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SubjectRe: [RFC] Arch option to touch newly allocated pages
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> caller.  This is actually wrong because in this failure case, it effectively
> changes the semantics of GFP_USER, GFP_KERNEL, and the other blocking GFP_*
> allocations to GFP_ATOMIC. And that's what forced UML to segfault the
> compilations.

GFP_KERNEL will sometimes return NULL.

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