netfilter: netns nf_conntrack: final netns tweaks
Add init_net checks to not remove kmem_caches twice and so on. Refactor functions to split code which should be executed only for init_net into one place. ip_ct_attach and ip_ct_destroy assignments remain separate, because they're separate stages in setup and teardown. NOTE: NOTRACK code is in for-every-net part. It will be made per-netns after we decidce how to do it correctly. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
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