | | | | | | | | The rcu callback wq_free_rcu() just calls a kfree(), so we use kfree_rcu() instead of the call_rcu(wq_free_rcu). Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
| * net,rcu: convert call_rcu(phonet_device_rcu_free) to kfree_rcu()Lai Jiangshan2011-05-071-9/+1
| | | | | | | | | | | | | | | | | | | | The rcu callback phonet_device_rcu_free() just calls a kfree(), so we use kfree_rcu() instead of the call_rcu(phonet_device_rcu_free). Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
| * perf,rcu: convert call_rcu(swevent_hlist_release_rcu) to kfree_rcu()Lai Jiangshan2011-05-071-9/+1
| | | | | | | | | | | | | | | | | | | | The rcu callback swevent_hlist_release_rcu() just calls a kfree(), so we use kfree_rcu() instead of the call_rcu(swevent_hlist_release_rcu). Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
| * perf,rcu: convert call_rcu(free_ctx) to kfree_rcu()Lai Jiangshan2011-05-071-9/+1
| | | | | | | | | | | | | | | | | | | | The rcu callback free_ctx() just calls a kfree(), so we use kfree_rcu() instead of the call_rcu(free_ctx). Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
| * net,rcu: convert call_rcu(__nf_ct_ext_free_rcu) to kfree_rcu()Lai Jiangshan2011-05-071-7/+1
| | | | | | | | | | | | | | | | | | | | The rcu callback __nf_ct_ext_free_rcu() just calls a kfree(), so we use kfree_rcu() instead of the call_rcu(__nf_ct_ext_free_rcu). Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
| * net,rcu: convert call_rcu(net_generic_release) to kfree_rcu()Lai Jiangshan2011-05-071-9/+1
| | | | | | | | | | | | | | | | | | | | The rcu callback net_generic_release() just calls a kfree(), so we use kfree_rcu() instead of the call_rcu(net_generic_release). Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
| * net,rcu: convert call_rcu(netlbl_unlhsh_free_addr6) to kfree_rcu()Lai Jiangshan2011-05-071-21/+1
| | | | | | | | | | | | | | | | | | | | The rcu callback netlbl_unlhsh_free_addr6() just calls a kfree(), so we use kfree_rcu() instead of the call_rcu(netlbl_unlhsh_free_addr6). Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Acked-by: Paul Moore <paul.moore@hp.com> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
| * net,rcu: convert call_rcu(netlbl_unlhsh_free_addr4) to kfree_rcu()Lai Jiangshan2011-05-071-19/+1
| | | | | | | | | | | | | | | | | | | | | | The rcu callback netlbl_unlhsh_free_addr4() just calls a kfree(), so we use kfree_rcu() instead of the call_rcu(netlbl_unlhsh_free_addr4). Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Acked-by: David S. Miller <davem@davemloft.net> Acked-by: Paul Moore <paul.moore@hp.com> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
| * security,rcu: convert call_rcu(sel_netif_free) to kfree_rcu()Lai Jiangshan2011-05-071-17/+1
| | | | | | | | | | | | | | | | | | | | The rcu callback sel_netif_free() just calls a kfree(), so we use kfree_rcu() instead of the call_rcu(sel_netif_free). Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
| * net,rcu: convert call_rcu(xps_dev_maps_release) to kfree_rcu()Lai Jiangshan2011-05-071-10/+2
| | | | | | | | | | | | | | | | | | | | The rcu callback xps_dev_maps_release() just calls a kfree(), so we use kfree_rcu() instead of the call_rcu(xps_dev_maps_release). Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
| * net,rcu: convert call_rcu(xps_map_release) to kfree_rcu()Lai Jiangshan2011-05-071-9/+2
| | | | | | | | | | | | | | | | | | | | The rcu callback xps_map_release() just calls a kfree(), so we use kfree_rcu() instead of the call_rcu(xps_map_release). Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
| * net,rcu: convert call_rcu(rps_map_release) to kfree_rcu()Lai Jiangshan2011-05-071-9/+2
| | | | | | | | | | | | | | | | | | | | The rcu callback rps_map_release() just calls a kfree(), so we use kfree_rcu() instead of the call_rcu(rps_map_release). Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
| * net,rcu: convert call_rcu(ipv6_mc_socklist_reclaim) to kfree_rcu()Lai Jiangshan2011-05-071-6/+2
| | | | | | | | | | | | | | | | | | | | The rcu callback ipv6_mc_socklist_reclaim() just calls a kfree(), so we use kfree_rcu() instead of the call_rcu(ipv6_mc_socklist_reclaim). Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
| * macvlan,rcu: convert call_rcu(macvlan_port_rcu_free) to kfree_rcu()Lai Jiangshan2011-05-071-9/+1
| | | | | | | | | | | | | | | | | | | | The rcu callback macvlan_port_rcu_free() just calls a kfree(), so we use kfree_rcu() instead of the call_rcu(macvlan_port_rcu_free). Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
| * ixgbe,rcu: convert call_rcu(ring_free_rcu) to kfree_rcu()Lai Jiangshan2011-05-071-6/+1
| | | | | | | | | | | | | | | | | | | | The rcu callback ring_free_rcu() just calls a kfree(), so we use kfree_rcu() instead of the call_rcu(ring_free_rcu). Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
