[Zesty][PATCH 0/6] Allow memory-hotplug with 16G hugepages

[Kleber Souza]

On 10/17/17 12:52, Victor Aoqui wrote:
> BugLink: http://bugs.launchpad.net/bugs/1724120
> 
> These patches are required to allow memory-hotplug with 16G hugepages 
> 
> Aneesh Kumar K.V (6):
>   powerpc/mm/hugetlb: Filter out hugepage size not supported by page
>     table layout
>   mm/hugetlb: clean up ARCH_HAS_GIGANTIC_PAGE
>   powerpc/mm/hugetlb: add support for 1G huge pages
>   mm/hugetlb: Allow arch to override and call the weak function
>   powerpc/mm/hugetlb: Add support for reserving gigantic huge pages via
>     kernel command line
>   powerpc/mm/hugetlb: Allow runtime allocation of 16G.
> 
>  arch/arm64/Kconfig                            |   2 +-
>  arch/arm64/include/asm/hugetlb.h              |   4 +
>  arch/powerpc/include/asm/book3s/64/hugetlb.h  |   8 ++
>  arch/powerpc/include/asm/book3s/64/mmu-hash.h |   2 +-
>  arch/powerpc/include/asm/hugetlb.h            |  14 --
>  arch/powerpc/kernel/setup-common.c            |   7 -
>  arch/powerpc/mm/hash_utils_64.c               |   2 +-
>  arch/powerpc/mm/hugetlbpage.c                 | 198 ++++++--------------------
>  arch/powerpc/mm/init_32.c                     |   2 -
>  arch/powerpc/platforms/Kconfig.cputype        |   1 +
>  arch/s390/Kconfig                             |   2 +-
>  arch/s390/include/asm/hugetlb.h               |   3 +
>  arch/x86/Kconfig                              |   2 +-
>  arch/x86/include/asm/hugetlb.h                |   4 +
>  include/linux/hugetlb.h                       |   1 +
>  mm/hugetlb.c                                  |  11 +-
>  16 files changed, 72 insertions(+), 191 deletions(-)
> 

Hi,

These patches also touch code that can have an impact on other
architectures. Could you please elaborate on the regression potential of
these patches and if they have been tested with other architectures?
Please add this information also to the Lauchpad bug.


Thank you,
Kleber