On Wed, Jun 14, 2017 at 5:45 AM, Michal Hocko <[email protected]> wrote:
> On Tue 13-06-17 16:08:26, Dan Williams wrote:
>> Turn the macro into a static inline and rewrite the condition checks for
>> better readability in preparation for adding another condition.
>>
>> Cc: Jan Kara <[email protected]>
>> Cc: Andrew Morton <[email protected]>
>> Reviewed-by: Ross Zwisler <[email protected]>
>> [ross: fix logic to make conversion equivalent]
>> Acked-by: "Kirill A. Shutemov" <[email protected]>
>> Signed-off-by: Dan Williams <[email protected]>
>
> This is really a nice deobfuscation! Please note this will conflict with
> http://lkml.kernel.org/r/[email protected]
>
>
> Trivial to resolve but I thought I should give you a heads up.

Hmm, I'm assuming that vma_is_dax() should override PRCTL_THP_DISABLE?
...and while we're there should vma_is_dax() also override
VM_NOHUGEPAGE? This is with the assumption that the reason to turn off
huge pages is to avoid mm pressure, dax exerts no such pressure.

> Acked-by: Michal Hocko <[email protected]>

Thanks for the heads up.
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