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-rw-r--r--arch/x86/mm/highmem_32.c6
-rw-r--r--arch/x86/mm/init.c14
-rw-r--r--arch/x86/mm/init_32.c32
-rw-r--r--arch/x86/mm/init_64.c45
-rw-r--r--arch/x86/mm/numa_32.c2
5 files changed, 18 insertions, 81 deletions
diff --git a/arch/x86/mm/highmem_32.c b/arch/x86/mm/highmem_32.c
index 252b8f5489ba..4500142bc4aa 100644
--- a/arch/x86/mm/highmem_32.c
+++ b/arch/x86/mm/highmem_32.c
@@ -1,6 +1,7 @@
#include <linux/highmem.h>
#include <linux/module.h>
#include <linux/swap.h> /* for totalram_pages */
+#include <linux/bootmem.h>
void *kmap(struct page *page)
{
@@ -121,6 +122,11 @@ void __init set_highmem_pages_init(void)
struct zone *zone;
int nid;
+ /*
+ * Explicitly reset zone->managed_pages because set_highmem_pages_init()
+ * is invoked before free_all_bootmem()
+ */
+ reset_all_zones_managed_pages();
for_each_zone(zone) {
unsigned long zone_start_pfn, zone_end_pfn;
diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index 1f34e9219775..2ec29ac78ae6 100644
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -494,7 +494,6 @@ int devmem_is_allowed(unsigned long pagenr)
void free_init_pages(char *what, unsigned long begin, unsigned long end)
{
- unsigned long addr;
unsigned long begin_aligned, end_aligned;
/* Make sure boundaries are page aligned */
@@ -509,8 +508,6 @@ void free_init_pages(char *what, unsigned long begin, unsigned long end)
if (begin >= end)
return;
- addr = begin;
-
/*
* If debugging page accesses then do not free this memory but
* mark them not present - any buggy init-section access will
@@ -529,18 +526,13 @@ void free_init_pages(char *what, unsigned long begin, unsigned long end)
set_memory_nx(begin, (end - begin) >> PAGE_SHIFT);
set_memory_rw(begin, (end - begin) >> PAGE_SHIFT);
- printk(KERN_INFO "Freeing %s: %luk freed\n", what, (end - begin) >> 10);
-
- for (; addr < end; addr += PAGE_SIZE) {
- memset((void *)addr, POISON_FREE_INITMEM, PAGE_SIZE);
- free_reserved_page(virt_to_page(addr));
- }
+ free_reserved_area((void *)begin, (void *)end, POISON_FREE_INITMEM, what);
#endif
}
void free_initmem(void)
{
- free_init_pages("unused kernel memory",
+ free_init_pages("unused kernel",
(unsigned long)(&__init_begin),
(unsigned long)(&__init_end));
}
@@ -566,7 +558,7 @@ void __init free_initrd_mem(unsigned long start, unsigned long end)
* - relocate_initrd()
* So here We can do PAGE_ALIGN() safely to get partial page to be freed
*/
- free_init_pages("initrd memory", start, PAGE_ALIGN(end));
+ free_init_pages("initrd", start, PAGE_ALIGN(end));
}
#endif
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index 3ac7e319918d..4287f1ffba7e 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -660,10 +660,8 @@ void __init initmem_init(void)
highstart_pfn = max_low_pfn;
printk(KERN_NOTICE "%ldMB HIGHMEM available.\n",
pages_to_mb(highend_pfn - highstart_pfn));
- num_physpages = highend_pfn;
high_memory = (void *) __va(highstart_pfn * PAGE_SIZE - 1) + 1;
#else
- num_physpages = max_low_pfn;
high_memory = (void *) __va(max_low_pfn * PAGE_SIZE - 1) + 1;
#endif
@@ -671,7 +669,7 @@ void __init initmem_init(void)
sparse_memory_present_with_active_regions(0);
#ifdef CONFIG_FLATMEM
- max_mapnr = num_physpages;
+ max_mapnr = IS_ENABLED(CONFIG_HIGHMEM) ? highend_pfn : max_low_pfn;
#endif
__vmalloc_start_set = true;
@@ -739,9 +737,6 @@ static void __init test_wp_bit(void)
void __init mem_init(void)
{
- int codesize, reservedpages, datasize, initsize;
- int tmp;
-
pci_iommu_alloc();
#ifdef CONFIG_FLATMEM
@@ -759,32 +754,11 @@ void __init mem_init(void)
set_highmem_pages_init();
/* this will put all low memory onto the freelists */
- totalram_pages += free_all_bootmem();
-
- reservedpages = 0;
- for (tmp = 0; tmp < max_low_pfn; tmp++)
- /*
- * Only count reserved RAM pages:
- */
- if (page_is_ram(tmp) && PageReserved(pfn_to_page(tmp)))
- reservedpages++;
+ free_all_bootmem();
after_bootmem = 1;
- codesize = (unsigned long) &_etext - (unsigned long) &_text;
- datasize = (unsigned long) &_edata - (unsigned long) &_etext;
