From patchwork Sun Apr 12 19:48:59 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mike Rapoport X-Patchwork-Id: 11484771 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 9045A1392 for ; Sun, 12 Apr 2020 19:54:30 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 5448C214D8 for ; Sun, 12 Apr 2020 19:54:30 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="u+cDL9Ay" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5448C214D8 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 8BA168E00EA; Sun, 12 Apr 2020 15:54:29 -0400 (EDT) Delivered-To: linux-mm-outgoing@kvack.org Received: by kanga.kvack.org (Postfix, from userid 40) id 890C88E00D0; Sun, 12 Apr 2020 15:54:29 -0400 (EDT) X-Original-To: int-list-linux-mm@kvack.org X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 77F9A8E00EA; Sun, 12 Apr 2020 15:54:29 -0400 (EDT) X-Original-To: linux-mm@kvack.org X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0183.hostedemail.com [216.40.44.183]) by kanga.kvack.org (Postfix) with ESMTP id 600D78E00D0 for ; Sun, 12 Apr 2020 15:54:29 -0400 (EDT) Received: from smtpin06.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id 2A70B180AD801 for ; Sun, 12 Apr 2020 19:54:29 +0000 (UTC) X-FDA: 76700255058.06.veil92_2719fafaebb34 X-Spam-Summary: 2,0,0,78f5d31bf033dce2,d41d8cd98f00b204,rppt@kernel.org,,RULES_HIT:41:355:379:541:800:960:966:973:988:989:1260:1311:1314:1345:1359:1437:1515:1534:1541:1711:1730:1747:1777:1792:2196:2199:2393:2553:2559:2562:3138:3139:3140:3141:3142:3352:3865:3866:3867:3870:3871:3872:3874:4321:4385:5007:6119:6261:6653:6742:6743:7576:8660:10004:11026:11232:11473:11658:11914:12043:12297:12438:12517:12519:12555:12679:12895:12986:13069:13148:13230:13311:13357:13894:14181:14384:14394:14721:21080:21433:21451:21627:30012:30054:30070:30090,0,RBL:198.145.29.99:@kernel.org:.lbl8.mailshell.net-62.2.0.100 64.100.201.201,CacheIP:none,Bayesian:0.5,0.5,0.5,Netcheck:none,DomainCache:0,MSF:not bulk,SPF:fp,MSBL:0,DNSBL:neutral,Custom_rules:0:0:0,LFtime:23,LUA_SUMMARY:none X-HE-Tag: veil92_2719fafaebb34 X-Filterd-Recvd-Size: 4763 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf31.hostedemail.com (Postfix) with ESMTP for ; Sun, 12 Apr 2020 19:54:28 +0000 (UTC) Received: from aquarius.haifa.ibm.com (nesher1.haifa.il.ibm.com [195.110.40.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id B2DF521569; Sun, 12 Apr 2020 19:54:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1586721267; bh=1RVcfnAVVy1AOFZedJzROhTSSnKRoGcShhyioeaCXqE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=u+cDL9Ay57g0t0AmxzSf1s9ge6PHXPdoiABBA+FnntFugxZQ3ay62Fn/wxvhA46ys LvgHJZQQQMChrWXoV7Loga6rBUNnWEZZY/bl8oZkZda++jqcfs7SGJJqgA6ZnwPRPa Szh9qdEAYeTz2OcNdts2q+xOIGjdhJ6Uok1Jog6A= From: Mike Rapoport To: linux-kernel@vger.kernel.org Cc: Andrew Morton , Baoquan He , Brian Cain , Catalin Marinas , "David S. Miller" , Geert Uytterhoeven , Greentime Hu , Greg Ungerer , Guan Xuetao , Guo Ren , Heiko Carstens , Helge Deller , Hoan Tran , "James E.J. Bottomley" , Jonathan Corbet , Ley Foon Tan , Mark Salter , Matt Turner , Max Filippov , Michael Ellerman , Michal Hocko , Michal Simek , Mike Rapoport , Nick Hu , Paul Walmsley , Richard Weinberger , Rich Felker , Russell King , Stafford Horne , Thomas Bogendoerfer , Tony Luck , Vineet Gupta , x86@kernel.org, Yoshinori Sato , linux-alpha@vger.kernel.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-c6x-dev@linux-c6x.org, linux-csky@vger.kernel.org, linux-doc@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-mm@kvack.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, linux-snps-arc@lists.infradead.org, linux-um@lists.infradead.org, linux-xtensa@linux-xtensa.org, openrisc@lists.librecores.org, sparclinux@vger.kernel.org, uclinux-h8-devel@lists.sourceforge.jp, Mike Rapoport Subject: [PATCH 21/21] docs/vm: update memory-models documentation Date: Sun, 12 Apr 2020 22:48:59 +0300 Message-Id: <20200412194859.12663-22-rppt@kernel.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200412194859.12663-1-rppt@kernel.org> References: <20200412194859.12663-1-rppt@kernel.org> MIME-Version: 1.0 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: From: Mike Rapoport to reflect the updates to free_area_init() family of functions. Signed-off-by: Mike Rapoport --- Documentation/vm/memory-model.rst | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/Documentation/vm/memory-model.rst b/Documentation/vm/memory-model.rst index 58a12376b7df..91228044ed16 100644 --- a/Documentation/vm/memory-model.rst +++ b/Documentation/vm/memory-model.rst @@ -46,11 +46,10 @@ maps the entire physical memory. For most architectures, the holes have entries in the `mem_map` array. The `struct page` objects corresponding to the holes are never fully initialized. -To allocate the `mem_map` array, architecture specific setup code -should call :c:func:`free_area_init_node` function or its convenience -wrapper :c:func:`free_area_init`. Yet, the mappings array is not -usable until the call to :c:func:`memblock_free_all` that hands all -the memory to the page allocator. +To allocate the `mem_map` array, architecture specific setup code should +call :c:func:`free_area_init` function. Yet, the mappings array is not +usable until the call to :c:func:`memblock_free_all` that hands all the +memory to the page allocator. If an architecture enables `CONFIG_ARCH_HAS_HOLES_MEMORYMODEL` option, it may free parts of the `mem_map` array that do not cover the