[PATCH v4 net-next 0/5] rtnetlink: RTNL avoidance in rtnl_getlink() and rtnl_dump_ifinfo()

[Eric Dumazet <edumazet@google.com>]

Many shell scripts invoke iproute2 commands specifying a device by
its name.

This series improves their performance avoiding RTNL acquisition
for their (repeated) name->index conversion.

v3: insert patch 2/3 in the series (Jakub reported a KASAN splat)
v4: Addressed Sashiko's feedback.
    added 2 patches for rtnl_dump_ifinfo().

Eric Dumazet (5):
  rtnetlink: use nla_nest_end_safe() in rtnl_fill_prop_list()
  net: defer netdev_name_node_alt_flush() call to netdev_run_todo()
  rtnetlink: do not acquire RTNL in rtnl_getlink() with
    RTEXT_FILTER_NAME_ONLY
  rtnetlink: do not assume RTNL is held in link_master_filtered()
  rtnetlink: add RTEXT_FILTER_NAME_ONLY support to rtnl_dump_ifinfo()

 net/core/dev.c       |   4 +-
 net/core/rtnetlink.c | 131 ++++++++++++++++++++++++++++++-------------
 2 files changed, 95 insertions(+), 40 deletions(-)

-- 
2.54.0.746.g67dd491aae-goog