Messages in this thread | | | Date | Tue, 25 Jul 2023 11:09:42 +0200 | Subject | Re: [PATCH] docs: mm: Fix number of base pages for 1GB HugeTLB | From | David Hildenbrand <> |
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On 07.02.23 12:44, Usama Arif wrote: > 1GB HugeTLB page consists of 262144 base pages. > > Signed-off-by: Usama Arif <usama.arif@bytedance.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
Reviewed-by: David Hildenbrand <david@redhat.com>
-- Cheers,
David / dhildenb
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