From: Muchun Song <songmuchun@bytedance.com>
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 <songmuchun@bytedance.com>
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 [thread overview]
Message-ID: <20201113105952.11638-3-songmuchun@bytedance.com> (raw)
In-Reply-To: <20201113105952.11638-1-songmuchun@bytedance.com>
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 <songmuchun@bytedance.com>
Acked-by: Mike Kravetz <mike.kravetz@oracle.com>
---
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 <linux/bootmem_info.h>
#include <linux/memory_hotplug.h>
+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 <linux/memory.h>
#include <linux/memremap.h>
#include <linux/memory_hotplug.h>
-#include <linux/bootmem_info.h>
#include <linux/highmem.h>
#include <linux/vmalloc.h>
#include <linux/ioport.h>
@@ -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 <linux/vmalloc.h>
#include <linux/swap.h>
#include <linux/swapops.h>
+#include <linux/bootmem_info.h>
#include "internal.h"
#include <asm/dma.h>
--
2.11.0
next prev parent reply other threads:[~2020-11-13 11:02 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-13 10:59 [PATCH v4 00/21] Free some vmemmap pages of hugetlb page Muchun Song
2020-11-13 10:59 ` [PATCH v4 01/21] mm/memory_hotplug: Move bootmem info registration API to bootmem_info.c Muchun Song
2020-11-16 13:50 ` Oscar Salvador
2020-11-13 10:59 ` Muchun Song [this message]
2020-11-16 13:52 ` [PATCH v4 02/21] mm/memory_hotplug: Move {get,put}_page_bootmem() " Oscar Salvador
2020-11-13 10:59 ` [PATCH v4 03/21] mm/hugetlb: Introduce a new config HUGETLB_PAGE_FREE_VMEMMAP Muchun Song
2020-11-18 22:38 ` Mike Kravetz
2020-11-19 2:57 ` [External] " Muchun Song
2020-11-13 10:59 ` [PATCH v4 04/21] mm/hugetlb: Introduce nr_free_vmemmap_pages in the struct hstate Muchun Song
2020-11-16 13:33 ` Oscar Salvador
2020-11-16 15:40 ` [External] " Muchun Song
2020-11-18 22:54 ` Mike Kravetz
2020-11-18 23:48 ` Mike Kravetz
2020-11-19 3:00 ` [External] " Muchun Song
2020-11-13 10:59 ` [PATCH v4 05/21] mm/hugetlb: Introduce pgtable allocation/freeing helpers Muchun Song
2020-11-17 15:06 ` Oscar Salvador
2020-11-17 15:29 ` [External] " Muchun Song
2020-11-19 6:17 ` Muchun Song
2020-11-19 23:21 ` Mike Kravetz
2020-11-20 2:52 ` Muchun Song
2020-11-19 23:37 ` Mike Kravetz
2020-11-13 10:59 ` [PATCH v4 06/21] mm/bootmem_info: Introduce {free,prepare}_vmemmap_page() Muchun Song
2020-11-13 10:59 ` [PATCH v4 07/21] mm/bootmem_info: Combine bootmem info and type into page->freelist Muchun Song
2020-11-13 10:59 ` [PATCH v4 08/21] mm/hugetlb: Initialize page table lock for vmemmap Muchun Song
2020-11-13 10:59 ` [PATCH v4 09/21] mm/hugetlb: Free the vmemmap pages associated with each hugetlb page Muchun Song
2020-11-17 9:54 ` Song Bao Hua (Barry Song)
2020-11-17 10:26 ` [External] " Muchun Song
2020-11-18 3:21 ` Song Bao Hua (Barry Song)
2020-11-13 10:59 ` [PATCH v4 10/21] mm/hugetlb: Defer freeing of hugetlb pages Muchun Song
2020-11-13 10:59 ` [PATCH v4 11/21] mm/hugetlb: Allocate the vmemmap pages associated with each hugetlb page Muchun Song
2020-11-13 10:59 ` [PATCH v4 12/21] mm/hugetlb: Introduce remap_huge_page_pmd_vmemmap helper Muchun Song
2020-11-13 10:59 ` [PATCH v4 13/21] mm/hugetlb: Use PG_slab to indicate split pmd Muchun Song
2020-11-13 10:59 ` [PATCH v4 14/21] mm/hugetlb: Support freeing vmemmap pages of gigantic page Muchun Song
2020-11-13 10:59 ` [PATCH v4 15/21] mm/hugetlb: Set the PageHWPoison to the raw error page Muchun Song
2020-11-13 10:59 ` [PATCH v4 16/21] mm/hugetlb: Flush work when dissolving hugetlb page Muchun Song
2020-11-13 10:59 ` [PATCH v4 17/21] mm/hugetlb: Add a kernel parameter hugetlb_free_vmemmap Muchun Song
2020-11-13 10:59 ` [PATCH v4 18/21] mm/hugetlb: Merge pte to huge pmd only for gigantic page Muchun Song
2020-11-13 10:59 ` [PATCH v4 19/21] mm/hugetlb: Gather discrete indexes of tail page Muchun Song
2020-11-13 10:59 ` [PATCH v4 20/21] mm/hugetlb: Add BUILD_BUG_ON to catch invalid usage of tail struct page Muchun Song
2020-11-13 10:59 ` [PATCH v4 21/21] mm/hugetlb: Disable freeing vmemmap if struct page size is not power of two Muchun Song
2020-11-17 10:15 ` [PATCH v4 00/21] Free some vmemmap pages of hugetlb page Song Bao Hua (Barry Song)
2020-11-17 10:49 ` [External] " Muchun Song
2020-11-17 11:07 ` Song Bao Hua (Barry Song)
2020-11-17 16:29 ` Muchun Song
2020-11-17 19:22 ` Matthew Wilcox
2020-11-18 2:43 ` Muchun Song
2020-11-17 19:45 ` Oscar Salvador
2020-11-18 3:27 ` Muchun Song
2020-11-18 3:27 ` Song Bao Hua (Barry Song)
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