X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=mm%2Fbootmem.c;h=319a79bce7cd5e23314a91aca0fa87701934f7fe;hb=6b312c0e6e2f44b020e12953d1dd37eed60e3609;hp=e8fb927392b9ac02b4ad16878847551d103a1b43;hpb=c92758ceda477b1333fde35327cfa867dcc47bd1;p=linux-2.6-omap-h63xx.git

diff --git a/mm/bootmem.c b/mm/bootmem.c
index e8fb927392b..319a79bce7c 100644
--- a/mm/bootmem.c
+++ b/mm/bootmem.c
@@ -36,6 +36,8 @@ static LIST_HEAD(bdata_list);
 unsigned long saved_max_pfn;
 #endif
 
+bootmem_data_t bootmem_node_data[MAX_NUMNODES] __initdata;
+
 /* return the number of _pages_ that will be allocated for the boot bitmap */
 unsigned long __init bootmem_bootmap_pages(unsigned long pages)
 {
@@ -91,6 +93,7 @@ static unsigned long __init init_bootmem_core(pg_data_t *pgdat,
 	bootmem_data_t *bdata = pgdat->bdata;
 	unsigned long mapsize;
 
+	mminit_validate_memmodel_limits(&start, &end);
 	bdata->node_bootmem_map = phys_to_virt(PFN_PHYS(mapstart));
 	bdata->node_boot_start = PFN_PHYS(start);
 	bdata->node_low_pfn = end;
@@ -374,7 +377,7 @@ static unsigned long __init free_all_bootmem_core(pg_data_t *pgdat)
 	struct page *page;
 	unsigned long pfn;
 	bootmem_data_t *bdata = pgdat->bdata;
-	unsigned long i, count, total = 0;
+	unsigned long i, count;
 	unsigned long idx;
 	unsigned long *map; 
 	int gofast = 0;
@@ -386,10 +389,13 @@ static unsigned long __init free_all_bootmem_core(pg_data_t *pgdat)
 	pfn = PFN_DOWN(bdata->node_boot_start);
 	idx = bdata->node_low_pfn - pfn;
 	map = bdata->node_bootmem_map;
-	/* Check physaddr is O(LOG2(BITS_PER_LONG)) page aligned */
-	if (bdata->node_boot_start == 0 ||
-	    ffs(bdata->node_boot_start) - PAGE_SHIFT > ffs(BITS_PER_LONG))
+	/*
+	 * Check if we are aligned to BITS_PER_LONG pages.  If so, we might
+	 * be able to free page orders of that size at once.
+	 */
+	if (!(pfn & (BITS_PER_LONG-1)))
 		gofast = 1;
+
 	for (i = 0; i < idx; ) {
 		unsigned long v = ~map[i / BITS_PER_LONG];
 
@@ -417,23 +423,19 @@ static unsigned long __init free_all_bootmem_core(pg_data_t *pgdat)
 		}
 		pfn += BITS_PER_LONG;
 	}
-	total += count;
 
 	/*
 	 * Now free the allocator bitmap itself, it's not
 	 * needed anymore:
 	 */
 	page = virt_to_page(bdata->node_bootmem_map);
-	count = 0;
 	idx = (get_mapsize(bdata) + PAGE_SIZE-1) >> PAGE_SHIFT;
-	for (i = 0; i < idx; i++, page++) {
+	for (i = 0; i < idx; i++, page++)
 		__free_pages_bootmem(page, 0);
-		count++;
-	}
-	total += count;
+	count += i;
 	bdata->node_bootmem_map = NULL;
 
-	return total;
+	return count;
 }
 
 unsigned long __init init_bootmem_node(pg_data_t *pgdat, unsigned long freepfn,
@@ -442,15 +444,17 @@ unsigned long __init init_bootmem_node(pg_data_t *pgdat, unsigned long freepfn,
 	return init_bootmem_core(pgdat, freepfn, startpfn, endpfn);
 }
 
-void __init reserve_bootmem_node(pg_data_t *pgdat, unsigned long physaddr,
+int __init reserve_bootmem_node(pg_data_t *pgdat, unsigned long physaddr,
 				 unsigned long size, int flags)
 {
 	int ret;
 
 	ret = can_reserve_bootmem_core(pgdat->bdata, physaddr, size, flags);
 	if (ret < 0)
-		return;
+		return -ENOMEM;
 	reserve_bootmem_core(pgdat->bdata, physaddr, size, flags);
+
+	return 0;
 }
 
 void __init free_bootmem_node(pg_data_t *pgdat, unsigned long physaddr,