summaryrefslogtreecommitdiff
path: root/Documentation
diff options
context:
space:
mode:
authorUsama Arif <usama.arif@bytedance.com>2023-02-07 14:44:56 +0300
committerJonathan Corbet <corbet@lwn.net>2023-08-18 20:03:52 +0300
commit17b6fc88eb31a10726b702cf07ea998e9828d478 (patch)
tree8f73d9d1ac6137643e29e0eabd812dfbb0cccaa8 /Documentation
parentfe1185941b0f179d338aff90d42e37b538ff3ffb (diff)
downloadlinux-17b6fc88eb31a10726b702cf07ea998e9828d478.tar.xz
docs: mm: Fix number of base pages for 1GB HugeTLB
1GB HugeTLB page consists of 262144 base pages. Signed-off-by: Usama Arif <usama.arif@bytedance.com> Reviewed-by: David Hildenbrand <david@redhat.com> Acked-by: Mike Rapoport (IBM) <rppt@kernel.org> Acked-by: Muchun Song <songmuchun@bytedance.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/20230207114456.2304801-1-usama.arif@bytedance.com
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/mm/vmemmap_dedup.rst3
1 files changed, 2 insertions, 1 deletions
diff --git a/Documentation/mm/vmemmap_dedup.rst b/Documentation/mm/vmemmap_dedup.rst
index a4b12ff906c4..689a6907c70b 100644
--- a/Documentation/mm/vmemmap_dedup.rst
+++ b/Documentation/mm/vmemmap_dedup.rst
@@ -1,3 +1,4 @@
+
.. SPDX-License-Identifier: GPL-2.0
=========================================
@@ -17,7 +18,7 @@ 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