netdev - [PATCH v2 net-next 00/14] net: Convert ->exit_batch_rtnl() to ->exit

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: <20250411205258.63164-1-kuniyu@amazon.com>
Date: Fri, 11 Apr 2025 13:52:29 -0700
From: Kuniyuki Iwashima <kuniyu@...zon.com>
To: "David S. Miller" <davem@...emloft.net>, Eric Dumazet
	<edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni
	<pabeni@...hat.com>
CC: Simon Horman <horms@...nel.org>, Kuniyuki Iwashima <kuniyu@...zon.com>,
	Kuniyuki Iwashima <kuni1840@...il.com>, <netdev@...r.kernel.org>
Subject: [PATCH v2 net-next 00/14] net: Convert ->exit_batch_rtnl() to ->exit_rtnl().

While converting nexthop to per-netns RTNL, there are two blockers
to using rtnl_net_dereference(), flush_all_nexthops() and
__unregister_nexthop_notifier(), both of which are called from
->exit_batch_rtnl().

Instead of spreading __rtnl_net_lock() over each ->exit_batch_rtnl(),
we should convert all ->exit_batch_rtnl() to per-net ->exit_rtnl() and
run it under __rtnl_net_lock() because all ->exit_batch_rtnl() functions
do not have anything to factor out for batching.

Patch 1 & 2 factorise the undo mechanism against ->init() into a single
function, and Patch 3 adds ->exit_batch_rtnl().

Patch 4 ~ 13 convert all ->exit_batch_rtnl() users.

Patch 14 removes ->exit_batch_rtnl().

Later, we can convert pfcp and ppp to use ->exit_rtnl().


v2:
  * Collect tags
  * Patch2
    * Convert free_exit_list() under CONFIG_NET_NS=n

v1: https://lore.kernel.org/all/20250410022004.8668-1-kuniyu@amazon.com/


Kuniyuki Iwashima (14):
  net: Factorise setup_net() and cleanup_net().
  net: Add ops_undo_single for module load/unload.
  net: Add ->exit_rtnl() hook to struct pernet_operations.
  nexthop: Convert nexthop_net_exit_batch_rtnl() to ->exit_rtnl().
  vxlan: Convert vxlan_exit_batch_rtnl() to ->exit_rtnl().
  ipv4: ip_tunnel: Convert ip_tunnel_delete_nets() callers to
    ->exit_rtnl().
  ipv6: Convert tunnel devices' ->exit_batch_rtnl() to ->exit_rtnl().
  xfrm: Convert xfrmi_exit_batch_rtnl() to ->exit_rtnl().
  bridge: Convert br_net_exit_batch_rtnl() to ->exit_rtnl().
  bonding: Convert bond_net_exit_batch_rtnl() to ->exit_rtnl().
  gtp: Convert gtp_net_exit_batch_rtnl() to ->exit_rtnl().
  bareudp: Convert bareudp_exit_batch_rtnl() to ->exit_rtnl().
  geneve: Convert geneve_exit_batch_rtnl() to ->exit_rtnl().
  net: Remove ->exit_batch_rtnl().

 drivers/net/bareudp.c           |  16 +--
 drivers/net/bonding/bond_main.c |  23 ++--
 drivers/net/geneve.c            |  16 +--
 drivers/net/gtp.c               |  18 ++--
 drivers/net/vxlan/vxlan_core.c  |  18 ++--
 include/net/ip_tunnels.h        |   7 +-
 include/net/net_namespace.h     |   4 +-
 net/bridge/br.c                 |  17 ++-
 net/core/net_namespace.c        | 181 +++++++++++++++++---------------
 net/ipv4/ip_gre.c               |  27 +++--
 net/ipv4/ip_tunnel.c            |  25 ++---
 net/ipv4/ip_vti.c               |   9 +-
 net/ipv4/ipip.c                 |   9 +-
 net/ipv4/nexthop.c              |  13 +--
 net/ipv6/ip6_gre.c              |  22 ++--
 net/ipv6/ip6_tunnel.c           |  24 ++---
 net/ipv6/ip6_vti.c              |  27 ++---
 net/ipv6/sit.c                  |  23 ++--
 net/xfrm/xfrm_interface_core.c  |  34 +++---
 19 files changed, 213 insertions(+), 300 deletions(-)

-- 
2.49.0