Messages in this thread | | | Date | Fri, 2 Dec 2011 13:45:58 +0100 | From | Johannes Weiner <> | Subject | Re: [PATCH] jump_label: jump_label for boot options. |
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On Fri, Dec 02, 2011 at 10:24:10AM +0100, Peter Zijlstra wrote: > On Fri, 2011-12-02 at 09:22 +0900, KAMEZAWA Hiroyuki wrote: > > > > Yes, that's an idea. But we also have another stupid shadow swap accounting > > table. This can be disabled at boot, too. > > Bah I thought it was just the page frame thing, hnaz any plans to kill > this swap array as well?
I haven't looked at the swap accounting at all yet, sorry. But where did this discussion go all of a sudden? :-)
That array is not allocated at all when the memory controller is disabled at boot-time.
Rather, we have those mem_cgroup_disabled() conditionals everytime we enter the memory controller from the VM and the idea is to patch them out during boot, since you can not re-enable the thing anyway.
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