From: Muchun Song <songmuchun@bytedance.com>
To: corbet@lwn.net, mike.kravetz@oracle.com,
akpm@linux-foundation.org, mcgrof@kernel.org,
keescook@chromium.org, yzaikin@google.com, osalvador@suse.de,
david@redhat.com, masahiroy@kernel.org
Cc: linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-mm@kvack.org, duanxiongchun@bytedance.com,
smuchun@gmail.com, Muchun Song <songmuchun@bytedance.com>
Subject: [PATCH v6 0/4] add hugetlb_free_vmemmap sysctl
Date: Wed, 30 Mar 2022 23:37:41 +0800 [thread overview]
Message-ID: <20220330153745.20465-1-songmuchun@bytedance.com> (raw)
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.
v6:
- Remove "make syncconfig" from Kbuild.
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 | 15 ++++-
include/linux/memory_hotplug.h | 9 +++
include/linux/mm_types.h | 2 +
include/linux/page-flags.h | 3 +-
kernel/sysctl.c | 2 +-
mm/hugetlb_vmemmap.c | 109 ++++++++++++++++++++++++--------
mm/hugetlb_vmemmap.h | 8 ++-
mm/memory_hotplug.c | 27 ++++++--
mm/struct_page_size.c | 20 ++++++
10 files changed, 171 insertions(+), 38 deletions(-)
create mode 100644 mm/struct_page_size.c
--
2.11.0
next reply other threads:[~2022-03-30 15:38 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-30 15:37 Muchun Song [this message]
2022-03-30 15:37 ` [PATCH v6 1/4] mm: hugetlb_vmemmap: introduce STRUCT_PAGE_SIZE_IS_POWER_OF_2 Muchun Song
2022-03-31 2:28 ` Andrew Morton
2022-03-31 2:52 ` Muchun Song
2022-03-31 2:57 ` Andrew Morton
2022-03-31 12:39 ` kernel test robot
2022-03-31 15:26 ` Muchun Song
2022-03-31 15:26 ` Muchun Song
2022-03-30 15:37 ` [PATCH v6 2/4] mm: memory_hotplug: override memmap_on_memory when hugetlb_free_vmemmap=on Muchun Song
2022-03-30 15:37 ` [PATCH v6 3/4] sysctl: allow to set extra1 to SYSCTL_ONE Muchun Song
2022-03-30 15:37 ` [PATCH v6 4/4] mm: hugetlb_vmemmap: add hugetlb_free_vmemmap sysctl Muchun Song
2022-03-31 2:36 ` Andrew Morton
2022-03-31 3:45 ` Muchun Song
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