[PATCH V2] mm: hugetlb: Introduce huge_pte_{page,present,young}

Steve Capper steve.capper at linaro.org
Mon Mar 31 05:11:38 EDT 2014


On 28 March 2014 16:28, Gerald Schaefer <gerald.schaefer at de.ibm.com> wrote:
> On Thu, 27 Mar 2014 15:11:30 +0000
> Steve Capper <steve.capper at linaro.org> wrote:
>
>> On Thu, Mar 20, 2014 at 01:17:53PM +0000, Steve Capper wrote:
>> > Introduce huge pte versions of pte_page, pte_present and pte_young.
>> >
>> > This allows ARM (without LPAE) to use alternative pte processing logic
>> > for huge ptes.
>> >
>> > Generic implementations that call the standard pte versions are also
>> > added to asm-generic/hugetlb.h.
>> >
>> > Signed-off-by: Steve Capper <steve.capper at linaro.org>
>> > ---
>> > Changed in V2 - moved from #ifndef,#define macros to entries in
>> > asm-generic/hugetlb.h as it makes more sense to have these with the
>> > other huge_pte_. definitions.
>> >
>> > The only other architecture I can see that does not use
>> > asm-generic/hugetlb.h is s390. This patch includes trivial definitions
>> > for huge_pte_{page,present,young} for s390.
>> >
>> > I've compile-tested this for s390, but don't have one under my desk so
>> > have not been able to test it.
>> > ---
>> >  arch/s390/include/asm/hugetlb.h | 15 +++++++++++++++
>> >  include/asm-generic/hugetlb.h   | 15 +++++++++++++++
>> >  mm/hugetlb.c                    | 22 +++++++++++-----------
>> >  3 files changed, 41 insertions(+), 11 deletions(-)
>> >
>>
>> Hello,
>> I was just wondering if this patch looked reasonable to people?
>
> Looks good, and I also tested it on s390, so for the s390 part:
> Acked-by: Gerald Schaefer <gerald.schaefer at de.ibm.com>
>

Thanks!



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