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linux/net/sched
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Vlad Buslov 061775583e net: sched: flower: introduce reference counting for filters 
Extend flower filters with reference counting in order to remove dependency
on rtnl lock in flower ops and allow to modify filters concurrently.
Reference to flower filter can be taken/released concurrently as soon as it
is marked as 'unlocked' by last patch in this series. Use atomic reference
counter type to make concurrent modifications safe.

Always take reference to flower filter while working with it:
- Modify fl_get() to take reference to filter.
- Implement tp->put() callback as fl_put() function to allow cls API to
release reference taken by fl_get().
- Modify fl_change() to assume that caller holds reference to fold and take
reference to fnew.
- Take reference to filter while using it in fl_walk().

Implement helper functions to get/put filter reference counter.

Signed-off-by: Vlad Buslov <vladbu@mellanox.com>
Reviewed-by: Stefano Brivio <sbrivio@redhat.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-21 14:32:17 -07:00
..
act_api.c net: Change TCA_ACT_* to TCA_ID_* to match that of TCA_ID_POLICE 2019-02-10 09:28:43 -08:00
act_bpf.c net: Change TCA_ACT_* to TCA_ID_* to match that of TCA_ID_POLICE 2019-02-10 09:28:43 -08:00
act_connmark.c net: Change TCA_ACT_* to TCA_ID_* to match that of TCA_ID_POLICE 2019-02-10 09:28:43 -08:00
act_csum.c net: sched: act_csum: Fix csum calc for tagged packets 2019-02-27 21:49:46 -08:00
act_gact.c net: Change TCA_ACT_* to TCA_ID_* to match that of TCA_ID_POLICE 2019-02-10 09:28:43 -08:00
act_ife.c net: Change TCA_ACT_* to TCA_ID_* to match that of TCA_ID_POLICE 2019-02-10 09:28:43 -08:00
act_ipt.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-03-02 12:54:35 -08:00
act_meta_mark.c net: remove duplicate includes 2017-12-13 13:18:46 -05:00
act_meta_skbprio.c net sched actions: change IFE modules alias names 2017-10-12 22:13:20 -07:00
act_meta_skbtcindex.c net: remove duplicate includes 2017-12-13 13:18:46 -05:00
act_mirred.c net: Change TCA_ACT_* to TCA_ID_* to match that of TCA_ID_POLICE 2019-02-10 09:28:43 -08:00
act_nat.c net: Change TCA_ACT_* to TCA_ID_* to match that of TCA_ID_POLICE 2019-02-10 09:28:43 -08:00
act_pedit.c net: Change TCA_ACT_* to TCA_ID_* to match that of TCA_ID_POLICE 2019-02-10 09:28:43 -08:00
act_police.c net: Change TCA_ACT_* to TCA_ID_* to match that of TCA_ID_POLICE 2019-02-10 09:28:43 -08:00
act_sample.c net: Change TCA_ACT_* to TCA_ID_* to match that of TCA_ID_POLICE 2019-02-10 09:28:43 -08:00
act_simple.c net: Change TCA_ACT_* to TCA_ID_* to match that of TCA_ID_POLICE 2019-02-10 09:28:43 -08:00
act_skbedit.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-03-02 12:54:35 -08:00
act_skbmod.c net: Change TCA_ACT_* to TCA_ID_* to match that of TCA_ID_POLICE 2019-02-10 09:28:43 -08:00
act_tunnel_key.c net/sched: act_tunnel_key: Fix double free dst_cache 2019-03-05 12:57:28 -08:00
act_vlan.c net: Change TCA_ACT_* to TCA_ID_* to match that of TCA_ID_POLICE 2019-02-10 09:28:43 -08:00
cls_api.c net_sched: return correct value for *notify* functions 2019-03-13 13:48:27 -07:00
cls_basic.c net_sched: initialize net pointer inside tcf_exts_init() 2019-02-22 15:26:51 -08:00
cls_bpf.c net_sched: initialize net pointer inside tcf_exts_init() 2019-02-22 15:26:51 -08:00
cls_cgroup.c net_sched: initialize net pointer inside tcf_exts_init() 2019-02-22 15:26:51 -08:00
cls_flow.c net_sched: initialize net pointer inside tcf_exts_init() 2019-02-22 15:26:51 -08:00
cls_flower.c net: sched: flower: introduce reference counting for filters 2019-03-21 14:32:17 -07:00
cls_fw.c Revert "net: sched: fw: don't set arg->stop in fw_walk() when empty" 2019-02-27 10:12:19 -08:00
cls_matchall.c net_sched: initialize net pointer inside tcf_exts_init() 2019-02-22 15:26:51 -08:00
cls_route.c net_sched: initialize net pointer inside tcf_exts_init() 2019-02-22 15:26:51 -08:00
cls_rsvp.c
cls_rsvp.h net_sched: initialize net pointer inside tcf_exts_init() 2019-02-22 15:26:51 -08:00
cls_rsvp6.c
