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RTM_NEWROUTE looks up dev under RCU (ip_route_output(), ipv6_stub->ipv6_dst_lookup_flow(), netdev_get_by_index()), and each neighbour holds the refcnt of its dev. Also, net->mpls.platform_label is protected by a dedicated per-netns mutex. Now, no MPLS code depends on RTNL. Let's drop RTNL for RTM_NEWROUTE, RTM_DELROUTE, and RTM_GETROUTE. Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com> Reviewed-by: Guillaume Nault <gnault@redhat.com> Link: https://patch.msgid.link/20251029173344.2934622-14-kuniyu@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.