diff options
Diffstat (limited to 'mm/bootmem.c')
| -rw-r--r-- | mm/bootmem.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/mm/bootmem.c b/mm/bootmem.c index 260e703850d..f82f7aebbee 100644 --- a/mm/bootmem.c +++ b/mm/bootmem.c @@ -256,6 +256,7 @@ found: 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 idx; @@ -266,7 +267,7 @@ static unsigned long __init free_all_bootmem_core(pg_data_t *pgdat) count = 0; /* first extant page of the node */ - page = virt_to_page(phys_to_virt(bdata->node_boot_start)); + pfn = bdata->node_boot_start >> PAGE_SHIFT; idx = bdata->node_low_pfn - (bdata->node_boot_start >> PAGE_SHIFT); map = bdata->node_bootmem_map; /* Check physaddr is O(LOG2(BITS_PER_LONG)) page aligned */ @@ -275,9 +276,11 @@ static unsigned long __init free_all_bootmem_core(pg_data_t *pgdat) gofast = 1; for (i = 0; i < idx; ) { unsigned long v = ~map[i / BITS_PER_LONG]; + if (gofast && v == ~0UL) { int j, order; + page = pfn_to_page(pfn); count += BITS_PER_LONG; __ClearPageReserved(page); order = ffs(BITS_PER_LONG) - 1; @@ -292,6 +295,8 @@ static unsigned long __init free_all_bootmem_core(pg_data_t *pgdat) page += BITS_PER_LONG; } else if (v) { unsigned long m; + + page = pfn_to_page(pfn); for (m = 1; m && i < idx; m<<=1, page++, i++) { if (v & m) { count++; @@ -302,8 +307,8 @@ static unsigned long __init free_all_bootmem_core(pg_data_t *pgdat) } } else { i+=BITS_PER_LONG; - page += BITS_PER_LONG; } + pfn += BITS_PER_LONG; } total += count; |