Messages in this thread | | | From | Muchun Song <> | Subject | [PATCH v5 0/4] add hugetlb_free_vmemmap sysctl | Date | Wed, 23 Mar 2022 20:55:19 +0800 |
| |
This series is based on next-20220310.
This series amis to add hugetlb_free_vmemmap sysctl to enable the feature of freeing vmemmap pages of HugeTLB pages.
v5: - Fix not working properly if one is workig off of a very clean build reported by Luis Chamberlain. - Add Suggested-by for Luis Chamberlain.
Thanks.
v4: - Introduce STRUCT_PAGE_SIZE_IS_POWER_OF_2 inspired by Luis.
v3: - Add pr_warn_once() (Mike). - Handle the transition from enabling to disabling (Luis)
v2: - Fix compilation when !CONFIG_MHP_MEMMAP_ON_MEMORY reported by kernel test robot <lkp@intel.com>. - Move sysctl code from kernel/sysctl.c to mm/hugetlb_vmemmap.c.
Muchun Song (4): mm: hugetlb_vmemmap: introduce STRUCT_PAGE_SIZE_IS_POWER_OF_2 mm: memory_hotplug: override memmap_on_memory when hugetlb_free_vmemmap=on sysctl: allow to set extra1 to SYSCTL_ONE mm: hugetlb_vmemmap: add hugetlb_free_vmemmap sysctl
Documentation/admin-guide/sysctl/vm.rst | 14 +++++ Kbuild | 14 +++++ fs/Kconfig | 1 + include/linux/memory_hotplug.h | 9 +++ include/linux/mm_types.h | 2 + kernel/sysctl.c | 2 +- mm/Kconfig | 3 + mm/hugetlb_vmemmap.c | 107 ++++++++++++++++++++++++-------- mm/hugetlb_vmemmap.h | 4 +- mm/memory_hotplug.c | 27 ++++++-- mm/struct_page_size.c | 19 ++++++ scripts/check_struct_page_po2.sh | 9 +++ 12 files changed, 177 insertions(+), 34 deletions(-) create mode 100644 mm/struct_page_size.c create mode 100755 scripts/check_struct_page_po2.sh
-- 2.11.0
| |