From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id F3A75C5519F for ; Thu, 12 Nov 2020 22:38:25 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 68B6822227 for ; Thu, 12 Nov 2020 22:38:25 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=nvidia.com header.i=@nvidia.com header.b="sJLOFtB3" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 68B6822227 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=nvidia.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id BA5776B0068; Thu, 12 Nov 2020 17:38:24 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id B55586B006C; Thu, 12 Nov 2020 17:38:24 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id A1C746B0070; Thu, 12 Nov 2020 17:38:24 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0160.hostedemail.com [216.40.44.160]) by kanga.kvack.org (Postfix) with ESMTP id 73CED6B0068 for ; Thu, 12 Nov 2020 17:38:24 -0500 (EST) Received: from smtpin17.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id 181663624 for ; Thu, 12 Nov 2020 22:38:24 +0000 (UTC) X-FDA: 77477231328.17.size89_2a007742730a Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin17.hostedemail.com (Postfix) with ESMTP id EB347180D0181 for ; Thu, 12 Nov 2020 22:38:23 +0000 (UTC) X-HE-Tag: size89_2a007742730a X-Filterd-Recvd-Size: 4852 Received: from hqnvemgate25.nvidia.com (hqnvemgate25.nvidia.com [216.228.121.64]) by imf08.hostedemail.com (Postfix) with ESMTP for ; Thu, 12 Nov 2020 22:38:23 +0000 (UTC) Received: from hqmail.nvidia.com (Not Verified[216.228.121.13]) by hqnvemgate25.nvidia.com (using TLS: TLSv1.2, AES256-SHA) id ; Thu, 12 Nov 2020 14:38:16 -0800 Received: from [10.2.174.128] (10.124.1.5) by HQMAIL107.nvidia.com (172.20.187.13) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Thu, 12 Nov 2020 22:38:19 +0000 From: Zi Yan To: Ralph Campbell CC: , Matthew Wilcox , "Kirill A . Shutemov" , Roman Gushchin , Andrew Morton , , , Yang Shi , "Michal Hocko" , John Hubbard , David Nellans Subject: Re: [RFC PATCH 1/6] mm: huge_memory: add new debugfs interface to trigger split huge page on any page range. Date: Thu, 12 Nov 2020 17:38:17 -0500 X-Mailer: MailMate (1.13.2r5673) Message-ID: <86C79569-B59D-43AD-84B3-AEE10E46EC9C@nvidia.com> In-Reply-To: <69294b6a-ecfb-fac0-2725-9ac0b73f43aa@nvidia.com> References: <20201111204008.21332-1-zi.yan@sent.com> <20201111204008.21332-2-zi.yan@sent.com> <69294b6a-ecfb-fac0-2725-9ac0b73f43aa@nvidia.com> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="=_MailMate_3BE458C5-624A-4CED-8596-9884495E8578_="; micalg=pgp-sha512; protocol="application/pgp-signature" X-Originating-IP: [10.124.1.5] X-ClientProxiedBy: HQMAIL111.nvidia.com (172.20.187.18) To HQMAIL107.nvidia.com (172.20.187.13) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1605220696; bh=QzjeOfRilOKjXQFWBUpC5Q16xCqmxfRvqWkKvKeIYjk=; h=From:To:CC:Subject:Date:X-Mailer:Message-ID:In-Reply-To: References:MIME-Version:Content-Type:X-Originating-IP: X-ClientProxiedBy; b=sJLOFtB3YoIs5OfgNBYzvWPKJj9jhv1KxbzkRkj7Ks9rOqSu3pNcbcGDHbnaSPbCt /Z/C97PcaSzFEcdr27j7SmmTi5sWF4G0+6Zn1+9FB34DkFhGM5tiByuItH3w+ZpTnI RZoYeHcnLUmXuEFlriP8x6mDAF+/x/ggQa6Gbkh2qC1plGWh2u/RSu7LmYEN/w1r72 QaruRXz6frxxZisFBR9DkvVJj00P2s9dD0cTmJmLEdp8EvlhZ+EjlWZa0m88YVJTtj r51D6aFNyUZKTbToV/B/IQxcZEsqWdW4kGoYQzc28zEH7FycI5CTwWfi7VQU/J+MBn JuoftkoiQyE+w== 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: --=_MailMate_3BE458C5-624A-4CED-8596-9884495E8578_= Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On 12 Nov 2020, at 17:22, Ralph Campbell wrote: > On 11/11/20 12:40 PM, Zi Yan wrote: >> From: Zi Yan >> >> Huge pages in the process with the given pid and virtual address range= >> are split. It is used to test split huge page function. In addition, >> a testing program is added to tools/testing/selftests/vm to utilize th= e >> interface by splitting PMD THPs. >> >> Signed-off-by: Zi Yan >> --- >> mm/huge_memory.c | 98 +++++++++++ >> mm/internal.h | 1 + >> mm/migrate.c | 2 +- >> tools/testing/selftests/vm/Makefile | 1 + >> .../selftests/vm/split_huge_page_test.c | 161 ++++++++++++++++= ++ >> 5 files changed, 262 insertions(+), 1 deletion(-) >> create mode 100644 tools/testing/selftests/vm/split_huge_page_test.c= > > Don't forget to update ".gitignore" to include "split_huge_page_test". Sure. Thanks for pointing this out. =E2=80=94 Best Regards, Yan Zi --=_MailMate_3BE458C5-624A-4CED-8596-9884495E8578_= Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQJDBAEBCgAtFiEEh7yFAW3gwjwQ4C9anbJR82th+ooFAl+tuVkPHHppeUBudmlk aWEuY29tAAoJEJ2yUfNrYfqKxpEP/Ay3FS+LFLbShSzAHzgIRVBpl1wqvV10KDAe 0YJvsaTmFrxBJ0jY/RRAqB9DMyb4BsPDsW0/EtT9jkF57Kdlu0onXs/0PCTcSJLn 9X95PVHnJ1GoDjXw3i3Fz9fcGCQjeVrxJElP9AoE5RXm5Qq+Z96tghvIBcQedaTQ uhCPpRdclp1aAL6sp5QW1Et1m2UUIvervgs9fcD+kDSzkETdTbLoSXKHUUNicJR2 g2KcOiAp+JBqirQx1kYHWgUyfG/DGgCse6iaaNmm6KsZJwLpiZ1anD4El0nwNx8m Wa0K2P1kwb5JlioX6LLzOoP+WESV9VD2fPoq11+mJSXjrfrvsp4xgHPR2k3YIamc w0lnfIABNZCoX8goe7KOqNkzXlUx5IVVLEM62a8qlRpIiTCuG662uWmg941fiC0z WKxi8jHWABRx7N9rszqQI0BIBMyIeeoWxX0W4Z1tO2DVlB4YxWnvTSR2M8ybCsyw T5P/3Y5ctv0cwbEyuT1Epwdf+VdfN3VlAcD/2ZBXYnMm1PZ3Um4mVjLplb5VDI0p 3CIuKGleI6+c75NjipshN5+n7dPWtz228bOqFlq7CGRylJweXU3ZXK0+0x59Zsde AS/VnOKhIVfhuKHOShA1IgKvQ+Y+sMLuFBE/NjRGSwrF2kHRFlxME2w4l64tx1yY 857MrlYR =hkYN -----END PGP SIGNATURE----- --=_MailMate_3BE458C5-624A-4CED-8596-9884495E8578_=--