Re: [PATCH 8/8] prepare to remove /proc/sys/vm/hugepages_treat_as_movable

[Aneesh Kumar K.V]

Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx> writes:

> Now hugepages are definitely movable. So allocating hugepages from
> ZONE_MOVABLE is natural and we have no reason to keep this parameter.
> In order to allow userspace to prepare for the removal, let's leave
> this sysctl handler as noop for a while.

I guess you still need to handle architectures for which pmd_huge is

int pmd_huge(pmd_t pmd)
{
	return 0;
}

embedded powerpc is one. They don't store pte information at the PMD
level. Instead pmd contains a pointer to hugepage directory which
contain huge pte.

-aneesh

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