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The code currently assumes that only FIB nodes can hold a reference on routes. Therefore, after fib6_purge_rt() has run and the route is no longer present in any intermediate nodes, it's assumed that its reference count would be 1 - taken by the node where it's currently stored. However, we're going to allow users other than the FIB to take a reference on a route, so this assumption is no longer valid and the BUG_ON() needs to be removed. Note that purging only takes place if the initial reference count is different than 1. I've left that check intact, as in the majority of systems (where routes are only referenced by the FIB), it does actually mean the route is present in intermediate nodes. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> 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.