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 Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 26799C433F5 for ; Thu, 31 Mar 2022 02:47:04 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 745308D0001; Wed, 30 Mar 2022 22:47:03 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 6F3CA6B0073; Wed, 30 Mar 2022 22:47:03 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 593308D0001; Wed, 30 Mar 2022 22:47:03 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (relay.hostedemail.com [64.99.140.25]) by kanga.kvack.org (Postfix) with ESMTP id 48FBF6B0072 for ; Wed, 30 Mar 2022 22:47:03 -0400 (EDT) Received: from smtpin09.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay06.hostedemail.com (Postfix) with ESMTP id 0A0CF23C74 for ; Thu, 31 Mar 2022 02:47:03 +0000 (UTC) X-FDA: 79303144326.09.679A861 Received: from mail-yb1-f169.google.com (mail-yb1-f169.google.com [209.85.219.169]) by imf31.hostedemail.com (Postfix) with ESMTP id 377C920002 for ; Thu, 31 Mar 2022 02:47:02 +0000 (UTC) Received: by mail-yb1-f169.google.com with SMTP id e81so10950141ybf.13 for ; Wed, 30 Mar 2022 19:47:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance-com.20210112.gappssmtp.com; s=20210112; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=8NPuXtmkQe6NovnkmDlFmVy5m4QYYpAMInYA7xGOx2Q=; b=Igk8w1PS8SQhCJ4GFifHaOTlnBZ1yUTlTCCw2ZKZOYZCf9pcG6n86gOTs3vA9A78Hg a+ebSS6n4PUW92g2u6vG4oXI1mBIUGcbZ/MDIxApF7hWs2GOEhrBMvjo/pthKNXl/2cG HQVZxuCD5z+5GC7HLQCIZI0O2bT+u6djqpg+y1m1oS3NWDCLB0b/j7VsJSta4O22nNWr l4Gc8pvgDj+0FKUE01YdbRW6Q/VEQZfXiuikPnP8XJozWPSzv1sViCWCAHReRVy59OW/ 9Wx0otMuBX2OmiSIBORuhn3bZCwqdgaQi4xUtsvKZJwouDMnT8tXRt5cPIexjx+wVFlU VCTQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=8NPuXtmkQe6NovnkmDlFmVy5m4QYYpAMInYA7xGOx2Q=; b=0tWSoZBZfcbxCYu4L8f80GgHaiA2DgpAMuSQMHVCCNh/OBbVj4EnViLGkE8r/tN+B+ uBsA9MsrrPZSPHXpyItKxecdEcbhDh7Ts3iwJ8U19fVy8iBKyP4Lwr71HZXBH+oYcePL XhN6UNWFdizXJsOnIHYSDiZuWpqd42U2cXAf6QhVLOhQApQ18YPD1u3XMHBZbvOUPS9i uQnX/S9KEhX/nYg2bBQw46zn4NbhI7HL6aFNA4pWiWlvgOjEuw7o72vHHrQqrJ0W1mzX hDXqTd0Vop41uxklb6R77yuhC3hjkoCOV/nYvBSW+x072Mn1cBpSOREZuYUgNtSXs2yA XrJQ== X-Gm-Message-State: AOAM532Ww/vssVGAzyoq3hx/PaX6/qF45jES9zdz/18xIH00VRYbvwcr EdKzjcqqKRnb+RxZXtshWYqIB10F4jlgVpcy9+dXyw== X-Google-Smtp-Source: ABdhPJywWclxrDM+LzsFtFquAtJcvqnpKnUd/aGQSW5m2jcdMKPz7qt0LRLWKzoNvyjLHUsFfc+oX6CYNUWyV0SQPrE= X-Received: by 2002:a25:e70e:0:b0:634:1a47:4ff2 with SMTP id e14-20020a25e70e000000b006341a474ff2mr2472793ybh.89.1648694821329; Wed, 30 Mar 2022 19:47:01 -0700 (PDT) MIME-Version: 1.0 References: <20220330145400.18565-1-songmuchun@bytedance.com> <20220330194147.000c80ef35345397756e096e@linux-foundation.org> In-Reply-To: <20220330194147.000c80ef35345397756e096e@linux-foundation.org> From: Muchun Song Date: Thu, 31 Mar 2022 10:46:25 +0800 Message-ID: Subject: Re: [PATCH v3] arm64: mm: hugetlb: Enable HUGETLB_PAGE_FREE_VMEMMAP for arm64 To: Andrew Morton Cc: Will Deacon , David Hildenbrand , "Bodeddula, Balasubramaniam" , Oscar Salvador , Mike Kravetz , David Rientjes , Mark Rutland , Catalin Marinas , james.morse@arm.com, Barry Song <21cnbao@gmail.com>, LAK , LKML , Linux Memory Management List , Xiongchun duan , Fam Zheng , Muchun Song Content-Type: text/plain; charset="UTF-8" X-Rspamd-Server: rspam09 X-Rspam-User: X-Stat-Signature: ntyspfyfoxeyq88gerjfeytacussannu Authentication-Results: imf31.hostedemail.com; dkim=pass header.d=bytedance-com.20210112.gappssmtp.com header.s=20210112 header.b=Igk8w1PS; dmarc=pass (policy=none) header.from=bytedance.com; spf=pass (imf31.hostedemail.com: domain of songmuchun@bytedance.com designates 209.85.219.169 as permitted sender) smtp.mailfrom=songmuchun@bytedance.com X-Rspamd-Queue-Id: 377C920002 X-HE-Tag: 1648694822-578657 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 Thu, Mar 31, 2022 at 10:41 AM Andrew Morton wrote: > > On Wed, 30 Mar 2022 22:54:00 +0800 Muchun Song wrote: > > > --- a/fs/Kconfig > > +++ b/fs/Kconfig > > @@ -247,7 +247,7 @@ config HUGETLB_PAGE > > > > config HUGETLB_PAGE_FREE_VMEMMAP > > def_bool HUGETLB_PAGE > > - depends on X86_64 > > + depends on X86_64 || ARM64 > > This list is just going to get longer, until someone goes and switches > it to use ARCH_WANT_HUGETLB_PAGE_FREE_VMEMMAP or whatever. Why not do > that now? Good suggestion. Yep, the line is going to be long if someone wants to enable it for other architectures in the future. Will do. Thanks.