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=-12.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 4649CC43461 for ; Wed, 16 Sep 2020 00:45:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 014BF2076B for ; Wed, 16 Sep 2020 00:45:16 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=bytedance-com.20150623.gappssmtp.com header.i=@bytedance-com.20150623.gappssmtp.com header.b="h7SeOiCc" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726629AbgIPApP (ORCPT ); Tue, 15 Sep 2020 20:45:15 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48594 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726468AbgIONAv (ORCPT ); Tue, 15 Sep 2020 09:00:51 -0400 Received: from mail-pf1-x442.google.com (mail-pf1-x442.google.com [IPv6:2607:f8b0:4864:20::442]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CDEFBC061353 for ; Tue, 15 Sep 2020 06:00:30 -0700 (PDT) Received: by mail-pf1-x442.google.com with SMTP id o68so1911028pfg.2 for ; Tue, 15 Sep 2020 06:00:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=MqToO/0MznVsff9Iws7ZuL7k7n69o4QL0M1jSkqccgc=; b=h7SeOiCcxT7x6e5Ak5+5ZANQAYRDcyvaANfBeZRwr1+FO8L5jlYFMa8sUmVXp5+aCp RnHhcDVSVW4e9ks9Oa7IUpTQ2u1wST5GU+GF9jeqhvvasT16Voswm3aEG7sknbeie6n1 m7OlXgfV/KHgQKOuzOTW8GtK4YLDmz8gP0uNe527k6FCqlGBMXqSjoZ8L+27lM2dXc4I kodegbrx6CE6xtLghrsggW8pKaxJZJW+uVRxAHBjC28//F2Sr9k2DQcLNJenUQbbKreP RpBfTMotO0jMSTMIhaQ3n9xbrFmdRGXYzgN3GUSzE7jNvFaSjRshzoSZ6IzzsfMym3UV +Nvw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=MqToO/0MznVsff9Iws7ZuL7k7n69o4QL0M1jSkqccgc=; b=eokeVbx416CJYeUtiYDfaH26uW+wZk2GfUHJNcFoSQicune3fVUHQSGXhH/yWNBUkj axODh/SwgALafv06Wo6oiaP/uxx0K1VbKKnuHLNoeasyS0Vvb92Z20TfT9J17hXPiGaW fKYzRYPpu2DpOoNtxRKQlvxRbhIVbuButZxRHUa7ObomNkKILoi/MshCGtehaBQ2jCEr tRVKmBcT9WQHC2kQjXXoyTrnYo5eJxcGyQqbR8LAdj+uk2lrYO2kCqjfnMSUfplBuVsD ozaWyN5r75hCfUDx/WBiD4RkVSbmGNr+x4Td+Ueouv5UPsOpZdO5k/j9fNKaCfCRUARr y76w== X-Gm-Message-State: AOAM531kZfYeU27UWZPpdxelOM6kcvdpgvR/2/P9OMeCKYViE/IDJxP2 X6JPLYZmffhtXtW6lcAr+w1Y6g== X-Google-Smtp-Source: ABdhPJz6zZnmYTckla1P4iMrpY5Pf5cnK1hLW2NVusEiSVfD3o2ljhZnwiLLa6GayVaDhBPdb8Gw6g== X-Received: by 2002:aa7:989a:0:b029:142:2501:34da with SMTP id r26-20020aa7989a0000b0290142250134damr1824793pfl.51.1600174829641; Tue, 15 Sep 2020 06:00:29 -0700 (PDT) Received: from localhost.bytedance.net ([103.136.220.66]) by smtp.gmail.com with ESMTPSA id w185sm14269855pfc.36.2020.09.15.06.00.18 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Tue, 15 Sep 2020 06:00:29 -0700 (PDT) From: Muchun Song To: corbet@lwn.net, mike.kravetz@oracle.com, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, x86@kernel.org, hpa@zytor.com, dave.hansen@linux.intel.com, luto@kernel.org, peterz@infradead.org, viro@zeniv.linux.org.uk, akpm@linux-foundation.org, paulmck@kernel.org, mchehab+huawei@kernel.org, pawan.kumar.gupta@linux.intel.com, rdunlap@infradead.org, oneukum@suse.com, anshuman.khandual@arm.com, jroedel@suse.de, almasrymina@google.com, rientjes@google.com Cc: linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, Muchun Song Subject: [RFC PATCH 02/24] mm/memory_hotplug: Move {get,put}_page_bootmem() to bootmem_info.c Date: Tue, 15 Sep 2020 20:59:25 +0800 Message-Id: <20200915125947.26204-3-songmuchun@bytedance.com> X-Mailer: git-send-email 2.21.0 (Apple Git-122) In-Reply-To: <20200915125947.26204-1-songmuchun@bytedance.com> References: <20200915125947.26204-1-songmuchun@bytedance.