[PATCH 3/3 v5] mm/vmalloc: Cache the vmalloc memory info

[Ingo Molnar]

* Ingo Molnar <mingo@xxxxxxxxxx> wrote:

> One more detail: I just realized that with the read barriers, the READ_ONCE() 
> accesses are not needed anymore - the barriers and the control dependencies are 
> enough.
> 
> This will further simplify the code.

I.e. something like the updated patch below. (We still need the WRITE_ONCE() for 
vmap_info_gen update.)

Thanks,

	Ingo

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