AuxXxilium/linux_dsm_epyc7002
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linux_dsm_epyc7002/net/sched
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Eric Dumazet 2818fa0fa0 pkt_sched: fq: do not hold qdisc lock while allocating memory 
Resizing fq hash table allocates memory while holding qdisc spinlock,
with BH disabled.

This is definitely not good, as allocation might sleep.

We can drop the lock and get it when needed, we hold RTNL so no other
changes can happen at the same time.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Fixes: afe4fd0624 ("pkt_sched: fq: Fair Queue packet scheduler")
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-10 16:17:52 -04:00
..
act_api.c net_sched: act: export tcf_hash_search() instead of tcf_hash_lookup() 2014-01-21 14:43:16 -08:00
act_csum.c net_sched: act: fetch hinfo from a->ops->hinfo 2014-01-21 14:43:16 -08:00
act_gact.c net_sched: act: fetch hinfo from a->ops->hinfo 2014-01-21 14:43:16 -08:00
act_ipt.c net_sched: act: fetch hinfo from a->ops->hinfo 2014-01-21 14:43:16 -08:00
act_mirred.c net_sched: act: fetch hinfo from a->ops->hinfo 2014-01-21 14:43:16 -08:00
act_nat.c net_sched: act: fetch hinfo from a->ops->hinfo 2014-01-21 14:43:16 -08:00
act_pedit.c net_sched: act: fetch hinfo from a->ops->hinfo 2014-01-21 14:43:16 -08:00
act_police.c net_sched: act: export tcf_hash_search() instead of tcf_hash_lookup() 2014-01-21 14:43:16 -08:00
act_simple.c net_sched: act: fetch hinfo from a->ops->hinfo 2014-01-21 14:43:16 -08:00
act_skbedit.c net_sched: act: fetch hinfo from a->ops->hinfo 2014-01-21 14:43:16 -08:00
cls_api.c net_sched: add struct net pointer to tcf_proto_ops->dump 2014-01-13 11:50:14 -08:00
cls_basic.c net_sched: avoid casting void pointer 2014-01-13 11:50:15 -08:00
cls_bpf.c net_sched: add struct net pointer to tcf_proto_ops->dump 2014-01-13 11:50:14 -08:00
cls_cgroup.c net_sched: add struct net pointer to tcf_proto_ops->dump 2014-01-13 11:50:14 -08:00
cls_flow.c net_sched: add struct net pointer to tcf_proto_ops->dump 2014-01-13 11:50:14 -08:00
cls_fw.c net_sched: fix error return code in fw_change_attrs() 2014-01-16 19:12:03 -08:00
cls_route.c net_sched: avoid casting void pointer 2014-01-13 11:50:15 -08:00
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: add struct net pointer to tcf_proto_ops->dump 2014-01-13 11:50:14 -08:00
cls_tcindex.c net_sched: avoid casting void pointer 2014-01-13 11:50:15 -08:00
cls_u32.c net_sched: avoid casting void pointer 2014-01-13 11:50:15 -08:00
em_canid.c net: em_canid: Ematch rule to match CAN frames according to their identifiers 2012-07-04 13:07:05 +02:00
em_cmp.c net_sched: cleanups 2011-01-19 23:31:12 -08:00
em_ipset.c em_ipset: use dev_net() accessor 2013-10-18 16:23:06 -04:00
em_meta.c net: Change skb_get_rxhash to skb_get_hash 2013-12-17 16:36:21 -05:00
em_nbyte.c net_sched: cleanups 2011-01-19 23:31:12 -08:00
em_text.c net_sched: cleanups 2011-01-19 23:31:12 -08:00
em_u32.c net_sched: cleanups 2011-01-19 23:31:12 -08:00
ematch.c net: Convert net_ratelimit uses to net_<level>_ratelimited 2012-05-15 13:45:03 -04:00
Kconfig net: pkt_sched: PIE AQM scheme 2014-01-06 15:13:01 -05:00
Makefile net: pkt_sched: PIE AQM scheme 2014-01-06 15:13:01 -05:00
sch_api.c pkt_sched: move the sanity test in qdisc_list_add() 2014-03-10 15:44:21 -04:00
sch_atm.c net_sched: info leak in atm_tc_dump_class() 2013-07-31 15:04:19 -07:00
sch_blackhole.c pkt_sched: Add qdisc->ops->peek() implementation. 2008-10-31 00:45:55 -07:00
sch_cbq.c net_sched: replace pr_warning with pr_warn 2013-12-31 13:50:56 -05:00
sch_choke.c random32: add prandom_u32_max and convert open coded users 2014-01-21 23:17:20 -08:00
sch_codel.c fq_codel: should use qdisc backlog as threshold 2012-05-16 15:30:26 -04:00
sch_drr.c net_sched: add 64bit rate estimators 2013-06-11 02:51:03 -07:00
sch_dsmark.c sch_dsmark: use correct func name in print messages 2013-12-31 13:50:57 -05:00
sch_fifo.c pkt_sched: Stop using NLA_PUT*(). 2012-04-01 18:11:37 -04:00
sch_fq_codel.c net: replace macros net_random and net_srandom with direct calls to prandom 2014-01-14 15:15:25 -08:00
sch_fq.c pkt_sched: fq: do not hold qdisc lock while allocating memory 2014-03-10 16:17:52 -04:00
sch_generic.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-01-14 14:42:42 -08:00
sch_gred.c net_sched: replace pr_warning with pr_warn 2013-12-31 13:50:56 -05:00
sch_hfsc.c net_sched: add 64bit rate estimators 2013-06-11 02:51:03 -07:00
sch_hhf.c net: replace macros net_random and net_srandom with direct calls to prandom 2014-01-14 15:15:25 -08:00
sch_htb.c sch_htb: let skb->priority refer to non-leaf class 2014-01-22 17:39:48 -08:00
sch_ingress.c net_sched: factorize qdisc stats handling 2011-01-10 16:07:54 -08:00
sch_mq.c pkt_sched: give visibility to mq slave qdiscs 2013-12-09 19:54:47 -05:00
sch_mqprio.c pkt_sched: give visibility to mq slave qdiscs 2013-12-09 19:54:47 -05:00
sch_multiq.c net/*: Fix FSF address in file headers 2013-12-06 12:37:57 -05:00
sch_netem.c reciprocal_divide: update/correction of the algorithm 2014-01-21 23:17:20 -08:00
sch_pie.c net: sched: Cleanup PIE comments 2014-02-13 18:29:58 -05:00
sch_plug.c net_sched: sch_plug: plug_qdisc_ops is static 2012-02-13 16:04:40 -05:00
sch_prio.c pkt_sched: Stop using NLA_PUT*(). 2012-04-01 18:11:37 -04:00
sch_qfq.c pkt_sched: sch_qfq: remove a source of high packet delay/jitter 2013-07-18 13:02:00 -07:00
sch_red.c pkt_sched: Stop using NLA_PUT*(). 2012-04-01 18:11:37 -04:00
sch_sfb.c net: replace macros net_random and net_srandom with direct calls to prandom 2014-01-14 15:15:25 -08:00
sch_sfq.c net: replace macros net_random and net_srandom with direct calls to prandom 2014-01-14 15:15:25 -08:00
sch_tbf.c sch_tbf: Fix potential memory leak in tbf_change(). 2014-02-27 12:53:50 -05:00
sch_teql.c sch_teql: Convert over to dev_neigh_lookup_skb(). 2012-07-05 01:09:06 -07:00