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org In the later patch, we will use {get,put}_page_bootmem() to initialize the page for vmemmap or free vmemmap page to buddy. So move them out of CONFIG_MEMORY_HOTPLUG_SPARSE. Signed-off-by: Muchun Song --- arch/x86/mm/init_64.c | 2 +- include/linux/bootmem_info.h | 13 +++++++++++++ include/linux/memory_hotplug.h | 4 ---- mm/bootmem_info.c | 26 ++++++++++++++++++++++++++ mm/memory_hotplug.c | 27 --------------------------- mm/sparse.c | 1 + 6 files changed, 41 insertions(+), 32 deletions(-) diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index c7f7ad55b625..0a45f062826e 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c @@ -1572,7 +1572,7 @@ int __meminit vmemmap_populate(unsigned long start, unsigned long end, int node, return err; } -#if defined(CONFIG_MEMORY_HOTPLUG_SPARSE) && defined(CONFIG_HAVE_BOOTMEM_INFO_NODE) +#ifdef CONFIG_HAVE_BOOTMEM_INFO_NODE void register_page_bootmem_memmap(unsigned long section_nr, struct page *start_page, unsigned long nr_pages) { diff --git a/include/linux/bootmem_info.h b/include/linux/bootmem_info.h index 65bb9b23140f..4ed6dee1adc9 100644 --- a/include/linux/bootmem_info.h +++ b/include/linux/bootmem_info.h @@ -18,10 +18,23 @@ enum { #ifdef CONFIG_HAVE_BOOTMEM_INFO_NODE void __init register_page_bootmem_info_node(struct pglist_data *pgdat); + +void get_page_bootmem(unsigned long info, struct page *page, + unsigned long type); +void put_page_bootmem(struct page *page); #else static inline void register_page_bootmem_info_node(struct pglist_data *pgdat) { } + +static inline void put_page_bootmem(struct page *page) +{ +} + +static inline void get_page_bootmem(unsigned long info, struct page *page, + unsigned long type) +{ +} #endif #endif /* __LINUX_BOOTMEM_INFO_H */ diff --git a/include/linux/memory_hotplug.h b/include/linux/memory_hotplug.h index 19e5d067294c..c9f3361fe84b 100644 --- a/include/linux/memory_hotplug.h +++ b/include/linux/memory_hotplug.h @@ -197,10 +197,6 @@ static inline void arch_refresh_nodedata(int nid, pg_data_t *pgdat) #endif /* CONFIG_NUMA */ #endif /* CONFIG_HAVE_ARCH_NODEDATA_EXTENSION */ -extern void put_page_bootmem(struct page *page); -extern void get_page_bootmem(unsigned long ingo, struct page *page, - unsigned long type); - void get_online_mems(void); void put_online_mems(void); diff --git a/mm/bootmem_info.c b/mm/bootmem_info.c index 39fa8fc120bc..d276e96e487f 100644 --- a/mm/bootmem_info.c +++ b/mm/bootmem_info.c @@ -10,6 +10,32 @@ #include #include +void get_page_bootmem(unsigned long info, struct page *page, + unsigned long type) +{ + page->freelist = (void *)type; + SetPagePrivate(page); + set_page_private(page, info); + page_ref_inc(page); +} + +void put_page_bootmem(struct page *page) +{ + unsigned long type; + + type = (unsigned long) page->freelist; + BUG_ON(type < MEMORY_HOTPLUG_MIN_BOOTMEM_TYPE || + type > MEMORY_HOTPLUG_MAX_BOOTMEM_TYPE); + + if (page_ref_dec_return(page) == 1) { + page->freelist = NULL; + ClearPagePrivate(page); + set_page_private(page, 0); + INIT_LIST_HEAD(&page->lru); + free_reserved_page(page); + } +} + #ifndef CONFIG_SPARSEMEM_VMEMMAP static void register_page_bootmem_info_section(unsigned long start_pfn) { diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index 2da4ad071456..ae57eedc341f 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -21,7 +21,6 @@ #include #include #include -#include #include #include #include @@ -142,32 +141,6 @@ static void release_memory_resource(struct resource *res) } #ifdef CONFIG_MEMORY_HOTPLUG_SPARSE -void get_page_bootmem(unsigned long info, struct page *page, - unsigned long type) -{ - page->freelist = (void *)type; - SetPagePrivate(page); - set_page_private(page, info); - page_ref_inc(page); -} - -void put_page_bootmem(struct page *page) -{ - unsigned long type; - - type = (unsigned long) page->freelist; - BUG_ON(type < MEMORY_HOTPLUG_MIN_BOOTMEM_TYPE || - type > MEMORY_HOTPLUG_MAX_BOOTMEM_TYPE); - - if (page_ref_dec_return(page) == 1) { - page->freelist = NULL; - ClearPagePrivate(page); - set_page_private(page, 0); - INIT_LIST_HEAD(&page->lru); - free_reserved_page(page); - } -} - static int check_pfn_span(unsigned long pfn, unsigned long nr_pages, const char *reason) { diff --git a/mm/sparse.c b/mm/sparse.c index b25ad8e64839..a4138410d890 100644 --- a/mm/sparse.c +++ b/mm/sparse.c @@ -13,6 +13,7 @@ #include #include #include +#include #include "internal.h" #include -- 2.20.1