| Date | Thu, 29 Jan 2015 15:12:54 -0800 | From | Andrew Morton <> | Subject | Re: [PATCH v10 13/17] mm: vmalloc: add flag preventing guard hole allocation |
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On Thu, 29 Jan 2015 18:11:57 +0300 Andrey Ryabinin <a.ryabinin@samsung.com> wrote:
> For instrumenting global variables KASan will shadow memory > backing memory for modules. So on module loading we will need > to allocate shadow memory and map it at exact virtual address.
I don't understand. What does "map it at exact virtual address" mean?
> __vmalloc_node_range() seems like the best fit for that purpose, > except it puts a guard hole after allocated area.
Why is the guard hole a problem?
More details needed in this changelog, please.
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