Module namespace can consist of either adding prefixes to existing symbols or modifying the Linux kernel module data structure so that upon request for a symbol it's own namespace can be inspected for its requested namespace. The Linux kernel backports project embraces prefixing backported versions of symbols by prefixing backported versions of symbols with ''backports_''. A macro LINUX_BACKPORT() was added to help with this. For example:

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Andi Kleen introduced the modular structure modification version of [http://thread.gmane.org/gmane.linux.network/78674 module namespaces] back in 2007 but [http://article.gmane.org/gmane.linux.kernel/606885 Rusty Russell nacked these patches]. Because of this we're left with remapping modules to their own namespaces without modifying the in-kernel module structure. It '''may''' be possible to somehow provide module namespaces without requiring modifications to the in-kernel module structure, but such mechanisms would end up being hacks. We need to evaluate if we can figure a clever way to support this that is not so error prone or if we want to respinning Andi's patches with the intent to help support kernel backporting.