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linux-stable/net/sched
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John Fastabend 29b86cdac0 net: sched: remove remaining uses for qdisc_qlen in xmit path 
sch_direct_xmit() uses qdisc_qlen as a return value but all call sites
of the routine only check if it is zero or not. Simplify the logic so
that we don't need to return an actual queue length value.

This introduces a case now where sch_direct_xmit would have returned
a qlen of zero but now it returns true. However in this case all
call sites of sch_direct_xmit will implement a dequeue() and get
a null skb and abort. This trades tracking qlen in the hotpath for
an extra dequeue operation. Overall this seems to be good for
performance.

Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-08 13:32:25 -05:00
..
act_api.c net_sched: remove unused parameter from act cleanup ops 2017-12-05 18:07:58 -05:00
act_bpf.c net_sched: remove unused parameter from act cleanup ops 2017-12-05 18:07:58 -05:00
act_connmark.c Revert "net_sched: hold netns refcnt for each action" 2017-11-09 10:03:09 +09:00
act_csum.c net: accept UFO datagrams from tuntap and packet 2017-11-24 01:37:35 +09:00
act_gact.c Revert "net_sched: hold netns refcnt for each action" 2017-11-09 10:03:09 +09:00
act_ife.c net_sched: remove unused parameter from act cleanup ops 2017-12-05 18:07:58 -05:00
act_ipt.c net_sched: remove unused parameter from act cleanup ops 2017-12-05 18:07:58 -05:00
act_meta_mark.c net sched actions: change IFE modules alias names 2017-10-12 22:13:20 -07:00
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 sched actions: change IFE modules alias names 2017-10-12 22:13:20 -07:00
act_mirred.c act_mirred: get rid of mirred_list_lock spinlock 2017-12-06 14:50:13 -05:00
act_nat.c Revert "net_sched: hold netns refcnt for each action" 2017-11-09 10:03:09 +09:00
act_pedit.c net_sched: remove unused parameter from act cleanup ops 2017-12-05 18:07:58 -05:00
act_police.c Revert "net_sched: hold netns refcnt for each action" 2017-11-09 10:03:09 +09:00
act_sample.c net_sched: remove unused parameter from act cleanup ops 2017-12-05 18:07:58 -05:00
act_simple.c net_sched: remove unused parameter from act cleanup ops 2017-12-05 18:07:58 -05:00
act_skbedit.c Revert "net_sched: hold netns refcnt for each action" 2017-11-09 10:03:09 +09:00
act_skbmod.c net_sched: remove unused parameter from act cleanup ops 2017-12-05 18:07:58 -05:00
act_tunnel_key.c net_sched: remove unused parameter from act cleanup ops 2017-12-05 18:07:58 -05:00
act_vlan.c net_sched: remove unused parameter from act cleanup ops 2017-12-05 18:07:58 -05:00
cls_api.c net_sched: get rid of rcu_barrier() in tcf_block_put_ext() 2017-12-05 14:53:17 -05:00
cls_basic.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-11-10 10:00:18 +09:00
cls_bpf.c cls_bpf: don't decrement net's refcount when offload fails 2017-11-28 15:49:44 -05:00
cls_cgroup.c cls_cgroup: use tcf_exts_get_net() before call_rcu() 2017-11-09 10:03:09 +09:00
cls_flow.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-11-10 10:00:18 +09:00
cls_flower.c flow_dissector: dissect tunnel info outside __skb_flow_dissect() 2017-12-05 12:09:18 -05:00
cls_fw.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-11-10 10:00:18 +09:00
cls_matchall.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-11-10 10:00:18 +09:00
cls_route.c cls_route: use tcf_exts_get_net() before call_rcu() 2017-11-09 10:03:10 +09:00
cls_rsvp.c
