First patch adds an additional parameter to ->enqueue() qdisc method so that drops can be done outside of critical section (after locks are released).
Then fq_codel can have a small optimization to reduce number of cache lines misses during a drop event (possibly accumulating hundreds of packets to be freed). A small htb change exports the backlog in class dumps. Final patch adds bulk dequeue to qdiscs that were lacking this feature. This series brings a nice qdisc performance increase (more than 80 % in some cases). Eric Dumazet (4): net_sched: drop packets after root qdisc lock is released net_sched: fq_codel: cache skb->truesize into skb->cb net_sched: sch_htb: export class backlog in dumps net_sched: generalize bulk dequeue include/net/codel_qdisc.h | 1 + include/net/sch_generic.h | 48 ++++++++++++++++++++--------- net/core/dev.c | 7 +++-- net/sched/sch_atm.c | 9 +++--- net/sched/sch_blackhole.c | 5 +-- net/sched/sch_cbq.c | 7 +++-- net/sched/sch_choke.c | 16 +++++----- net/sched/sch_codel.c | 8 +++-- net/sched/sch_drr.c | 7 +++-- net/sched/sch_dsmark.c | 9 +++--- net/sched/sch_fifo.c | 15 +++++---- net/sched/sch_fq.c | 7 +++-- net/sched/sch_fq_codel.c | 22 +++++++------ net/sched/sch_generic.c | 78 ++++++++++++++++++++++++++++++++++++++--------- net/sched/sch_gred.c | 7 +++-- net/sched/sch_hfsc.c | 6 ++-- net/sched/sch_hhf.c | 10 +++--- net/sched/sch_htb.c | 24 ++++++++++----- net/sched/sch_multiq.c | 7 +++-- net/sched/sch_netem.c | 25 +++++++++------ net/sched/sch_pie.c | 5 +-- net/sched/sch_plug.c | 5 +-- net/sched/sch_prio.c | 4 +-- net/sched/sch_qfq.c | 7 +++-- net/sched/sch_red.c | 7 +++-- net/sched/sch_sfb.c | 7 +++-- net/sched/sch_sfq.c | 8 ++--- net/sched/sch_tbf.c | 16 +++++----- net/sched/sch_teql.c | 4 +-- 29 files changed, 247 insertions(+), 134 deletions(-) -- 2.8.0.rc3.226.g39d4020