- initsize = (unsigned long) &__init_end - (unsigned long) &__init_begin;
-
- printk(KERN_INFO "Memory: %luk/%luk available (%dk kernel code, "
- "%dk reserved, %dk data, %dk init, %ldk highmem)\n",
- nr_free_pages() << (PAGE_SHIFT-10),
- num_physpages << (PAGE_SHIFT-10),
- codesize >> 10,
- reservedpages << (PAGE_SHIFT-10),
- datasize >> 10,
- initsize >> 10,
- totalhigh_pages << (PAGE_SHIFT-10));
-
+ mem_init_print_info(NULL);
printk(KERN_INFO "virtual kernel memory layout:\n"
" fixmap : 0x%08lx - 0x%08lx (%4ld kB)\n"
#ifdef CONFIG_HIGHMEM
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index b3940b6b4d7e..104d56a9245f 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -712,36 +712,22 @@ EXPORT_SYMBOL_GPL(arch_add_memory);
static void __meminit free_pagetable(struct page *page, int order)
{
- struct zone *zone;
- bool bootmem = false;
unsigned long magic;
unsigned int nr_pages = 1 << order;
/* bootmem page has reserved flag */
if (PageReserved(page)) {
__ClearPageReserved(page);
- bootmem = true;
magic = (unsigned long)page->lru.next;
if (magic == SECTION_INFO || magic == MIX_SECTION_INFO) {
while (nr_pages--)
put_page_bootmem(page++);
} else
- __free_pages_bootmem(page, order);
+ while (nr_pages--)
+ free_reserved_page(page++);
} else
free_pages((unsigned long)page_address(page), order);
-
- /*
- * SECTION_INFO pages and MIX_SECTION_INFO pages
- * are all allocated by bootmem.
- */
- if (bootmem) {
- zone = page_zone(page);
- zone_span_writelock(zone);
- zone->present_pages += nr_pages;
- zone_span_writeunlock(zone);
- totalram_pages += nr_pages;
- }
}
static void __meminit free_pte_table(pte_t *pte_start, pmd_t *pmd)
@@ -1058,9 +1044,6 @@ static void __init register_page_bootmem_info(void)
void __init mem_init(void)
{
- long codesize, reservedpages, datasize, initsize;
- unsigned long absent_pages;
-
pci_iommu_alloc();
/* clear_bss() already clear the empty_zero_page */
@@ -1068,29 +1051,14 @@ void __init mem_init(void)
register_page_bootmem_info();
/* this will put all memory onto the freelists */
- totalram_pages = free_all_bootmem();
-
- absent_pages = absent_pages_in_range(0, max_pfn);
- reservedpages = max_pfn - totalram_pages - absent_pages;
+ free_all_bootmem();
after_bootmem = 1;
- codesize = (unsigned long) &_etext - (unsigned long) &_text;
- datasize = (unsigned long) &_edata - (unsigned long) &_etext;
- initsize = (unsigned long) &__init_end - (unsigned long) &__init_begin;
-
/* Register memory areas for /proc/kcore */
kclist_add(&kcore_vsyscall, (void *)VSYSCALL_START,
VSYSCALL_END - VSYSCALL_START, KCORE_OTHER);
- printk(KERN_INFO "Memory: %luk/%luk available (%ldk kernel code, "
- "%ldk absent, %ldk reserved, %ldk data, %ldk init)\n",
- nr_free_pages() << (PAGE_SHIFT-10),
- max_pfn << (PAGE_SHIFT-10),
- codesize >> 10,
- absent_pages << (PAGE_SHIFT-10),
- reservedpages << (PAGE_SHIFT-10),
- datasize >> 10,
- initsize >> 10);
+ mem_init_print_info(NULL);
}
#ifdef CONFIG_DEBUG_RODATA
@@ -1166,11 +1134,10 @@ void mark_rodata_ro(void)
set_memory_ro(start, (end-start) >> PAGE_SHIFT);
#endif
- free_init_pages("unused kernel memory",
+ free_init_pages("unused kernel",
(unsigned long) __va(__pa_symbol(text_end)),
(unsigned long) __va(__pa_symbol(rodata_start)));
-
- free_init_pages("unused kernel memory",
+ free_init_pages("unused kernel",
(unsigned long) __va(__pa_symbol(rodata_end)),
(unsigned long) __va(__pa_symbol(_sdata)));
}
diff --git a/arch/x86/mm/numa_32.c b/arch/x86/mm/numa_32.c
index 73a6d7395bd3..0342d27ca798 100644
--- a/arch/x86/mm/numa_32.c
+++ b/arch/x86/mm/numa_32.c
@@ -83,10 +83,8 @@ void __init initmem_init(void)
highstart_pfn = max_low_pfn;
printk(KERN_NOTICE "%ldMB HIGHMEM available.\n",
pages_to_mb(highend_pfn - highstart_pfn));
- num_physpages = highend_pfn;
high_memory = (void *) __va(highstart_pfn * PAGE_SIZE - 1) + 1;
#else
- num_physpages = max_low_pfn;
high_memory = (void *) __va(max_low_pfn * PAGE_SIZE - 1) + 1;
#endif
printk(KERN_NOTICE "%ldMB LOWMEM available.\n",
generated by cgit v1.2.3 (git 2.39.1) at 2024-08-14 12:32:26 +0000