| * net,rcu: convert call_rcu(free_dm_hw_stat) to kfree_rcu()Lai Jiangshan2011-05-071-10/+2
| | | | | | | | | | | | | | | | | | | | | | The rcu callback free_dm_hw_stat() just calls a kfree(), so we use kfree_rcu() instead of the call_rcu(free_dm_hw_stat). Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
| * net,rcu: convert call_rcu(ip_mc_socklist_reclaim) to kfree_rcu()Lai Jiangshan2011-05-071-10/+2
| | | | | | | | | | | | | | | | | | | | The rcu callback ip_mc_socklist_reclaim() just calls a kfree(), so we use kfree_rcu() instead of the call_rcu(ip_mc_socklist_reclaim). Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
| * net,rcu: convert call_rcu(ip_sf_socklist_reclaim) to kfree_rcu()Lai Jiangshan2011-05-071-9/+3
| | | | | | | | | | | | | | | | | | | | The rcu callback ip_sf_socklist_reclaim() just calls a kfree(), so we use kfree_rcu() instead of the call_rcu(ip_sf_socklist_reclaim). Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
| * net,rcu: convert call_rcu(ip_mc_list_reclaim) to kfree_rcu()Lai Jiangshan2011-05-071-7/+1
| | | | | | | | | | | | | | | | | | | | The rcu callback ip_mc_list_reclaim() just calls a kfree(), so we use kfree_rcu() instead of the call_rcu(ip_mc_list_reclaim). Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
| * net,rcu: convert call_rcu(__gen_kill_estimator) to kfree_rcu()Lai Jiangshan2011-05-071-8/+1
| | | | | | | | | | | | | | | | | | | | The rcu callback __gen_kill_estimator() just calls a kfree(), so we use kfree_rcu() instead of the call_rcu(__gen_kill_estimator). Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
| * net,rcu: convert call_rcu(__leaf_info_free_rcu) to kfree_rcu()Lai Jiangshan2011-05-071-6/+1
| | | | | | | | | | | | | | | | | | | | The rcu callback __leaf_info_free_rcu() just calls a kfree(), so we use kfree_rcu() instead of the call_rcu(__leaf_info_free_rcu). Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
| * net,rcu: convert call_rcu(fc_rport_free_rcu) to kfree_rcu()Lai Jiangshan2011-05-071-11/+1
| | | | | | | | | | | | | | | | | | | | The rcu callback fc_rport_free_rcu() just calls a kfree(), so we use kfree_rcu() instead of the call_rcu(fc_rport_free_rcu). Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
| * security,rcu: convert call_rcu(user_update_rcu_disposal) to kfree_rcu()Lai Jiangshan2011-05-071-14/+2
| | | | | | | | | | | | | | | | | | | | The rcu callback user_update_rcu_disposal() just calls a kfree(), so we use kfree_rcu() instead of the call_rcu(user_update_rcu_disposal). Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: David Howells <dhowells@redhat.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
| * net,act_police,rcu: remove rcu_barrier()Lai Jiangshan2011-05-071-1/+0
| | | | | | | | | | | | | | | | | | | | There is no callback of this module maybe queued since we use kfree_rcu(), we can safely remove the rcu_barrier(). Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
| * net,rcu: convert call_rcu(dn_dev_free_ifa_rcu) to kfree_rcu()Lai Jiangshan2011-05-071-6/+1
| | | | | | | | | | | | | | | | | | | | The rcu callback dn_dev_free_ifa_rcu() just calls a kfree(), so we use kfree_rcu() instead of the call_rcu(dn_dev_free_ifa_rcu). Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
| * net,rcu: convert call_rcu(ha_rcu_free) to kfree_rcu()Lai Jiangshan2011-05-071-10/+2
| | | | | | | | | | | | | | | | | | | | The rcu callback ha_rcu_free() just calls a kfree(), so we use kfree_rcu() instead of the call_rcu(ha_rcu_free). Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
| * net,rcu: convert call_rcu(sctp_local_addr_free) to kfree_rcu()Lai Jiangshan2011-05-074-11/+3
| | | | | | | | | | | | | | | | | | | | The rcu callback sctp_local_addr_free() just calls a kfree(), so we use kfree_rcu() instead of the call_rcu(sctp_local_addr_free). Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
| * net,rcu: convert call_rcu(listeners_free_rcu) to kfree_rcu()Lai Jiangshan2011-05-071-7/+1
| | | | | | | | | | | | | | | | | | | | The rcu callback listeners_free_rcu() just calls a kfree(), so we use kfree_rcu() instead of the call_rcu(listeners_free_rcu). Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
| * net,rcu: convert call_rcu(inet6_ifa_finish_destroy_rcu) to kfree_rcu()Lai Jiangshan2011-05-071-7/+1
| | | | | | | | | | | | | | | | | | | | The rcu callback inet6_ifa_finish_destroy_rcu() just calls a kfree(), so we use kfree_rcu() instead of the call_rcu(inet6_ifa_finish_destroy_rcu). Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
| * net,rcu: convert call_rcu(in6_dev_finish_destroy_rcu) to kfree_rcu()Lai Jiangshan2011-05-071-7/+1
| | | | | | | | | | | | | | | | | | | | The rcu callback in6_dev_finish_destroy_rcu() just calls a kfree(), so we use kfree_rcu() instead of the call_rcu(in6_dev_finish_destroy_rcu). Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
