AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-11-30 23:36:44 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity
12d0ad3be9
linux_dsm_epyc7002/net/sched
History
Michal Soltys 12d0ad3be9 net/sched/sch_hfsc.c: handle corner cases where head may change invalidating calculated deadline 
Realtime scheduling implemented in HFSC uses head of the queue to make
the decision about which packet to schedule next. But in case of any
head drop, the deadline calculated for the previous head is not
necessarily correct for the next head (unless both packets have the same
length).

Thanks to peek() function used during dequeue - which internally is a
dequeue operation - hfsc is almost safe from this issue, as peek()
dequeues and isolates the head storing it temporarily until the real
dequeue happens.

But there is one exception: if after the class activation a drop happens
before the first dequeue operation, there's never a chance to do the
peek().

Adding peek() call in enqueue - if this is the first packet in a new
backlog period AND the scheduler has realtime curve defined - fixes that
one corner case. The 1st hfsc_dequeue() will use that peeked packet,
similarly as every subsequent hfsc_dequeue() call uses packet peeked by
the previous call.

Signed-off-by: Michal Soltys <soltys@ziu.info>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-01 05:03:43 -04:00
..
act_api.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-06-30 05:03:36 -04:00
act_bpf.c net sched: indentation and other OCD stylistic fixes 2016-06-07 15:53:54 -07:00
act_connmark.c net sched actions: aggregate dumping of actions timeinfo 2016-06-07 15:53:43 -07:00
act_csum.c net sched actions: aggregate dumping of actions timeinfo 2016-06-07 15:53:43 -07:00
act_gact.c net sched: indentation and other OCD stylistic fixes 2016-06-07 15:53:54 -07:00
act_ife.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-06-30 05:03:36 -04:00
act_ipt.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-06-30 05:03:36 -04:00
act_meta_mark.c Support to encoding decoding skb mark on IFE action 2016-03-01 17:15:23 -05:00
act_meta_skbprio.c Support to encoding decoding skb prio on IFE action 2016-03-01 17:15:23 -05:00
act_mirred.c net_sched: make tcf_hash_check() boolean 2016-06-15 12:43:35 -07:00
act_nat.c net sched actions: aggregate dumping of actions timeinfo 2016-06-07 15:53:43 -07:00
act_pedit.c net sched actions: aggregate dumping of actions timeinfo 2016-06-07 15:53:43 -07:00
act_police.c act_police: rename tcf_act_police_locate() to tcf_act_police_init() 2016-06-15 00:05:57 -07:00
act_simple.c net_sched: make tcf_hash_check() boolean 2016-06-15 12:43:35 -07:00
act_skbedit.c net_sched: make tcf_hash_check() boolean 2016-06-15 12:43:35 -07:00
act_vlan.c net_sched: make tcf_hash_check() boolean 2016-06-15 12:43:35 -07:00
cls_api.c net, cls: also reject deleting all filters when TCA_KIND present 2016-06-16 22:50:16 -07:00
cls_basic.c net_sched: destroy proto tp when all filters are gone 2015-03-09 15:35:55 -04:00
cls_bpf.c bpf: wire in data and data_end for cls_act_bpf 2016-05-06 16:01:54 -04:00
cls_cgroup.c cls_cgroup: factor out classid retrieval 2015-07-20 12:41:30 -07:00
cls_flow.c sched: cls_flow: use skb_to_full_sk() helper 2015-11-08 20:56:39 -05:00
cls_flower.c net/sched: flower: Return error when hw can't offload and skip_sw is set 2016-06-14 22:37:26 -07:00
cls_fw.c net: revert "net_sched: move tp->root allocation into fw_init()" 2015-09-24 14:33:30 -07:00
cls_route.c net_sched: destroy proto tp when all filters are gone 2015-03-09 15:35:55 -04:00
cls_rsvp6.c [NET_SCHED]: Remove unnecessary includes 2007-07-10 22:16:41 -07:00
cls_rsvp.c [NET_SCHED]: Remove unnecessary includes 2007-07-10 22:16:41 -07:00
cls_rsvp.h net_sched: convert rsvp to call tcf_exts_destroy from rcu callback 2015-08-26 11:01:45 -07:00
