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When mirred is invoked from the ingress path, and it wants to redirect the processed packet, it can now use the TC_ACT_REINSERT action, filling the tcf_result accordingly, and avoiding a per packet skb_clone(). Overall this gives a ~10% improvement in forwarding performance for the TC S/W data path and TC S/W performances are now comparable to the kernel openvswitch datapath. v1 -> v2: use ACT_MIRRED instead of ACT_REDIRECT v2 -> v3: updated after action rename, fixed typo into the commit message v3 -> v4: updated again after action rename, added more comments to the code (JiriP), skip the optimization if the control action need to touch the tcf_result (Paolo) v4 -> v5: fix sparse warning (kbuild bot) Signed-off-by: Paolo Abeni <pabeni@redhat.com> Acked-by: Jiri Pirko <jiri@mellanox.com> 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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.