--- zzzz-none-000/linux-3.10.107/mm/bootmem.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/mm/bootmem.c	2021-02-04 17:41:59.000000000 +0000
@@ -15,10 +15,11 @@
 #include <linux/export.h>
 #include <linux/kmemleak.h>
 #include <linux/range.h>
+#include <linux/crashlog.h>
 #include <linux/memblock.h>
+#include <linux/bug.h>
+#include <linux/io.h>
 
-#include <asm/bug.h>
-#include <asm/io.h>
 #include <asm/processor.h>
 
 #include "internal.h"
@@ -164,7 +165,7 @@
 	end = PFN_DOWN(physaddr + size);
 
 	for (; cursor < end; cursor++) {
-		__free_pages_bootmem(pfn_to_page(cursor), 0);
+		__free_pages_bootmem(pfn_to_page(cursor), cursor, 0);
 		totalram_pages++;
 	}
 }
@@ -172,11 +173,13 @@
 static unsigned long __init free_all_bootmem_core(bootmem_data_t *bdata)
 {
 	struct page *page;
-	unsigned long start, end, pages, count = 0;
+	unsigned long *map, start, end, pages, cur, count = 0;
 
 	if (!bdata->node_bootmem_map)
 		return 0;
 
+	crashlog_init_bootmem(bdata);
+	map = bdata->node_bootmem_map;
 	start = bdata->node_min_pfn;
 	end = bdata->node_low_pfn;
 
@@ -184,10 +187,9 @@
 		bdata - bootmem_node_data, start, end);
 
 	while (start < end) {
-		unsigned long *map, idx, vec;
+		unsigned long idx, vec;
 		unsigned shift;
 
-		map = bdata->node_bootmem_map;
 		idx = start - bdata->node_min_pfn;
 		shift = idx & (BITS_PER_LONG - 1);
 		/*
@@ -210,17 +212,17 @@
 		if (IS_ALIGNED(start, BITS_PER_LONG) && vec == ~0UL) {
 			int order = ilog2(BITS_PER_LONG);
 
-			__free_pages_bootmem(pfn_to_page(start), order);
+			__free_pages_bootmem(pfn_to_page(start), start, order);
 			count += BITS_PER_LONG;
 			start += BITS_PER_LONG;
 		} else {
-			unsigned long cur = start;
+			cur = start;
 
 			start = ALIGN(start + 1, BITS_PER_LONG);
 			while (vec && cur != start) {
 				if (vec & 1) {
 					page = pfn_to_page(cur);
-					__free_pages_bootmem(page, 0);
+					__free_pages_bootmem(page, cur, 0);
 					count++;
 				}
 				vec >>= 1;
@@ -229,45 +231,41 @@
 		}
 	}
 
+	cur = bdata->node_min_pfn;
 	page = virt_to_page(bdata->node_bootmem_map);
 	pages = bdata->node_low_pfn - bdata->node_min_pfn;
 	pages = bootmem_bootmap_pages(pages);
 	count += pages;
 	while (pages--)
-		__free_pages_bootmem(page++, 0);
+		__free_pages_bootmem(page++, cur++, 0);
+	bdata->node_bootmem_map = NULL;
 
 	bdebug("nid=%td released=%lx\n", bdata - bootmem_node_data, count);
 
 	return count;
 }
 
-static void reset_node_lowmem_managed_pages(pg_data_t *pgdat)
+static int reset_managed_pages_done __initdata;
+
+void reset_node_managed_pages(pg_data_t *pgdat)
 {
 	struct zone *z;
 
-	/*
-	 * In free_area_init_core(), highmem zone's managed_pages is set to
-	 * present_pages, and bootmem allocator doesn't allocate from highmem
-	 * zones. So there's no need to recalculate managed_pages because all
-	 * highmem pages will be managed by the buddy system. Here highmem
-	 * zone also includes highmem movable zone.
-	 */
 	for (z = pgdat->node_zones; z < pgdat->node_zones + MAX_NR_ZONES; z++)
-		if (!is_highmem(z))
-			z->managed_pages = 0;
+		z->managed_pages = 0;
 }
 
-/**
- * free_all_bootmem_node - release a node's free pages to the buddy allocator
- * @pgdat: node to be released
- *
- * Returns the number of pages actually released.
- */
-unsigned long __init free_all_bootmem_node(pg_data_t *pgdat)
+void __init reset_all_zones_managed_pages(void)
 {
-	register_page_bootmem_info_node(pgdat);
-	reset_node_lowmem_managed_pages(pgdat);
-	return free_all_bootmem_core(pgdat->bdata);
+	struct pglist_data *pgdat;
+
+	if (reset_managed_pages_done)
+		return;
+
+	for_each_online_pgdat(pgdat)
+		reset_node_managed_pages(pgdat);
+
+	reset_managed_pages_done = 1;
 }
 
 /**
@@ -279,14 +277,14 @@
 {
 	unsigned long total_pages = 0;
 	bootmem_data_t *bdata;
-	struct pglist_data *pgdat;
 
-	for_each_online_pgdat(pgdat)
-		reset_node_lowmem_managed_pages(pgdat);
+	reset_all_zones_managed_pages();
 
 	list_for_each_entry(bdata, &bdata_list, list)
 		total_pages += free_all_bootmem_core(bdata);
 
+	totalram_pages += total_pages;
+
 	return total_pages;
 }
 
@@ -299,6 +297,9 @@
 		sidx + bdata->node_min_pfn,
 		eidx + bdata->node_min_pfn);
 
+	if (WARN_ON(bdata->node_bootmem_map == NULL))
+		return;
+
 	if (bdata->hint_idx > sidx)
 		bdata->hint_idx = sidx;
 
@@ -319,6 +320,9 @@
 		eidx + bdata->node_min_pfn,
 		flags);
 
+	if (WARN_ON(bdata->node_bootmem_map == NULL))
+		return 0;
+
 	for (idx = sidx; idx < eidx; idx++)
 		if (test_and_set_bit(idx, bdata->node_bootmem_map)) {
 			if (exclusive) {
@@ -791,7 +795,7 @@
 		return kzalloc_node(size, GFP_NOWAIT, pgdat->node_id);
 
 	/* update goal according ...MAX_DMA32_PFN */
-	end_pfn = pgdat->node_start_pfn + pgdat->node_spanned_pages;
+	end_pfn = pgdat_end_pfn(pgdat);
 
 	if (end_pfn > MAX_DMA32_PFN + (128 >> (20 - PAGE_SHIFT)) &&
 	    (goal >> PAGE_SHIFT) < MAX_DMA32_PFN) {