netdev - [PATCH net-next v2 00/11] net: skip taking rtnl

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Message-ID: <20250324224537.248800-1-kuba@kernel.org>
Date: Mon, 24 Mar 2025 15:45:26 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org,
	edumazet@...gle.com,
	pabeni@...hat.com,
	andrew+netdev@...n.ch,
	horms@...nel.org,
	sdf@...ichev.me,
	Jakub Kicinski <kuba@...nel.org>
Subject: [PATCH net-next v2 00/11] net: skip taking rtnl_lock for queue GET

Skip taking rtnl_lock for queue GET ops on devices which opt
into running all ops under the instance lock.

This fixes and completes Stan's ops-locking work, so I think
for sanity / ease of backporting fixes we should merge it for
v6.15.

v2:
 - rebase
 - only clear XSK if netdev still set
v1: https://lore.kernel.org/20250312223507.805719-1-kuba@kernel.org

Jakub Kicinski (11):
  net: bubble up taking netdev instance lock to callers of
    net_devmem_unbind_dmabuf()
  net: remove netif_set_real_num_rx_queues() helper for when SYSFS=n
  net: constify dev pointer in misc instance lock helpers
  net: explain "protection types" for the instance lock
  net: designate queue counts as "double ops protected" by instance lock
  net: designate queue -> napi linking as "ops protected"
  net: protect rxq->mp_params with the instance lock
  net: make NETDEV_UNREGISTER and instance lock more consistent
  net: designate XSK pool pointers in queues as "ops protected"
  netdev: add "ops compat locking" helpers
  netdev: don't hold rtnl_lock over nl queue info get when possible

 include/linux/netdevice.h     | 41 ++++++++++++---------
 include/net/netdev_lock.h     | 36 ++++++++++++++++--
 include/net/netdev_rx_queue.h |  6 +--
 net/core/dev.h                | 15 ++++++++
 net/core/dev.c                | 69 +++++++++++++++++++++++++++++++----
 net/core/devmem.c             |  2 -
 net/core/net-sysfs.c          |  2 +
 net/core/netdev-genl.c        | 27 ++++++++------
 net/core/netdev_rx_queue.c    |  3 ++
 net/core/page_pool.c          |  7 +---
 net/xdp/xsk_buff_pool.c       |  7 +++-
 11 files changed, 165 insertions(+), 50 deletions(-)

-- 
2.49.0