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Register netdevice notifier for every iptable entry is not good, since this breaks modularity, and the hidden synchronization is based on rtnl_lock(). This patch reworks the synchronization via new lock, while the rest of logic remains as it was before. This is required for the next patch. Tested via: while :; do unshare -n iptables -t mangle -A OUTPUT -j TEE --gateway 1.1.1.2 --oif lo; done Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com> Acked-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. 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.