Re: [patch -mm 11/18] oom: avoid oom killer for lowmem allocations

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> Previously, the heuristic provided some protection for those tasks with
> CAP_SYS_RAWIO, but this is no longer necessary since we will not be
> killing tasks for the purposes of ISA allocations.

Seems incorrect. CAP_SYS_RAWIO tasks usually both use GFP_KERNEL and GFP_DMA.
Even if last allocation is GFP_KERNEL, it doesn't provide any gurantee the
process doesn't have any in flight I/O.

Then, we can't remove for RAWIO protection from oom heuristics. but the code
itself seems ok though.



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