cls_rsvp.h cls_rsvp: use tcf_exts_get_net() before call_rcu() 2017-11-09 10:03:10 +09:00
cls_rsvp6.c
cls_tcindex.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-11-10 10:00:18 +09:00
cls_u32.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-11-10 10:00:18 +09:00
em_canid.c
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_meta.c net: convert sock.sk_refcnt from atomic_t to refcount_t 2017-07-01 07:39:08 -07:00
em_nbyte.c
em_text.c
em_u32.c
ematch.c net: sched: ematch: obtain net pointer from blocks 2017-10-16 21:00:40 +01:00
Kconfig net/sched: Introduce Credit Based Shaper (CBS) qdisc 2017-10-27 09:48:02 -07:00
Makefile Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-11-04 09:26:51 +09:00
sch_api.c net: sched: sch_api: rearrange init handling 2017-12-05 15:04:27 -05:00
sch_atm.c net: sched: store Qdisc pointer in struct block 2017-10-16 21:00:40 +01:00
sch_blackhole.c net_sched: drop packets after root qdisc lock is released 2016-06-25 12:19:35 -04:00
sch_cbq.c net: sched: cbq: create block for q->link.block 2017-11-28 16:04:26 -05:00
sch_cbs.c net_sch: cbs: Change TC_SETUP_CBS to TC_SETUP_QDISC_CBS 2017-11-08 12:23:38 +09:00
sch_choke.c treewide: use kv[mz]alloc* rather than opencoded variants 2017-05-08 17:15:13 -07:00
sch_codel.c netlink: pass extended ACK struct to parsing functions 2017-04-13 13:58:22 -04:00
sch_drr.c net: sched: mark expected switch fall-throughs 2017-10-22 02:07:08 +01:00
sch_dsmark.c net: sched: store Qdisc pointer in struct block 2017-10-16 21:00:40 +01:00
sch_fifo.c sched: don't use skb queue helpers 2016-09-19 01:47:18 -04:00
sch_fq.c mm, tree wide: replace __GFP_REPEAT by __GFP_RETRY_MAYFAIL with more useful semantic 2017-07-12 16:26:03 -07:00
sch_fq_codel.c net: sched: mark expected switch fall-throughs 2017-10-22 02:07:08 +01:00
sch_generic.c net: sched: remove remaining uses for qdisc_qlen in xmit path 2017-12-08 13:32:25 -05:00
sch_gred.c netlink: pass extended ACK struct to parsing functions 2017-04-13 13:58:22 -04:00
sch_hfsc.c net: sched: mark expected switch fall-throughs 2017-10-22 02:07:08 +01:00
sch_hhf.c sch_hhf: fix null pointer dereference on init failure 2017-08-30 15:26:11 -07:00
sch_htb.c net: sched: mark expected switch fall-throughs 2017-10-22 02:07:08 +01:00
sch_ingress.c net: core: introduce mini_Qdisc and eliminate usage of tp->q for clsact fastpath 2017-11-03 21:57:24 +09:00
sch_mq.c net/sched: Change behavior of mq select_queue() 2017-10-27 09:41:45 -07:00
sch_mqprio.c net_sch: mqprio: Change TC_SETUP_MQPRIO to TC_SETUP_QDISC_MQPRIO 2017-11-08 12:23:38 +09:00
sch_multiq.c net: sched: mark expected switch fall-throughs 2017-10-22 02:07:08 +01:00
sch_netem.c netem: remove unnecessary 64 bit modulus 2017-11-15 14:14:16 +09:00
sch_pie.c net: sched: Convert timers to use timer_setup() 2017-10-18 12:39:54 +01:00
sch_plug.c net_sched: drop packets after root qdisc lock is released 2016-06-25 12:19:35 -04:00
sch_prio.c net: sched: mark expected switch fall-throughs 2017-10-22 02:07:08 +01:00
sch_qfq.c net: sched: mark expected switch fall-throughs 2017-10-22 02:07:08 +01:00
sch_red.c net/sched/sch_red.c: work around gcc-4.4.4 anon union initializer issue 2017-11-13 10:33:07 +09:00
sch_sfb.c net: sched: mark expected switch fall-throughs 2017-10-22 02:07:08 +01:00
sch_sfq.c sch_sfq: fix null pointer dereference at timer expiration 2017-11-28 15:54:05 -05:00
sch_tbf.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-09-01 17:42:05 -07:00
sch_teql.c net: make ndo_get_stats64 a void function 2017-01-08 17:51:44 -05:00