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These pernet_operations unregister ipvlan net hooks. nf_unregister_net_hooks() removes hooks one-by-one, and then frees the memory via rcu. This looks similar to that happens, when a new hooks is added: allocation of bigger memory region, copy of old content, and rcu freeing the old memory. So, all of net code should be well with this behavior. Also at the time of hook unregistering, there are no packets, and foreign net pernet_operations are not interested in others hooks. So, we mark them as async. Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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| fs | ||
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| kernel | ||
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| README | ||
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.