From patchwork Fri Nov 13 10:59:33 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Muchun Song X-Patchwork-Id: 11903009 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 4490B138B for ; Fri, 13 Nov 2020 11:03:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1C4AD2224C for ; Fri, 13 Nov 2020 11:03:41 +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="QJPR6F7R" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726514AbgKMLDf (ORCPT ); Fri, 13 Nov 2020 06:03:35 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54022 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726431AbgKMLCL (ORCPT ); Fri, 13 Nov 2020 06:02:11 -0500 Received: from mail-pg1-x543.google.com (mail-pg1-x543.google.com [IPv6:2607:f8b0:4864:20::543]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EF769C061A49 for ; Fri, 13 Nov 2020 03:01:13 -0800 (PST) Received: by mail-pg1-x543.google.com with SMTP id j19so8000pgg.5 for ; Fri, 13 Nov 2020 03:01:13 -0800 (PST) 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=54lEiVv8FYXYBhDxSmTzUswAk1pRn+2hKBQrJSvurBE=; b=QJPR6F7RxLD4VyQ8ybuR4Sw6RQISQ0abOecOPPQN9KTP/Rzf6CDogzj50IQkUxjZ0O qCa0Qf8eAOU0mDnEih49QhP2pmk9OTzjnklutFNaKV4RR2li+wwkmQDQsC6003hpCrlQ NZurSPgHA/9zn9OdyTGoNSkum6GPJ/uF+39hO8hQXE535rdd6i+7kL16Jg3JzjNvOTTU Sk7m9hScSWu09OP6+GvTqrTx8D083Sceg3CAkftYgNy1BdVu4KqGtxEHlQxpj1UazkBi Osmh+fzOdOGL1rHyJGBAYEKZDVRvjbPSSCdQ/KhIul2E0DHED//Jm/ecaU0YXyZOkxZy rWCg== 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=54lEiVv8FYXYBhDxSmTzUswAk1pRn+2hKBQrJSvurBE=; b=bgySB0in534JVNqgat+itDOpTiRgU1nE5nz+9wL1a5rbGJ8idcSZUUguO8+yT4DlZW iqP9kTj9JdoOFMfQeFiIpiCIfwbVA9R/8KoZf5blAJsU+3HwBtl5q4qm9xRPa/hfa1zI IITYOkrOJPIiVXEbXwZrC4exCCBVmnmQJOmD6VqgCnuv/R0DmOfHoHXupL84wFdMD1qy RRDrMrzD38pI5hjf7MAw8yBG6xKlBAVUKQbeMim110ea+NVcTWk2sUDajxai7x2p/am5 vnkyH+dXuxBBbsCK9FuqmZ1FPN8rr8bSR3GSusRWuQsto7XTwHS1HmZ9Qsr3J64F4arQ Eymw== X-Gm-Message-State: AOAM531/UBcD3cV5YgUQ3cfoKvL1nIM8Gksn/G5siZnajErEbOn61VRX OBiMPrF0/EBUR5kqf90l8a8LzA== X-Google-Smtp-Source: ABdhPJyF2z+PzSW3K5xrwYqV2JFj+OJqHX0IlvEqMHCE97nCGYgs9Uu6GiAzh2T3wlvueVk78tk5RQ== X-Received: by 2002:a63:1c26:: with SMTP id c38mr1552302pgc.398.1605265273557; Fri, 13 Nov 2020 03:01:13 -0800 (PST) Received: from localhost.localdomain ([61.120.150.78]) by smtp.gmail.com with ESMTPSA id f1sm8909959pfc.56.2020.11.13.03.01.02 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Fri, 13 Nov 2020 03:01:12 -0800 (PST) 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, willy@infradead.org, osalvador@suse.de, mhocko@suse.com Cc: duanxiongchun@bytedance.com, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, Muchun Song Subject: [PATCH v4 02/21] mm/memory_hotplug: Move {get,put}_page_bootmem() to bootmem_info.c Date: Fri, 13 Nov 2020 18:59:33 +0800 Message-Id: <20201113105952.11638-3-songmuchun@bytedance.com> X-Mailer: git-send-email 2.21.0 (Apple Git-122) In-Reply-To: <20201113105952.11638-1-songmuchun@bytedance.com> References: <20201113105952.11638-1-songmuchun@bytedance.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@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. This is just code movement without any functional change. Signed-off-by: Muchun Song Acked-by: Mike Kravetz Reviewed-by: Oscar Salvador --- arch/x86/mm/init_64.c | 2 +- include/linux/bootmem_info.h | 13 +++++++++++++ include/linux/memory_hotplug.h | 4 ---- mm/bootmem_info.c | 25 +++++++++++++++++++++++++ mm/memory_hotplug.c | 27 --------------------------- mm/sparse.c | 1 + 6 files changed, 40 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..fcab5a3f8cc0 100644 --- a/mm/bootmem_info.c +++ b/mm/bootmem_info.c @@ -10,6 +10,31 @@ #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