linux-kernel - [PATCH] docs: mm: Fix number of base pages for 1GB HugeTLB

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Message-Id: <20230207114456.2304801-1-usama.arif@bytedance.com>
Date:   Tue,  7 Feb 2023 11:44:56 +0000
From:   Usama Arif <usama.arif@...edance.com>
To:     songmuchun@...edance.com
Cc:     linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        linux-doc@...r.kernel.org, fam.zheng@...edance.com,
        liangma@...ngbit.com, Usama Arif <usama.arif@...edance.com>
Subject: [PATCH] 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@...edance.com>
---
 Documentation/mm/vmemmap_dedup.rst | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

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
-- 
2.25.1