Re: [PATCH 3/3 v3] mm/vmalloc: Cache the vmalloc memory info

From: Linus Torvalds
Date: Tue Aug 25 2015 - 12:39:55 EST

On Sun, Aug 23, 2015 at 2:56 PM, Rasmus Villemoes
<linux@xxxxxxxxxxxxxxxxxx> wrote:
> [Maybe one could just remove the fields and see if anybody actually
> notices/cares any longer. Or, if they are only used by kernel
> developers, put them in their own file.]

I'm actually inclined to try exactly that for 4.3, and then take
Ingo's patch as a fallback in case somebody actually notices.

I'm not convinced anybody actually uses those values, and they are
getting *less* relevant rather than more (on 64-bit, those values
really don't matter, since the vmalloc space isn't really a
limitation), so let's try removing them and seeing what happens. And
then we know what we can do if somebody does actually notice.

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