cls_tcindex.c net_sched: initialize net pointer inside tcf_exts_init() 2019-02-22 15:26:51 -08:00
cls_u32.c net_sched: initialize net pointer inside tcf_exts_init() 2019-02-22 15:26:51 -08:00
em_canid.c net: sched: remove tcf_proto from ematch calls 2014-10-06 18:02:32 -04:00
em_cmp.c
em_ipset.c netfilter: x_tables: move hook state into xt_action_param structure 2016-11-03 10:56:21 +01:00
em_ipt.c net: sched: add em_ipt ematch for calling xtables matches 2018-02-21 13:15:33 -05:00
em_meta.c net: convert sock.sk_refcnt from atomic_t to refcount_t 2017-07-01 07:39:08 -07:00
em_nbyte.c net: sched: em_nbyte: don't add the data offset twice 2018-01-24 14:52:40 -05:00
em_text.c net: Remove state argument from skb_find_text() 2015-02-22 15:59:54 -05:00
em_u32.c
ematch.c net: sched: ematch: obtain net pointer from blocks 2017-10-16 21:00:40 +01:00
Kconfig tc: Add support for configuring the taprio scheduler 2018-10-04 13:52:23 -07:00
Makefile tc: Add support for configuring the taprio scheduler 2018-10-04 13:52:23 -07:00
sch_api.c net_sched: return correct value for *notify* functions 2019-03-13 13:48:27 -07:00
sch_atm.c net: sched: rename qdisc_destroy() to qdisc_put() 2018-09-25 20:17:35 -07:00
sch_blackhole.c net_sched: blackhole: tell upper qdisc about dropped packets 2018-06-17 08:42:33 +09:00
sch_cake.c sch_cake: Interpret fwmark parameter as a bitmask 2019-03-15 11:57:14 -07:00
sch_cbq.c net: sched: rename qdisc_destroy() to qdisc_put() 2018-09-25 20:17:35 -07:00
sch_cbs.c sched: Avoid dereferencing skb pointer after child enqueue 2019-01-15 20:12:00 -08:00
sch_choke.c net: sched: sch: add extack for change qdisc ops 2017-12-21 12:32:50 -05:00
sch_codel.c net: sched: sch: add extack for change qdisc ops 2017-12-21 12:32:50 -05:00
sch_drr.c sched: Fix detection of empty queues in child qdiscs 2019-01-15 20:12:00 -08:00
sch_dsmark.c sched: Avoid dereferencing skb pointer after child enqueue 2019-01-15 20:12:00 -08:00
sch_etf.c etf: Drop all expired packets 2018-11-16 20:39:34 -08:00
sch_fifo.c net: sched: rename qdisc_destroy() to qdisc_put() 2018-09-25 20:17:35 -07:00
sch_fq.c net_sched: sch_fq: avoid calling ktime_get_ns() if not needed 2018-11-20 09:51:32 -08:00
sch_fq_codel.c net: Add and use skb_mark_not_on_list(). 2018-09-10 10:06:54 -07:00
sch_generic.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-03-04 13:26:15 -08:00
sch_gred.c net: sched: gred: support reporting stats from offloads 2018-11-19 18:53:46 -08:00
sch_hfsc.c sched: Fix detection of empty queues in child qdiscs 2019-01-15 20:12:00 -08:00
sch_hhf.c net: Add and use skb_mark_not_on_list(). 2018-09-10 10:06:54 -07:00
sch_htb.c sched: Avoid dereferencing skb pointer after child enqueue 2019-01-15 20:12:00 -08:00
sch_ingress.c net: sched: allow ingress and clsact qdiscs to share filter blocks 2018-01-17 14:53:57 -05:00
sch_mq.c net: sched: mq: offload a graft notification 2018-11-14 08:51:28 -08:00
sch_mqprio.c net: sched: rename qdisc_destroy() to qdisc_put() 2018-09-25 20:17:35 -07:00
sch_multiq.c net: sched: rename qdisc_destroy() to qdisc_put() 2018-09-25 20:17:35 -07:00
sch_netem.c net: netem: fix skb length BUG_ON in __skb_to_sgvec 2019-02-28 10:31:31 -08:00
sch_pie.c net: sched: pie: avoid slow division in drop probability decay 2019-02-28 10:35:41 -08:00
sch_plug.c net: sched: sch: add extack for change qdisc ops 2017-12-21 12:32:50 -05:00
sch_prio.c sched: Avoid dereferencing skb pointer after child enqueue 2019-01-15 20:12:00 -08:00
sch_qfq.c sched: Fix detection of empty queues in child qdiscs 2019-01-15 20:12:00 -08:00
sch_red.c net: sched: red: notify drivers about RED's limit parameter 2018-11-14 08:51:28 -08:00
sch_sfb.c net: sched: rename qdisc_destroy() to qdisc_put() 2018-09-25 20:17:35 -07:00
sch_sfq.c net: sch: api: add extack support in tcf_block_get 2017-12-21 12:32:51 -05:00
sch_skbprio.c net/sched: add skbprio scheduler 2018-07-24 14:44:00 -07:00
sch_taprio.c tc: Add support for configuring the taprio scheduler 2018-10-04 13:52:23 -07:00
sch_tbf.c sched: Avoid dereferencing skb pointer after child enqueue 2019-01-15 20:12:00 -08:00
sch_teql.c net: sched: sch: add extack for init callback 2017-12-21 12:32:50 -05:00