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-rw-r--r--mm/page_alloc.c86
1 files changed, 51 insertions, 35 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index f12ad1836abe..2a362c52fdf4 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -21,6 +21,7 @@
#include <linux/pagemap.h>
#include <linux/jiffies.h>
#include <linux/bootmem.h>
+#include <linux/memblock.h>
#include <linux/compiler.h>
#include <linux/kernel.h>
#include <linux/kmemcheck.h>
@@ -3636,6 +3637,41 @@ void __init free_bootmem_with_active_regions(int nid,
}
}
+#ifdef CONFIG_HAVE_MEMBLOCK
+u64 __init find_memory_core_early(int nid, u64 size, u64 align,
+ u64 goal, u64 limit)
+{
+ int i;
+
+ /* Need to go over early_node_map to find out good range for node */
+ for_each_active_range_index_in_nid(i, nid) {
+ u64 addr;
+ u64 ei_start, ei_last;
+ u64 final_start, final_end;
+
+ ei_last = early_node_map[i].end_pfn;
+ ei_last <<= PAGE_SHIFT;
+ ei_start = early_node_map[i].start_pfn;
+ ei_start <<= PAGE_SHIFT;
+
+ final_start = max(ei_start, goal);
+ final_end = min(ei_last, limit);
+
+ if (final_start >= final_end)
+ continue;
+
+ addr = memblock_find_in_range(final_start, final_end, size, align);
+
+ if (addr == MEMBLOCK_ERROR)
+ continue;
+
+ return addr;
+ }
+
+ return MEMBLOCK_ERROR;
+}
+#endif
+
int __init add_from_early_node_map(struct range *range, int az,
int nr_range, int nid)
{
@@ -3655,46 +3691,26 @@ int __init add_from_early_node_map(struct range *range, int az,
void * __init __alloc_memory_core_early(int nid, u64 size, u64 align,
u64 goal, u64 limit)
{
- int i;
void *ptr;
+ u64 addr;
- if (limit > get_max_mapped())
- limit = get_max_mapped();
-
- /* need to go over early_node_map to find out good range for node */
- for_each_active_range_index_in_nid(i, nid) {
- u64 addr;
- u64 ei_start, ei_last;
-
- ei_last = early_node_map[i].end_pfn;
- ei_last <<= PAGE_SHIFT;
- ei_start = early_node_map[i].start_pfn;
- ei_start <<= PAGE_SHIFT;
- addr = find_early_area(ei_start, ei_last,
- goal, limit, size, align);
-
- if (addr == -1ULL)
- continue;
+ if (limit > memblock.current_limit)
+ limit = memblock.current_limit;
-#if 0
- printk(KERN_DEBUG "alloc (nid=%d %llx - %llx) (%llx - %llx) %llx %llx => %llx\n",
- nid,
- ei_start, ei_last, goal, limit, size,
- align, addr);
-#endif
+ addr = find_memory_core_early(nid, size, align, goal, limit);
- ptr = phys_to_virt(addr);
- memset(ptr, 0, size);
- reserve_early_without_check(addr, addr + size, "BOOTMEM");
- /*
- * The min_count is set to 0 so that bootmem allocated blocks
- * are never reported as leaks.
- */
- kmemleak_alloc(ptr, size, 0, 0);
- return ptr;
- }
+ if (addr == MEMBLOCK_ERROR)
+ return NULL;
- return NULL;
+ ptr = phys_to_virt(addr);
+ memset(ptr, 0, size);
+ memblock_x86_reserve_range(addr, addr + size, "BOOTMEM");
+ /*
+ * The min_count is set to 0 so that bootmem allocated blocks
+ * are never reported as leaks.
+ */
+ kmemleak_alloc(ptr, size, 0, 0);
+ return ptr;
}
#endif