redonkable/alistair23-linux
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alistair23-linux/net/sched
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Eric Dumazet fb420d5d91 tcp/fq: move back to CLOCK_MONOTONIC 
In the recent TCP/EDT patch series, I switched TCP and sch_fq
clocks from MONOTONIC to TAI, in order to meet the choice done
earlier for sch_etf packet scheduler.

But sure enough, this broke some setups were the TAI clock
jumps forward (by almost 50 year...), as reported
by Leonard Crestez.

If we want to converge later, we'll probably need to add
an skb field to differentiate the clock bases, or a socket option.

In the meantime, an UDP application will need to use CLOCK_MONOTONIC
base for its SCM_TXTIME timestamps if using fq packet scheduler.

Fixes: 72b0094f91 ("tcp: switch tcp_clock_ns() to CLOCK_TAI base")
Fixes: 142537e419 ("net_sched: sch_fq: switch to CLOCK_TAI")
Fixes: fd2bca2aa7 ("tcp: switch internal pacing timer to CLOCK_TAI")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Leonard Crestez <leonard.crestez@nxp.com>
Tested-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-01 23:18:51 -07:00
..
act_api.c net/sched: Add hardware specific counters to TC actions 2018-09-24 12:18:42 -07:00
act_bpf.c Revert "net: sched: act: add extack for lookup callback" 2018-08-31 22:50:15 -07:00
act_connmark.c net_sched: add missing tcf_lock for act_connmark 2018-08-31 22:57:43 -07:00
act_csum.c Revert "net: sched: act: add extack for lookup callback" 2018-08-31 22:50:15 -07:00
act_gact.c net/sched: Add hardware specific counters to TC actions 2018-09-24 12:18:42 -07:00
act_ife.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-09-04 21:33:03 -07:00
act_ipt.c Revert "net: sched: act: add extack for lookup callback" 2018-08-31 22:50:15 -07:00
act_meta_mark.c
act_meta_skbprio.c
act_meta_skbtcindex.c
act_mirred.c net/sched: Add hardware specific counters to TC actions 2018-09-24 12:18:42 -07:00
act_nat.c net: sched: act_nat: remove dependency on rtnl lock 2018-09-08 10:18:25 -07:00
act_pedit.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-09-04 21:33:03 -07:00
act_police.c net/sched: act_police: don't use spinlock in the data path 2018-09-16 15:30:22 -07:00
act_sample.c Merge ra.kernel.org:/pub/scm/linux/kernel/git/davem/net 2018-09-18 09:33:27 -07:00
act_simple.c Revert "net: sched: act: add extack for lookup callback" 2018-08-31 22:50:15 -07:00
act_skbedit.c net: sched: act_skbedit: remove dependency on rtnl lock 2018-09-08 10:17:35 -07:00
act_skbmod.c Revert "net: sched: act: add extack for lookup callback" 2018-08-31 22:50:15 -07:00
act_tunnel_key.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-09-12 22:22:42 -07:00
act_vlan.c Revert "net: sched: act: add extack for lookup callback" 2018-08-31 22:50:15 -07:00
cls_api.c net_sched: fix a crash in tc_new_tfilter() 2018-10-01 23:09:41 -07:00
cls_basic.c sched: fix trailing whitespace 2018-07-24 14:10:42 -07:00
cls_bpf.c cls_bpf: Use kmemdup instead of duplicating it in cls_bpf_prog_from_ops 2018-07-29 13:19:49 -07:00
cls_cgroup.c net_sched: switch to rcu_work 2018-05-24 22:56:15 -04:00
cls_flow.c net_sched: switch to rcu_work 2018-05-24 22:56:15 -04:00
cls_flower.c net_sched: change tcf_del_walker() to take idrinfo->lock 2018-09-21 08:55:05 -07:00
cls_fw.c net_sched: switch to rcu_work 2018-05-24 22:56:15 -04:00
cls_matchall.c cls_matchall: fix tcf_unbind_filter missing 2018-08-16 12:08:26 -07:00
cls_route.c net_sched: switch to rcu_work 2018-05-24 22:56:15 -04:00
cls_rsvp.c
cls_rsvp.h net_sched: switch to rcu_work 2018-05-24 22:56:15 -04:00
cls_rsvp6.c
cls_tcindex.c net_sched: Fix missing res info when create new tc_index filter 2018-08-13 19:37:42 -07:00
cls_u32.c net: sched: Fix memory exposure from short TCA_U32_SEL 2018-08-26 14:21:50 -07:00
em_canid.c
em_cmp.c
em_ipset.c
em_ipt.c net: sched: add em_ipt ematch for calling xtables matches 2018-02-21 13:15:33 -05:00
em_meta.c
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
em_u32.c
ematch.c
Kconfig net/sched: add skbprio scheduler 2018-07-24 14:44:00 -07:00
Makefile net/sched: add skbprio scheduler 2018-07-24 14:44:00 -07:00
sch_api.c net: sched: extend Qdisc with rcu 2018-09-25 20:17:35 -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 net: Add and use skb_mark_not_on_list(). 2018-09-10 10:06:54 -07:00
sch_cbq.c net: sched: rename qdisc_destroy() to qdisc_put() 2018-09-25 20:17:35 -07:00
sch_cbs.c net: sched: rename qdisc_destroy() to qdisc_put() 2018-09-25 20:17:35 -07:00
sch_choke.c
sch_codel.c
sch_drr.c net: sched: rename qdisc_destroy() to qdisc_put() 2018-09-25 20:17:35 -07:00
sch_dsmark.c net: sched: rename qdisc_destroy() to qdisc_put() 2018-09-25 20:17:35 -07:00
sch_etf.c net/sched: Make etf report drops on error_queue 2018-07-04 22:30:28 +09:00
sch_fifo.c net: sched: rename qdisc_destroy() to qdisc_put() 2018-09-25 20:17:35 -07:00
sch_fq.c tcp/fq: move back to CLOCK_MONOTONIC 2018-10-01 23:18:51 -07:00
sch_fq_codel.c net: Add and use skb_mark_not_on_list(). 2018-09-10 10:06:54 -07:00
sch_generic.c net: sched: make function qdisc_free_cb() static 2018-09-28 11:04:58 -07:00
sch_gred.c
sch_hfsc.c net: sched: rename qdisc_destroy() to qdisc_put() 2018-09-25 20:17:35 -07:00
sch_hhf.c net: Add and use skb_mark_not_on_list(). 2018-09-10 10:06:54 -07:00
sch_htb.c net: sched: rename qdisc_destroy() to qdisc_put() 2018-09-25 20:17:35 -07:00
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: rename qdisc_destroy() to qdisc_put() 2018-09-25 20:17:35 -07:00
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: sched: rename qdisc_destroy() to qdisc_put() 2018-09-25 20:17:35 -07:00
sch_pie.c
sch_plug.c
sch_prio.c net: sched: rename qdisc_destroy() to qdisc_put() 2018-09-25 20:17:35 -07:00
sch_qfq.c net: sched: rename qdisc_destroy() to qdisc_put() 2018-09-25 20:17:35 -07:00
sch_red.c net: sched: rename qdisc_destroy() to qdisc_put() 2018-09-25 20:17:35 -07:00
sch_sfb.c net: sched: rename qdisc_destroy() to qdisc_put() 2018-09-25 20:17:35 -07:00
sch_sfq.c
sch_skbprio.c net/sched: add skbprio scheduler 2018-07-24 14:44:00 -07:00
sch_tbf.c net: sched: rename qdisc_destroy() to qdisc_put() 2018-09-25 20:17:35 -07:00
sch_teql.c