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authorLinus Torvalds <torvalds@linux-foundation.org>2023-08-31 06:05:42 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2023-08-31 06:05:42 +0300
commitcd99b9eb4b702563c5ac7d26b632a628f5a832a5 (patch)
treeff96773806b6bb1efece11d8b7678ae43d71411e /Documentation/mm/vmemmap_dedup.rst
parentf8fd5c24830fbc259ba7d5e72817c9867c01b8e8 (diff)
parentc63594f2d66690805eb78b75e4b8e8dc9f2672bf (diff)
downloadlinux-cd99b9eb4b702563c5ac7d26b632a628f5a832a5.tar.xz
Merge tag 'docs-6.6' of git://git.lwn.net/linux
Pull documentation updates from Jonathan Corbet: "Documentation work keeps chugging along; this includes: - Work from Carlos Bilbao to integrate rustdoc output into the generated HTML documentation. This took some work to figure out how to do it without slowing the docs build and without creating people who don't have Rust installed, but Carlos got there - Move the loongarch and mips architecture documentation under Documentation/arch/ - Some more maintainer documentation from Jakub ... plus the usual assortment of updates, translations, and fixes" * tag 'docs-6.6' of git://git.lwn.net/linux: (56 commits) Docu: genericirq.rst: fix irq-example input: docs: pxrc: remove reference to phoenix-sim Documentation: serial-console: Fix literal block marker docs/mm: remove references to hmm_mirror ops and clean typos docs/zh_CN: correct regi_chg(),regi_add() to region_chg(),region_add() Documentation: Fix typos Documentation/ABI: Fix typos scripts: kernel-doc: fix macro handling in enums scripts: kernel-doc: parse DEFINE_DMA_UNMAP_[ADDR|LEN] Documentation: riscv: Update boot image header since EFI stub is supported Documentation: riscv: Add early boot document Documentation: arm: Add bootargs to the table of added DT parameters docs: kernel-parameters: Refer to the correct bitmap function doc: update params of memhp_default_state= docs: Add book to process/kernel-docs.rst docs: sparse: fix invalid link addresses docs: vfs: clean up after the iterate() removal docs: Add a section on surveys to the researcher guidelines docs: move mips under arch docs: move loongarch under arch ...
Diffstat (limited to 'Documentation/mm/vmemmap_dedup.rst')
-rw-r--r--Documentation/mm/vmemmap_dedup.rst5
1 files changed, 3 insertions, 2 deletions
diff --git a/Documentation/mm/vmemmap_dedup.rst b/Documentation/mm/vmemmap_dedup.rst
index c573e08b5043..59891f72420e 100644
--- a/Documentation/mm/vmemmap_dedup.rst
+++ b/Documentation/mm/vmemmap_dedup.rst
@@ -1,3 +1,4 @@
+
.. SPDX-License-Identifier: GPL-2.0
=========================================
@@ -10,14 +11,14 @@ HugeTLB
This section is to explain how HugeTLB Vmemmap Optimization (HVO) works.
The ``struct page`` structures are used to describe a physical page frame. By
-default, there is a one-to-one mapping from a page frame to it's corresponding
+default, there is a one-to-one mapping from a page frame to its corresponding
``struct page``.
HugeTLB pages consist of multiple base page size pages and is supported by many
architectures. See Documentation/admin-guide/mm/hugetlbpage.rst for more
details. On the x86-64 architecture, HugeTLB pages of size 2MB and 1GB are
currently supported. Since the base page size on x86 is 4KB, a 2MB HugeTLB page
-consists of 512 base pages and a 1GB HugeTLB page consists of 4096 base pages.
+consists of 512 base pages and a 1GB HugeTLB page consists of 262144 base pages.
For each base page, there is a corresponding ``struct page``.
Within the HugeTLB subsystem, only the first 4 ``struct page`` are used to