| * net,rcu: convert call_rcu(tcf_police_free_rcu) to kfree_rcu()Lai Jiangshan2011-05-071-6/+1
| | | | | | | | | | | | | | | | | | | | | | | | [PATCH 05/17] net,rcu: convert call_rcu(tcf_police_free_rcu) to kfree_rcu() The rcu callback tcf_police_free_rcu() just calls a kfree(), so we use kfree_rcu() instead of the call_rcu(tcf_police_free_rcu). Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
| * net,rcu: convert call_rcu(tcf_common_free_rcu) to kfree_rcu()Lai Jiangshan2011-05-071-6/+1
| | | | | | | | | | | | | | | | | | | | The rcu callback tcf_common_free_rcu() just calls a kfree(), so we use kfree_rcu() instead of the call_rcu(tcf_common_free_rcu). Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
| * cgroup,rcu: convert call_rcu(__free_css_id_cb) to kfree_rcu()Lai Jiangshan2011-05-071-9/+1
| | | | | | | | | | | | | | | | | | | | The rcu callback __free_css_id_cb() just calls a kfree(), so we use kfree_rcu() instead of the call_rcu(__free_css_id_cb). Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Acked-by: Paul Menage <menage@google.com> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
| * cgroup,rcu: convert call_rcu(free_cgroup_rcu) to kfree_rcu()Lai Jiangshan2011-05-071-8/+1
| | | | | | | | | | | | | | | | | | | | The rcu callback free_cgroup_rcu() just calls a kfree(), so we use kfree_rcu() instead of the call_rcu(free_cgroup_rcu). Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Acked-by: Paul Menage <menage@google.com> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
| * cgroup,rcu: convert call_rcu(free_css_set_rcu) to kfree_rcu()Lai Jiangshan2011-05-071-7/+1
| | | | | | | | | | | | | | | | | | | | The rcu callback free_css_set_rcu() just calls a kfree(), so we use kfree_rcu() instead of the call_rcu(free_css_set_rcu). Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Acked-by: Paul Menage <menage@google.com> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
| * rcu: permit rcu_read_unlock() to be called while holding runqueue locksPaul E. McKenney2011-05-073-79/+34
| | | | | | | | | | | | | | | | | | | | | | | | | | Avoid calling into the scheduler while holding core RCU locks. This allows rcu_read_unlock() to be called while holding the runqueue locks, but only as long as there was no chance of the RCU read-side critical section having been preempted. (Otherwise, if RCU priority boosting is enabled, rcu_read_unlock() might call into the scheduler in order to unboost itself, which might allows self-deadlock on the runqueue locks within the scheduler.) Signed-off-by: Paul E. McKenney <paul.mckenney@linaro.org> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
| * rcu: provide rcu_virt_note_context_switch() function.Gleb Natapov2011-05-053-0/+19
| | | | | | | | | | | | | | | | Provide rcu_virt_note_context_switch() for vitalization use to note quiescent state during guest entry. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
| * rcu: get rid of signed overflow in check_cpu_stall()Paul E. McKenney2011-05-051-5/+8
| | | | | | | | | | | | | | Signed integer overflow is undefined by the C standard, so move calculations to unsigned. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
| * rcu: optimize rcutinyEric Dumazet2011-05-051-22/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | rcu_sched_qs() currently calls local_irq_save()/local_irq_restore() up to three times. Remove irq masking from rcu_qsctr_help() / invoke_rcu_kthread() and do it once in rcu_sched_qs() / rcu_bh_qs() This generates smaller code as well. text data bss dec hex filename 2314 156 24 2494 9be kernel/rcutiny.old.o 2250 156 24 2430 97e kernel/rcutiny.new.o Fix an outdated comment for rcu_qsctr_help() Move invoke_rcu_kthread() definition before its use. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
| * rcu: prevent call_rcu() from diving into rcu core if irqs disabledPaul E. McKenney2011-05-051-1/+8
| | | | | | | | | | | | | | | | | | | | | | This commit marks a first step towards making call_rcu() have real-time behavior. If irqs are disabled, don't dive into the RCU core. Later on, this new early exit will wake up the per-CPU kthread, which first must be modified to handle the cases involving callback storms. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
| * rcu: further lower priority in rcu_yield()Paul E. McKenney2011-05-051-0/+1
| | | | | | | | | | | | | | | | | | | | | | Although rcu_yield() dropped from real-time to normal priority, there is always the possibility that the competing tasks have been niced. So nice to 19 in rcu_yield() to help ensure that other tasks have a better chance of running. Signed-off-by: Paul E. McKenney <paul.mckenney@linaro.org> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
generated by cgit v1.1 at 2024-07-19 21:52:23 +0000