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Eric Dumazet says:
====================
rtnetlink: reduce RTNL pressure for dumps
This series restarts the conversion of rtnl dump operations
to RCU protection, instead of requiring RTNL.
In this new attempt (prior one failed in 2011), I chose to
allow a gradual conversion of selected operations.
After this series, "ip -6 addr" and "ip -4 ro" no longer
need to acquire RTNL.
I refrained from changing inet_dump_ifaddr() and inet6_dump_addr()
to avoid merge conflicts because of two fixes in net tree.
I also started the work for "ip link" future conversion.
v2: rtnl_fill_link_ifmap() always emit IFLA_MAP (Jiri Pirko)
Added "nexthop: allow nexthop_mpath_fill_node()
to be called without RTNL" to avoid a lockdep splat (Ido Schimmel)
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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 Restructured Text 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.