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bh=UBf0bPbXwpUZnidM+EsPS8ze3lapPTHHHevFzawgO6I=; b=FxSS250KgpLQqaJTZ45R5QcAVnHL9vKwqvAZSgtn8N3D3gL6YCMGJM16wiUFVS76XtLpQW zibbdaHdEkma0ZYs7Kv7YIwB/aykTOfMPnr++Mr55VNlQc3uGwAhIoP5/aqgWe/78alWKw 3hNMAicuMXoobZGo/2hSk9zqTbTFuPU= X-Stat-Signature: mg1pz9yi7zsnbrmeid8rcwyc5mts49ej X-Rspamd-Queue-Id: A8B1D100079 Authentication-Results: imf14.hostedemail.com; dkim=pass header.d=oracle.com header.s=corp-2021-07-09 header.b="rz9IZT/V"; dkim=pass header.d=oracle.onmicrosoft.com header.s=selector2-oracle-onmicrosoft-com header.b=n1P2gOx9; arc=pass ("microsoft.com:s=arcselector9901:i=1"); spf=none (imf14.hostedemail.com: domain of mike.kravetz@oracle.com has no SPF policy when checking 205.220.177.32) smtp.mailfrom=mike.kravetz@oracle.com; dmarc=pass (policy=none) header.from=oracle.com X-Rspamd-Server: rspam07 X-Rspam-User: X-HE-Tag: 1655155294-579844 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Mon, Jun 13, 2022 at 02:35:09PM +0800”, Muchun Song wrote: > It it inconvenient to mention the feature of optimizing vmemmap pages associated > with HugeTLB pages when communicating with others since there is no specific or > abbreviated name for it when it is first introduced. Let us give it a name HVO > (HugeTLB Vmemmap Optimization) from now. > > This commit also updates the document about "hugetlb_free_vmemmap" by the way > discussed in thread [1]. > > Link: https://lore.kernel.org/all/21aae898-d54d-cc4b-a11f-1bb7fddcfffa@redhat.com/ [1] > Signed-off-by: Muchun Song > --- > diff --git a/Documentation/admin-guide/mm/hugetlbpage.rst b/Documentation/admin-guide/mm/hugetlbpage.rst > index a90330d0a837..64e0d5c512e7 100644 > --- a/Documentation/admin-guide/mm/hugetlbpage.rst > +++ b/Documentation/admin-guide/mm/hugetlbpage.rst > @@ -164,8 +164,7 @@ default_hugepagesz > will all result in 256 2M huge pages being allocated. Valid default > huge page size is architecture dependent. > hugetlb_free_vmemmap > - When CONFIG_HUGETLB_PAGE_OPTIMIZE_VMEMMAP is set, this enables optimizing > - unused vmemmap pages associated with each HugeTLB page. > + When CONFIG_HUGETLB_PAGE_OPTIMIZE_VMEMMAP is set, this enables HVO. I think we need to define HVO before using it here. Readers may be able to determine the meaning, but to be sure I would suggest: When CONFIG_HUGETLB_PAGE_OPTIMIZE_VMEMMAP is set this enables HugeTLB Vmemmap Optimization (HVO). Everything else looks good to me. Reviewed-by: Mike Kravetz -- Mike Kravetz