From nobody Sun Apr 26 12:18:17 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 61A64C43334 for ; Tue, 28 Jun 2022 13:44:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346791AbiF1NoH (ORCPT ); Tue, 28 Jun 2022 09:44:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47922 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346734AbiF1Nnx (ORCPT ); Tue, 28 Jun 2022 09:43:53 -0400 Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E58C91E3DF; Tue, 28 Jun 2022 06:43:47 -0700 (PDT) Received: from dggemv711-chm.china.huawei.com (unknown [172.30.72.53]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4LXQjj5pRbzdZt9; Tue, 28 Jun 2022 21:41:29 +0800 (CST) Received: from kwepemm600013.china.huawei.com (7.193.23.68) by dggemv711-chm.china.huawei.com (10.1.198.66) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Tue, 28 Jun 2022 21:43:45 +0800 Received: from huawei.com (10.175.112.208) by kwepemm600013.china.huawei.com (7.193.23.68) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Tue, 28 Jun 2022 21:43:44 +0800 From: Guo Mengqi To: , , , , , CC: , Subject: [PATCH -next] docs/zh_CN: add vm transhuge translation Date: Tue, 28 Jun 2022 21:37:42 +0800 Message-ID: <20220628133742.91966-1-guomengqi3@huawei.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Originating-IP: [10.175.112.208] X-ClientProxiedBy: dggems704-chm.china.huawei.com (10.3.19.181) To kwepemm600013.china.huawei.com (7.193.23.68) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Translate .../vm/transhuge.rst into Chinese. Signed-off-by: Guo Mengqi --- Documentation/translations/zh_CN/vm/index.rst | 2 +- .../translations/zh_CN/vm/transhuge.rst | 151 ++++++++++++++++++ 2 files changed, 152 insertions(+), 1 deletion(-) create mode 100644 Documentation/translations/zh_CN/vm/transhuge.rst diff --git a/Documentation/translations/zh_CN/vm/index.rst b/Documentation/= translations/zh_CN/vm/index.rst index c77a56553845..2d82b15b272b 100644 --- a/Documentation/translations/zh_CN/vm/index.rst +++ b/Documentation/translations/zh_CN/vm/index.rst @@ -59,11 +59,11 @@ Linux=E5=86=85=E5=AD=98=E7=AE=A1=E7=90=86=E6=96=87=E6= =A1=A3 vmalloced-kernel-stacks z3fold zsmalloc + transhuge =20 TODOLIST: * arch_pgtable_helpers * free_page_reporting * hugetlbfs_reserv * slub -* transhuge * unevictable-lru diff --git a/Documentation/translations/zh_CN/vm/transhuge.rst b/Documentat= ion/translations/zh_CN/vm/transhuge.rst new file mode 100644 index 000000000000..a7bed8b13a47 --- /dev/null +++ b/Documentation/translations/zh_CN/vm/transhuge.rst @@ -0,0 +1,151 @@ +.. SPDX-License-Identifier: GPL-2.0 +.. include:: ../disclaimer-zh_CN.rst + +:Original: Documentation/vm/transhuge.rst + +:=E7=BF=BB=E8=AF=91: + + =E9=83=AD=E6=A2=A6=E7=90=AA Guo Mengqi + +:=E6=A0=A1=E8=AF=91: + +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D +=E9=80=8F=E6=98=8E=E5=A4=A7=E9=A1=B5=E6=9C=BA=E5=88=B6 +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D + +=E6=9C=AC=E6=96=87=E6=A1=A3=E6=8F=8F=E8=BF=B0=E9=80=8F=E6=98=8E=E5=A4=A7= =E9=A1=B5=EF=BC=88THP=EF=BC=89=E7=9A=84=E8=AE=BE=E8=AE=A1=E7=90=86=E5=BF=B5= =EF=BC=8C=E4=BB=A5=E5=8F=8A=E5=AE=83=E6=98=AF=E5=A6=82=E4=BD=95=E4=B8=8E=E5= =86=85=E5=AD=98=E7=AE=A1=E7=90=86=E7=B3=BB=E7=BB=9F=E5=85=B6=E4=BB=96=E9=83= =A8=E5=88=86=E4=BA=A4=E4=BA=92=E7=9A=84=E3=80=82 + +=E8=AE=BE=E8=AE=A1=E5=8E=9F=E5=88=99 +=3D=3D=3D=3D=3D=3D=3D=3D + +- =E2=80=9C=E4=BC=98=E9=9B=85fallback=E2=80=9D=EF=BC=9A=E6=9C=89=E4=BA=9Bm= m=E7=BB=84=E4=BB=B6=E4=B8=8D=E4=BA=86=E8=A7=A3=E9=80=8F=E6=98=8E=E5=A4=A7= 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=E8=BF=94=E5=9B=9E=E5=80=BC=E3=80=82=E8=A6=81=E4=B8=BA=E4=BB=A3=E7=A0=81=E6= =B7=BB=E5=8A=A0=E9=80=8F=E6=98=8E=E5=A4=A7=E9=A1=B5=E6=94=AF=E6=8C=81=E5=BE= =88=E7=AE=80=E5=8D=95=EF=BC=8C=E6=90=9C=E7=B4=A2 +"pmd_offset"=E5=B9=B6=E5=B0=86split_huge_pmd=E6=B7=BB=E5=8A=A0=E5=88=B0=E6= =89=80=E6=9C=89=E8=BF=94=E5=9B=9E=E7=9A=84pmd=E5=90=8E=E9=9D=A2=E3=80=82=E8= =BF=99=E7=9F=AD=E7=9F=AD=E4=B8=80=E8=A1=8C=E7=9A=84fallback=E5=87=BD=E6=95= =B0 +=E5=BE=88=E5=B7=A7=E5=A6=99=EF=BC=8C=E4=B8=BA=E6=88=91=E4=BB=AC=E7=9C=81= =E5=8E=BB=E4=BA=86=E9=A2=9D=E5=A4=96=E7=9A=84=E9=80=82=E9=85=8D=E4=BB=A3=E7= =A0=81=EF=BC=88=E9=80=9A=E5=B8=B8=E4=BC=9A=E5=BE=88=E9=95=BF=E6=88=96=E8=80= =85=E5=BE=88=E5=A4=8D=E6=9D=82=EF=BC=89=E3=80=82 + +=E5=A6=82=E6=9E=9C=E4=BD=A0=E9=9C=80=E8=A6=81=E5=9C=A8=E6=B2=A1=E6=9C=89= =E9=A1=B5=E8=A1=A8=E7=9A=84=E6=83=85=E5=86=B5=E4=B8=8B=E5=A4=84=E7=90=86=E4= =B8=80=E4=B8=AA=E5=A4=A7=E9=A1=B5=EF=BC=8C=E5=8F=AF=E4=BB=A5=E4=BD=BF=E7=94= =A8split_huge_page(page)=E6=8A=8A=E5=AE=83=E6=8B=86=E5=88=86 +=E6=88=90=E5=B0=8F=E9=A1=B5=E3=80=82linux VM=E5=B0=B1=E6=98=AF=E9=80=9A=E8= =BF=87=E8=BF=99=E7=A7=8D=E6=96=B9=E5=BC=8F=E5=B0=86=E5=A4=A7=E9=A1=B5=E6=8D= =A2=E5=87=BA=E3=80=82=E5=A6=82=E6=9E=9C=E9=A1=B5=E9=9D=A2=E8=A2=ABpin=E4=BD= =8F=E4=BA=86=EF=BC=8Csplit_huge_page +=E5=B0=B1=E4=BC=9A=E5=A4=B1=E8=B4=A5=E3=80=82 + +=E4=BE=8B=E5=AD=90=EF=BC=9A=E6=B7=BB=E5=8A=A0=E4=B8=80=E8=A1=8C=E4=BB=A3= =E7=A0=81=E4=BD=BFmremap.c=E6=94=AF=E6=8C=81=E9=80=8F=E6=98=8E=E5=A4=A7=E9= =A1=B5:: + + diff --git a/mm/mremap.c b/mm/mremap.c + --- a/mm/mremap.c + +++ b/mm/mremap.c + @@ -41,6 +41,7 @@ static pmd_t *get_old_pmd(struct mm_stru + return NULL; + + pmd =3D pmd_offset(pud, addr); + + split_huge_pmd(vma, pmd, addr); + if (pmd_none_or_clear_bad(pmd)) + return NULL; + +=E5=A4=A7=E9=A1=B5=E6=94=AF=E6=8C=81=E4=B8=AD=E7=9A=84=E9=94=81=E4=BD=BF= =E7=94=A8 +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D + +=E6=88=91=E4=BB=AC=E5=B8=8C=E6=9C=9B=E5=B0=BD=E5=8F=AF=E8=83=BD=E5=A4=9A= =E7=9A=84=E4=BB=A3=E7=A0=81=E8=83=BD=E5=8E=9F=E7=94=9F=E6=94=AF=E6=8C=81=E9= =80=8F=E6=98=8E=E5=A4=A7=E9=A1=B5=EF=BC=8C=E5=9B=A0=E4=B8=BA=E8=B0=83=E7=94= =A8split_huge_page()=E5=92=8C +split_huge_pmd()=E8=BF=98=E6=98=AF=E6=9C=89=E5=BC=80=E9=94=80=E7=9A=84=E3= =80=82 + +=E8=A6=81=E8=AE=A9=E6=9F=A5=E9=A1=B5=E8=A1=A8=E6=93=8D=E4=BD=9C=E5=8F=98= =E5=BE=97=E8=83=BD=E5=A4=84=E7=90=86huge pmd=EF=BC=8C=E5=8F=AA=E9=9C=80=E5= =AF=B9pmd_offset=E8=BF=94=E5=9B=9E=E7=9A=84pmd=E8=B0=83=E7=94=A8 +pmd_trans_huge()=E3=80=82=E4=B8=80=E5=AE=9A=E8=A6=81=E6=8C=81=E6=9C=89mmap= _lock=E8=AF=BB=E9=94=81=EF=BC=8C=E4=BB=A5=E9=81=BF=E5=85=8Dkhugepaged=E5=9C= =A8=E6=AD=A4=E6=9C=9F=E9=97=B4=E7=94=B3=E8=AF=B7=E6=96=B0=E7=9A=84 +=E5=A4=A7=E9=A1=B5pmd=EF=BC=88khugepaged collapse_huge_page=E4=BC=9A=E6=8C= =81=E6=9C=89mmap_lock=E5=86=99=E9=94=81=E8=80=8C=E9=9D=9Eanon_vma lock=EF= =BC=89=E3=80=82 +=E5=A6=82=E6=9E=9Cpmd_trans_huge=E8=BF=94=E5=9B=9Efalse=EF=BC=8C=E9=82=A3= =E5=B0=B1=E5=9B=9E=E5=88=B0=E5=8E=9F=E6=9D=A5=E7=9A=84=E6=B5=81=E7=A8=8B=E3= =80=82=E5=A6=82=E6=9E=9Cpmd_trans_huge=E8=BF=94=E5=9B=9Etrue=EF=BC=8C +=E5=B0=B1=E9=9C=80=E8=A6=81=E5=85=88=E6=8C=81=E6=9C=89=E9=A1=B5=E8=A1=A8= =E9=94=81(pmd_lock())=EF=BC=8C=E7=84=B6=E5=90=8E=E5=86=8D=E8=B0=83=E4=B8=80= =E6=AC=A1pmd_trans_huge. =E6=8C=81=E9=A1=B5=E8=A1=A8=E9=94=81=E6=98=AF=E4= =B8=BA=E4=BA=86=E9=98=B2=E6=AD=A2 +=E5=A4=A7=E9=A1=B5pmd=E8=A2=AB=E8=BD=AC=E6=8D=A2=E6=88=90=E5=B0=8F=E9=A1= =B5=EF=BC=88split_huge_pmd=E5=8F=AF=E4=BB=A5=E8=B7=9F=E6=9F=A5=E9=A1=B5=E8= =A1=A8=E6=93=8D=E4=BD=9C=E5=90=8C=E6=97=B6=E8=BF=9B=E8=A1=8C=EF=BC=89=E3=80= =82=E5=A6=82=E6=9E=9C=E7=AC=AC=E4=BA=8C=E6=AC=A1 +pmd_trans_huge=E8=BF=94=E5=9B=9Efalse,=E9=82=A3=E5=B0=B1=E9=87=8A=E6=94=BE= =E9=A1=B5=E8=A1=A8=E9=94=81=EF=BC=8C=E4=BE=9D=E7=84=B6=E5=9B=9E=E5=88=B0=E5= =8E=9F=E6=9C=89=E6=B5=81=E7=A8=8B=E3=80=82=E5=A6=82=E6=9E=9C=E8=BF=94=E5=9B= =9Etrue=EF=BC=8C=E5=B0=B1=E5=8F=AF=E4=BB=A5 +=E7=BB=A7=E7=BB=AD=E5=A4=84=E7=90=86huge pmd=E5=92=8Chugepage=E4=BA=86=E3= =80=82=E5=A4=84=E7=90=86=E5=AE=8C=E6=AF=95=EF=BC=8C=E5=86=8D=E9=87=8A=E6=94= =BE=E9=A1=B5=E8=A1=A8=E9=94=81=E3=80=82 + +=E5=BC=95=E7=94=A8=E8=AE=A1=E6=95=B0=E5=92=8C=E9=80=8F=E6=98=8E=E5=A4=A7= =E9=A1=B5 +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D + +THP=E7=9A=84=E8=AE=A1=E6=95=B0=E8=B7=9F=E5=85=B6=E4=BB=96=E5=A4=8D=E5=90= =88=E9=A1=B5=E7=9A=84=E8=AE=A1=E6=95=B0=E5=A4=A7=E8=87=B4=E7=9B=B8=E5=90=8C= =EF=BC=9A + + - get_page()/put_page()=E5=92=8CGUP=E9=83=BD=E5=9C=A8=E9=A6=96=E9=A1=B5= =E4=B8=8A=E8=BF=9B=E8=A1=8C=E8=AE=A1=E6=95=B0=EF=BC=88=E4=BF=AE=E6=94=B9hea= d page->_refcount=EF=BC=89 + + - =E5=B0=BE=E9=A1=B5=E7=9A=84_refcount=E6=B0=B8=E8=BF=9C=E6=98=AF0. get_p= age_unless_zero()=E6=B0=B8=E8=BF=9C=E6=97=A0=E6=B3=95get=E5=88=B0=E5=B0=BE= =E9=A1=B5=E3=80=82 + + - map/unmap=E7=89=B9=E5=AE=9APTE entry=E6=97=B6=EF=BC=8C=E5=A2=9E=E5=87= =8F=E7=9A=84=E6=98=AF=E5=A4=8D=E5=90=88=E9=A1=B5=E4=B8=AD=E7=9B=B8=E5=BA=94= =E5=AD=90=E9=A1=B5=E7=9A=84_mapcount. + + - map/unmap=E6=95=B4=E4=B8=AA=E5=A4=8D=E5=90=88=E9=A1=B5=E6=97=B6=EF=BC= =8C=E5=A2=9E=E5=87=8F=E7=9A=84=E6=98=AFcompound_mapcount=E5=B1=9E=E6=80=A7= =E3=80=82=E8=AF=A5=E5=B1=9E=E6=80=A7=E4=BF=9D=E5=AD=98=E5=9C=A8=E7=AC=AC=E4= =B8=80=E4=B8=AA + =E5=B0=BE=E9=A1=B5=E4=B8=AD=E3=80=82=E5=AF=B9=E4=BA=8E=E6=96=87=E4=BB= =B6=E4=B8=AD=E7=9A=84=E5=A4=A7=E9=A1=B5=EF=BC=8C=E8=BF=98=E8=A6=81=E5=A2=9E= =E5=8A=A0=E6=89=80=E6=9C=89=E5=AD=90=E9=A1=B5=E4=B8=AD=E7=9A=84_mapcount=EF= =BC=8C=E8=BF=99=E6=A0=B7=E6=98=AF=E4=B8=BA=E4=BA=86=E5=9C=A8=E6=A3=80=E6=B5= =8B + =E5=AD=90=E9=A1=B5=E7=9A=84=E8=A7=A3=E6=98=A0=E5=B0=84=E6=97=B6=E4=B8= =8D=E9=9C=80=E8=80=83=E8=99=91=E7=AB=9E=E4=BA=89=E9=97=AE=E9=A2=98=E3=80=82 + +PageDoubleMap() =E8=A1=A8=E6=98=8E=E5=A4=A7=E9=A1=B5 *=E5=8F=AF=E8=83=BD* = =E8=A2=AB=E6=98=A0=E5=B0=84=E4=B8=BA=E4=BA=86PTE. + +=E5=AF=B9=E5=8C=BF=E5=90=8D=E9=A1=B5=EF=BC=8CPageDoubleMap()=E4=B9=9F=E8= =A1=A8=E7=A4=BA=E6=89=80=E6=9C=89=E5=AD=90=E9=A1=B5=E7=9A=84_mapcount=E9=83= =BD=E5=81=8F=E7=A7=BB=E4=BA=861. +=E5=9C=A8=E9=A1=B5=E8=A2=AB=E5=90=8C=E6=97=B6=E6=98=A0=E5=B0=84=E4=B8=BA= =E4=BA=86PMD=E5=92=8CPTE=E7=9A=84=E6=83=85=E5=86=B5=E4=B8=8B=EF=BC=8C=E8=BF= =99=E4=B8=AA=E9=A2=9D=E5=A4=96=E7=9A=84=E5=BC=95=E7=94=A8=E5=8F=AF=E4=BB=A5= =E9=81=BF=E5=85=8D=E5=AD=90=E9=A1=B5=E8=A7=A3=E6=98=A0=E5=B0=84=E6=97=B6=E7= =9A=84=E7=AB=9E=E4=BA=89=E3=80=82 + +=E8=BF=99=E4=B8=AA=E4=BC=98=E5=8C=96=E4=B9=9F=E5=8F=AF=E4=BB=A5=E8=BF=BD= =E8=B8=AA=E6=AF=8F=E4=B8=AA=E5=AD=90=E9=A1=B5mapcount=E6=89=80=E5=B8=A6=E6= =9D=A5=E7=9A=84=E6=80=A7=E8=83=BD=E5=BC=80=E9=94=80=E3=80=82=E5=8F=A6=E4=B8= =80=E7=A7=8D=E8=A7=A3=E5=86=B3=E6=96=B9=E6=B3=95=E6=98=AF=E5=9C=A8=E6=AF=8F= =E6=AC=A1 +map/unmap=E6=95=B4=E4=B8=AA=E5=A4=8D=E5=90=88=E9=A1=B5=E6=97=B6=E6=9B=B4= =E6=94=B9=E6=89=80=E6=9C=89=E5=AD=90=E9=A1=B5=E7=9A=84_mapcount. + 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