kexec boot regression

Commit Message

Yinghai Lu Dec. 15, 2009, 9:43 p.m. UTC

None

Patch

Index: linux-2.6/arch/x86/mm/srat_32.c
===================================================================
--- linux-2.6.orig/arch/x86/mm/srat_32.c
+++ linux-2.6/arch/x86/mm/srat_32.c
@@ -267,6 +267,8 @@  int __init get_memcfg_from_srat(void)
 		e820_register_active_regions(chunk->nid, chunk->start_pfn,
 					     min(chunk->end_pfn, max_pfn));
 	}
+	/* for out of order entries in SRAT */
+	sort_node_map();
 
 	for_each_online_node(nid) {
 		unsigned long start = node_start_pfn[nid];
Index: linux-2.6/arch/x86/mm/srat_64.c
===================================================================
--- linux-2.6.orig/arch/x86/mm/srat_64.c
+++ linux-2.6/arch/x86/mm/srat_64.c
@@ -317,7 +317,7 @@  static int __init nodes_cover_memory(con
 		unsigned long s = nodes[i].start >> PAGE_SHIFT;
 		unsigned long e = nodes[i].end >> PAGE_SHIFT;
 		pxmram += e - s;
-		pxmram -= absent_pages_in_range(s, e);
+		pxmram -= __absent_pages_in_range(i, s, e);
 		if ((long)pxmram < 0)
 			pxmram = 0;
 	}
@@ -373,6 +373,8 @@  int __init acpi_scan_nodes(unsigned long
 	for_each_node_mask(i, nodes_parsed)
 		e820_register_active_regions(i, nodes[i].start >> PAGE_SHIFT,
 						nodes[i].end >> PAGE_SHIFT);
+	/* for out of order entries in SRAT */
+	sort_node_map();
 	if (!nodes_cover_memory(nodes)) {
 		bad_srat();
 		return -1;
Index: linux-2.6/include/linux/mm.h
===================================================================
--- linux-2.6.orig/include/linux/mm.h
+++ linux-2.6/include/linux/mm.h
@@ -1022,6 +1022,9 @@  extern void add_active_range(unsigned in
 extern void remove_active_range(unsigned int nid, unsigned long start_pfn,
 					unsigned long end_pfn);
 extern void remove_all_active_ranges(void);
+void sort_node_map(void);
+unsigned long __absent_pages_in_range(int nid, unsigned long start_pfn,
+						unsigned long end_pfn);
 extern unsigned long absent_pages_in_range(unsigned long start_pfn,
 						unsigned long end_pfn);
 extern void get_pfn_range_for_nid(unsigned int nid,
Index: linux-2.6/mm/page_alloc.c
===================================================================
--- linux-2.6.orig/mm/page_alloc.c
+++ linux-2.6/mm/page_alloc.c
@@ -3573,7 +3573,7 @@  static unsigned long __meminit zone_span
  * Return the number of holes in a range on a node. If nid is MAX_NUMNODES,
  * then all holes in the requested range will be accounted for.
  */
-static unsigned long __meminit __absent_pages_in_range(int nid,
+unsigned long __meminit __absent_pages_in_range(int nid,
 				unsigned long range_start_pfn,
 				unsigned long range_end_pfn)
 {
@@ -4102,7 +4102,7 @@  static int __init cmp_node_active_region
 }
 
 /* sort the node_map by start_pfn */
-static void __init sort_node_map(void)
+void __init sort_node_map(void)
 {
 	sort(early_node_map, (size_t)nr_nodemap_entries,
 			sizeof(struct node_active_region),