The patch titled
Subject: mm: kill find_min_pfn_with_active_regions()
has been added to the -mm mm-unstable branch. Its filename is
mm-kill-find_min_pfn_with_active_regions.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-kill-find_min_pfn_with_active_regions.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: kill find_min_pfn_with_active_regions()
Date: Mon, 15 Aug 2022 19:10:17 +0800
find_min_pfn_with_active_regions() is only called from free_area_init().
Open-code the PHYS_PFN(memblock_start_of_DRAM()) into free_area_init(),
and kill find_min_pfn_with_active_regions().
Link: https://lkml.kernel.org/r/20220815111017.39341-1-wangkefeng.wang@xxxxxxxxxx
Signed-off-by: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/mm.h | 1 -
mm/page_alloc.c | 13 +------------
2 files changed, 1 insertion(+), 13 deletions(-)
--- a/include/linux/mm.h~mm-kill-find_min_pfn_with_active_regions
+++ a/include/linux/mm.h
@@ -2512,7 +2512,6 @@ extern unsigned long absent_pages_in_ran
unsigned long end_pfn);
extern void get_pfn_range_for_nid(unsigned int nid,
unsigned long *start_pfn, unsigned long *end_pfn);
-extern unsigned long find_min_pfn_with_active_regions(void);
#ifndef CONFIG_NUMA
static inline int early_pfn_to_nid(unsigned long pfn)
--- a/mm/page_alloc.c~mm-kill-find_min_pfn_with_active_regions
+++ a/mm/page_alloc.c
@@ -7917,17 +7917,6 @@ unsigned long __init node_map_pfn_alignm
return ~accl_mask + 1;
}
-/**
- * find_min_pfn_with_active_regions - Find the minimum PFN registered
- *
- * Return: the minimum PFN based on information provided via
- * memblock_set_node().
- */
-unsigned long __init find_min_pfn_with_active_regions(void)
-{
- return PHYS_PFN(memblock_start_of_DRAM());
-}
-
/*
* early_calculate_totalpages()
* Sum pages in active regions for movable zone.
@@ -8220,7 +8209,7 @@ void __init free_area_init(unsigned long
memset(arch_zone_highest_possible_pfn, 0,
sizeof(arch_zone_highest_possible_pfn));
- start_pfn = find_min_pfn_with_active_regions();
+ start_pfn = PHYS_PFN(memblock_start_of_DRAM());
descending = arch_has_descending_max_zone_pfns();
for (i = 0; i < MAX_NR_ZONES; i++) {
_
Patches currently in -mm which might be from wangkefeng.wang@xxxxxxxxxx are
mm-memory-failure-cleanup-try_to_split_thp_page.patch
mm-add-warning-if-__vm_enough_memory-fails.patch
mm-kill-find_min_pfn_with_active_regions.patch