cls_tcindex.c net_sched: convert tcindex to call tcf_exts_destroy from rcu callback 2015-08-26 11:01:44 -07:00
cls_u32.c net: cls_u32: be more strict about skip-sw flag for knodes 2016-06-08 21:43:14 -07:00
em_canid.c net: sched: remove tcf_proto from ematch calls 2014-10-06 18:02:32 -04:00
em_cmp.c net_sched: cleanups 2011-01-19 23:31:12 -08:00
em_ipset.c netfilter: x_tables: Pass struct net in xt_action_param 2015-09-18 21:58:14 +02:00
em_meta.c qdisc: constify meta_type_ops structures 2016-04-14 00:35:30 -04:00
em_nbyte.c net: sched: remove tcf_proto from ematch calls 2014-10-06 18:02:32 -04:00
em_text.c net: Remove state argument from skb_find_text() 2015-02-22 15:59:54 -05:00
em_u32.c net_sched: cleanups 2011-01-19 23:31:12 -08:00
ematch.c ematch: Fix auto-loading of ematch modules. 2015-02-20 15:30:56 -05:00
Kconfig Support to encoding decoding skb prio on IFE action 2016-03-01 17:15:23 -05:00
Makefile Support to encoding decoding skb prio on IFE action 2016-03-01 17:15:23 -05:00
sch_api.c sched: remove NET_XMIT_POLICED 2016-06-12 22:02:11 -04:00
sch_atm.c net_sched: drop packets after root qdisc lock is released 2016-06-25 12:19:35 -04:00
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: drop packets after root qdisc lock is released 2016-06-25 12:19:35 -04:00
sch_choke.c net_sched: drop packets after root qdisc lock is released 2016-06-25 12:19:35 -04:00
sch_codel.c net_sched: drop packets after root qdisc lock is released 2016-06-25 12:19:35 -04:00
sch_drr.c net_sched: drop packets after root qdisc lock is released 2016-06-25 12:19:35 -04:00
sch_dsmark.c net_sched: drop packets after root qdisc lock is released 2016-06-25 12:19:35 -04:00
sch_fifo.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-06-30 05:03:36 -04:00
sch_fq_codel.c net_sched: fq_codel: cache skb->truesize into skb->cb 2016-06-25 12:19:35 -04:00
sch_fq.c net_sched: drop packets after root qdisc lock is released 2016-06-25 12:19:35 -04:00
sch_generic.c net_sched: generalize bulk dequeue 2016-06-25 12:19:35 -04:00
sch_gred.c net_sched: drop packets after root qdisc lock is released 2016-06-25 12:19:35 -04:00
sch_hfsc.c net/sched/sch_hfsc.c: handle corner cases where head may change invalidating calculated deadline 2016-07-01 05:03:43 -04:00
sch_hhf.c net_sched: drop packets after root qdisc lock is released 2016-06-25 12:19:35 -04:00
sch_htb.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-06-30 05:03:36 -04:00
sch_ingress.c net: sched: fix tc_should_offload for specific clsact classes 2016-06-07 16:59:53 -07:00
sch_mq.c net: sched: do not acquire qdisc spinlock in qdisc/class stats dump 2016-06-07 16:37:14 -07:00
sch_mqprio.c net: sched: do not acquire qdisc spinlock in qdisc/class stats dump 2016-06-07 16:37:14 -07:00
sch_multiq.c net_sched: drop packets after root qdisc lock is released 2016-06-25 12:19:35 -04:00
sch_netem.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-06-30 05:03:36 -04:00
sch_pie.c net_sched: drop packets after root qdisc lock is released 2016-06-25 12:19:35 -04:00
sch_plug.c net_sched: drop packets after root qdisc lock is released 2016-06-25 12:19:35 -04:00
sch_prio.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-06-30 05:03:36 -04:00
sch_qfq.c net_sched: drop packets after root qdisc lock is released 2016-06-25 12:19:35 -04:00
sch_red.c net_sched: drop packets after root qdisc lock is released 2016-06-25 12:19:35 -04:00
sch_sfb.c net_sched: drop packets after root qdisc lock is released 2016-06-25 12:19:35 -04:00
sch_sfq.c net_sched: drop packets after root qdisc lock is released 2016-06-25 12:19:35 -04:00
sch_tbf.c net_sched: drop packets after root qdisc lock is released 2016-06-25 12:19:35 -04:00
sch_teql.c net_sched: drop packets after root qdisc lock is released 2016-06-25 12:19:35 -04:00