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SubjectRe: [PATCH V3 2/2] mm/mmap: Drop generic protection_map[] array
On Thu, Jun 16, 2022 at 05:45:39AM +0000, Christophe Leroy wrote:
> > +/* Note due to the way vm flags are laid out, the bits are XWR */
> > +pgprot_t protection_map[16] = {
>
> Was const previously, now back to non const ? Maybe due to a conflict
> with linux/mm.h ? At least it should be __ro_after_init.

Maybe we just need to duplicate vm_get_page_prot in all the
architectures and thus avoid making protection_map global in a
common header entirely. That certainly seems like the cleaner
interface.

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