sparsemem: record when a section has a valid mem_map

[linux-2.6-omap-h63xx.git] / mm / sparse.c

diff --git a/mm/sparse.c b/mm/sparse.c
index e8f36e4796d0e51ce9bc7b62b78204eddd0c57c3..54f3940406cba1e6bf980e273e171c856296d148 100644 (file)
--- a/mm/sparse.c
+++ b/mm/sparse.c
@@ -176,7 +176,7 @@ unsigned long __init node_memmap_size_bytes(int nid, unsigned long start_pfn,
                if (nid != early_pfn_to_nid(pfn))
                        continue;
 
-               if (pfn_valid(pfn))
+               if (pfn_present(pfn))
                        nr_pages += PAGES_PER_SECTION;
        }
 
@@ -206,11 +206,12 @@ struct page *sparse_decode_mem_map(unsigned long coded_mem_map, unsigned long pn
 static int __meminit sparse_init_one_section(struct mem_section *ms,
                unsigned long pnum, struct page *mem_map)
 {
-       if (!valid_section(ms))
+       if (!present_section(ms))
                return -EINVAL;
 
        ms->section_mem_map &= ~SECTION_MAP_MASK;
-       ms->section_mem_map |= sparse_encode_mem_map(mem_map, pnum);
+       ms->section_mem_map |= sparse_encode_mem_map(mem_map, pnum) |
+                                                       SECTION_HAS_MEM_MAP;
 
        return 1;
 }
@@ -256,7 +257,7 @@ void __init sparse_init(void)
        struct page *map;
 
        for (pnum = 0; pnum < NR_MEM_SECTIONS; pnum++) {
-               if (!valid_section_nr(pnum))
+               if (!present_section_nr(pnum))
                        continue;
 
                map = sparse_early_mem_map_alloc(pnum);