The patch titled
Subject: mm: page_alloc: move set_zone_contiguous() into mm_init.c
has been added to the -mm mm-unstable branch. Its filename is
mm-page_alloc-move-set_zone_contiguous-into-mm_initc.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-page_alloc-move-set_zone_contiguous-into-mm_initc.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx>
Subject: mm: page_alloc: move set_zone_contiguous() into mm_init.c
Date: Tue, 16 May 2023 14:38:11 +0800
set_zone_contiguous() is only used in mm init/hotplug, and
clear_zone_contiguous() only used in hotplug, move them from page_alloc.c
to the more appropriate file.
Link: https://lkml.kernel.org/r/20230516063821.121844-4-wangkefeng.wang@xxxxxxxxxx
Signed-off-by: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx>
Cc: David Hildenbrand <david@xxxxxxxxxx>
Cc: "Huang, Ying" <ying.huang@xxxxxxxxx>
Cc: Iurii Zaikin <yzaikin@xxxxxxxxxx>
Cc: Kees Cook <keescook@xxxxxxxxxxxx>
Cc: Len Brown <len.brown@xxxxxxxxx>
Cc: Luis Chamberlain <mcgrof@xxxxxxxxxx>
Cc: Mike Rapoport (IBM) <rppt@xxxxxxxxxx>
Cc: Oscar Salvador <osalvador@xxxxxxx>
Cc: Pavel Machek <pavel@xxxxxx>
Cc: Rafael J. Wysocki <rafael@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/memory_hotplug.h | 3 ---
mm/internal.h | 7 +++++++
mm/mm_init.c | 22 ++++++++++++++++++++++
mm/page_alloc.c | 27 ---------------------------
4 files changed, 29 insertions(+), 30 deletions(-)
--- a/include/linux/memory_hotplug.h~mm-page_alloc-move-set_zone_contiguous-into-mm_initc
+++ a/include/linux/memory_hotplug.h
@@ -326,9 +326,6 @@ static inline int remove_memory(u64 star
static inline void __remove_memory(u64 start, u64 size) {}
#endif /* CONFIG_MEMORY_HOTREMOVE */
-extern void set_zone_contiguous(struct zone *zone);
-extern void clear_zone_contiguous(struct zone *zone);
-
#ifdef CONFIG_MEMORY_HOTPLUG
extern void __ref free_area_init_core_hotplug(struct pglist_data *pgdat);
extern int __add_memory(int nid, u64 start, u64 size, mhp_t mhp_flags);
--- a/mm/internal.h~mm-page_alloc-move-set_zone_contiguous-into-mm_initc
+++ a/mm/internal.h
@@ -371,6 +371,13 @@ static inline struct page *pageblock_pfn
return __pageblock_pfn_to_page(start_pfn, end_pfn, zone);
}
+void set_zone_contiguous(struct zone *zone);
+
+static inline void clear_zone_contiguous(struct zone *zone)
+{
+ zone->contiguous = false;
+}
+
extern int __isolate_free_page(struct page *page, unsigned int order);
extern void __putback_isolated_page(struct page *page, unsigned int order,
int mt);
--- a/mm/mm_init.c~mm-page_alloc-move-set_zone_contiguous-into-mm_initc
+++ a/mm/mm_init.c
@@ -2330,6 +2330,28 @@ void __init init_cma_reserved_pageblock(
}
#endif
+void set_zone_contiguous(struct zone *zone)
+{
+ unsigned long block_start_pfn = zone->zone_start_pfn;
+ unsigned long block_end_pfn;
+
+ block_end_pfn = pageblock_end_pfn(block_start_pfn);
+ for (; block_start_pfn < zone_end_pfn(zone);
+ block_start_pfn = block_end_pfn,
+ block_end_pfn += pageblock_nr_pages) {
+
+ block_end_pfn = min(block_end_pfn, zone_end_pfn(zone));
+
+ if (!__pageblock_pfn_to_page(block_start_pfn,
+ block_end_pfn, zone))
+ return;
+ cond_resched();
+ }
+
+ /* We confirm that there is no hole */
+ zone->contiguous = true;
+}
+
void __init page_alloc_init_late(void)
{
struct zone *zone;
--- a/mm/page_alloc.c~mm-page_alloc-move-set_zone_contiguous-into-mm_initc
+++ a/mm/page_alloc.c
@@ -1532,33 +1532,6 @@ struct page *__pageblock_pfn_to_page(uns
return start_page;
}
-void set_zone_contiguous(struct zone *zone)
-{
- unsigned long block_start_pfn = zone->zone_start_pfn;
- unsigned long block_end_pfn;
-
- block_end_pfn = pageblock_end_pfn(block_start_pfn);
- for (; block_start_pfn < zone_end_pfn(zone);
- block_start_pfn = block_end_pfn,
- block_end_pfn += pageblock_nr_pages) {
-
- block_end_pfn = min(block_end_pfn, zone_end_pfn(zone));
-
- if (!__pageblock_pfn_to_page(block_start_pfn,
- block_end_pfn, zone))
- return;
- cond_resched();
- }
-
- /* We confirm that there is no hole */
- zone->contiguous = true;
-}
-
-void clear_zone_contiguous(struct zone *zone)
-{
- zone->contiguous = false;
-}
-
/*
* The order of subdivision here is critical for the IO subsystem.
* Please do not alter this order without good reasons and regression
_
Patches currently in -mm which might be from wangkefeng.wang@xxxxxxxxxx are
mm-memory_failure-move-memory_failure_attr_group-under-memory_failure.patch
mm-memory-failure-move-sysctl-register-in-memory_failure_init.patch
mm-page_alloc-move-mirrored_kernelcore-into-mm_initc.patch
mm-page_alloc-move-init_on_alloc-free-into-mm_initc.patch
mm-page_alloc-move-set_zone_contiguous-into-mm_initc.patch
mm-page_alloc-collect-mem-statistic-into-show_memc.patch
mm-page_alloc-squash-page_is_consistent.patch
mm-page_alloc-remove-alloc_contig_dump_pages-stub.patch
mm-page_alloc-split-out-fail_page_alloc.patch
mm-page_alloc-split-out-debug_pagealloc.patch
mm-page_alloc-move-mark_free_page-into-snapshotc.patch
mm-page_alloc-move-pm_-function-into-power.patch
mm-vmscan-use-gfp_has_io_fs.patch
mm-page_alloc-move-sysctls-into-it-own-fils.patch
mm-page_alloc-move-is_check_pages_enabled-into-page_allocc.patch
