netdev - [PATCH v2 net-next 00/14] net_sched: first series for RTNL-less qdisc dumps

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20240418073248.2952954-1-edumazet@google.com>
Date: Thu, 18 Apr 2024 07:32:34 +0000
From: Eric Dumazet <edumazet@...gle.com>
To: "David S . Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>, 
	Paolo Abeni <pabeni@...hat.com>
Cc: Jamal Hadi Salim <jhs@...atatu.com>, Simon Horman <horms@...nel.org>, 
	"Toke Høiland-Jørgensen" <toke@...hat.com>, Cong Wang <xiyou.wangcong@...il.com>, 
	Jiri Pirko <jiri@...nulli.us>, netdev@...r.kernel.org, eric.dumazet@...il.com, 
	Eric Dumazet <edumazet@...gle.com>
Subject: [PATCH v2 net-next 00/14] net_sched: first series for RTNL-less qdisc dumps

Medium term goal is to implement "tc qdisc show" without needing
to acquire RTNL.

This first series makes the requested changes in 14 qdisc.

Notes :

 - RTNL is still held in "tc qdisc show", more changes are needed.

 - Qdisc returning many attributes might want/need to provide
   a consistent set of attributes. If that is the case, their
   dump() method could acquire the qdisc spinlock, to pair the
   spinlock acquision in their change() method.

V2: Addressed Simon feedback (Thanks a lot Simon)

Eric Dumazet (14):
  net_sched: sch_fq: implement lockless fq_dump()
  net_sched: cake: implement lockless cake_dump()
  net_sched: sch_cbs: implement lockless cbs_dump()
  net_sched: sch_choke: implement lockless choke_dump()
  net_sched: sch_codel: implement lockless codel_dump()
  net_sched: sch_tfs: implement lockless etf_dump()
  net_sched: sch_ets: implement lockless ets_dump()
  net_sched: sch_fifo: implement lockless __fifo_dump()
  net_sched: sch_fq_codel: implement lockless fq_codel_dump()
  net_sched: sch_fq_pie: implement lockless fq_pie_dump()
  net_sched: sch_hfsc: implement lockless accesses to q->defcls
  net_sched: sch_hhf: implement lockless hhf_dump()
  net_sched: sch_pie: implement lockless pie_dump()
  net_sched: sch_skbprio: implement lockless skbprio_dump()

 include/net/red.h        |  12 ++---
 net/sched/sch_cake.c     | 110 ++++++++++++++++++++++-----------------
 net/sched/sch_cbs.c      |  20 +++----
 net/sched/sch_choke.c    |  21 ++++----
 net/sched/sch_codel.c    |  29 +++++++----
 net/sched/sch_etf.c      |  10 ++--
 net/sched/sch_ets.c      |  25 +++++----
 net/sched/sch_fifo.c     |  13 ++---
 net/sched/sch_fq.c       | 108 ++++++++++++++++++++++++--------------
 net/sched/sch_fq_codel.c |  57 ++++++++++++--------
 net/sched/sch_fq_pie.c   |  61 ++++++++++++----------
 net/sched/sch_hfsc.c     |   9 ++--
 net/sched/sch_hhf.c      |  35 ++++++++-----
 net/sched/sch_pie.c      |  39 +++++++-------
 net/sched/sch_skbprio.c  |   8 +--
 15 files changed, 323 insertions(+), 234 deletions(-)

-- 
2.44.0.683.g7961c838ac-goog