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028b3d8d54
[ Upstream commit26a302afbe] flow_offload_alloc() calls nf_route() to get a dst_entry. Internally, nf_route() calls ip_route_output_key() that allocates a dst_entry and holds it. So, a dst_entry should be released by dst_release() if nf_route() is successful. Otherwise, netns exit routine cannot be finished and the following message is printed: [ 257.490952] unregister_netdevice: waiting for lo to become free. Usage count = 1 Fixes:ac2a66665e("netfilter: add generic flow table infrastructure") Signed-off-by: Taehee Yoo <ap420073@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Sasha Levin <sashal@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 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.