WANG Cong 067a7cd06f act_ife: only acquire tcf_lock for existing actions ... Alexey reported that we have GFP_KERNEL allocation when holding the spinlock tcf_lock. Actually we don't have to take that spinlock for all the cases, especially for the new one we just create. To modify the existing actions, we still need this spinlock to make sure the whole update is atomic. For net-next, we can get rid of this spinlock because we already hold the RTNL lock on slow path, and on fast path we can use RCU to protect the metalist. Joint work with Jamal. Reported-by: Alexey Khoroshilov <khoroshilov@ispras.ru> Cc: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2016-06-23 12:02:36 -04:00
..
tc_bpf.h	net_sched: act_bpf: remove spinlock in fast path	2015-08-26 11:01:45 -07:00
tc_connmark.h	act_connmark: Remember the struct net instead of guessing it.	2015-09-18 21:59:31 +02:00
tc_csum.h	net_sched: act: hide struct tcf_common from API	2014-02-12 19:23:32 -05:00
tc_defact.h	net_sched: act: hide struct tcf_common from API	2014-02-12 19:23:32 -05:00
tc_gact.h	net/sched: Macro instead of CONFIG_NET_CLS_ACT ifdef	2016-03-10 16:24:02 -05:00
tc_ife.h	act_ife: only acquire tcf_lock for existing actions	2016-06-23 12:02:36 -04:00
tc_ipt.h	net_sched: act: hide struct tcf_common from API	2014-02-12 19:23:32 -05:00
tc_mirred.h	net_sched: act_mirred: add helper inlines to access tcf_mirred info	2016-05-04 00:24:27 -07:00
tc_nat.h	net_sched: act: hide struct tcf_common from API	2014-02-12 19:23:32 -05:00
tc_pedit.h	net_sched: act: hide struct tcf_common from API	2014-02-12 19:23:32 -05:00
tc_skbedit.h	net/act_skbedit: Utility functions for mark action	2016-03-10 16:24:02 -05:00
tc_vlan.h	tc_vlan: fix type of tcfv_push_vid	2014-11-24 16:12:03 -05:00