From: Eric Dumazet <edumazet@google.com>
To: "David S . Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
Paolo Abeni <pabeni@redhat.com>
Cc: Simon Horman <horms@kernel.org>,
Kuniyuki Iwashima <kuniyu@google.com>,
David Ahern <dsahern@kernel.org>,
netdev@vger.kernel.org, eric.dumazet@gmail.com,
Eric Dumazet <edumazet@google.com>
Subject: [PATCH v3 net-next 0/3] rtnetlink: RTNL avoidance in rtnl_getlink()
Date: Wed, 20 May 2026 10:32:24 +0000 [thread overview]
Message-ID: <20260520103227.1133277-1-edumazet@google.com> (raw)
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)
Eric Dumazet (3):
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 for RTM_GETLINK with
RTEXT_FILTER_NAME_ONLY
net/core/dev.c | 4 +--
net/core/rtnetlink.c | 86 ++++++++++++++++++++++++++++++--------------
2 files changed, 61 insertions(+), 29 deletions(-)
--
2.54.0.631.ge1b05301d1-goog
next reply other threads:[~2026-05-20 10:32 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-20 10:32 Eric Dumazet [this message]
2026-05-20 10:32 ` [PATCH v3 net-next 1/3] rtnetlink: use nla_nest_end_safe() in rtnl_fill_prop_list() Eric Dumazet
2026-05-20 10:32 ` [PATCH v3 net-next 2/3] net: defer netdev_name_node_alt_flush() call to netdev_run_todo() Eric Dumazet
2026-05-20 10:32 ` [PATCH v3 net-next 3/3] rtnetlink: do not acquire RTNL for RTM_GETLINK with RTEXT_FILTER_NAME_ONLY Eric Dumazet
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