This series amis to add hugetlb_free_vmemmap sysctl to enable the feature
of freeing vmemmap pages of HugeTLB pages.
v2:
- Fix compilation when !CONFIG_MHP_MEMMAP_ON_MEMORY reported by kernel
test robot <lkp@xxxxxxxxx>.
- Move sysctl code from kernel/sysctl.c to mm/hugetlb_vmemmap.c.
Muchun Song (3):
mm: hugetlb: disable freeing vmemmap pages when struct page crosses
page boundaries
sysctl: allow to set extra1 to SYSCTL_ONE
mm: hugetlb: add hugetlb_free_vmemmap sysctl
Documentation/admin-guide/sysctl/vm.rst | 13 ++++++++++
include/linux/memory_hotplug.h | 9 +++++++
kernel/sysctl.c | 2 +-
mm/hugetlb_vmemmap.c | 43 ++++++++++++++++++++++++++++++++-
mm/hugetlb_vmemmap.h | 4 ++-
mm/memory_hotplug.c | 5 ++++
6 files changed, 73 insertions(+), 3 deletions(-)
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2.11.0
