Subject: [PATCH] mm: fix goal calculating with usemap

PAGE_SECTION_MASK should be used with pfn instead of pa.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>

diff --git a/mm/sparse.c b/mm/sparse.c
index 6a4bf91..fd00928 100644
--- a/mm/sparse.c
+++ b/mm/sparse.c
@@ -287,7 +287,7 @@ sparse_early_usemaps_alloc_pgdat_section(struct pglist_data *pgdat,
 	 * from the same section as the pgdat where possible to avoid
 	 * this problem.
 	 */
-	goal = __pa(pgdat) & PAGE_SECTION_MASK;
+	goal = ((__pa(pgdat) >> PAGE_SHIFT) & PAGE_SECTION_MASK) << PAGE_SHIFT;
 	host_pgdat = NODE_DATA(early_pfn_to_nid(goal >> PAGE_SHIFT));
 	return __alloc_bootmem_node_nopanic(host_pgdat, size,
 					    SMP_CACHE_BYTES, goal);