x86: fix warning about nodeid

Impact: cleanup

Ingo found there warning about nodeid with some configs.

try to use for_each_online_node for non numa too. in that case
nodeid will be 0.

also move out boundary checking from setup_node_bootmem(), so
non-numa config will not check it.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
LKML-Reference: <49B03069.80001@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 14 insertions, 9 deletions

diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index 2966c6b8d304..db81e9a8556b 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -806,11 +806,6 @@ static unsigned long __init setup_node_bootmem(int nodeid,
 {
         unsigned long bootmap_size;
 
-        if (start_pfn > max_low_pfn)
-                return bootmap;
-        if (end_pfn > max_low_pfn)
-                end_pfn = max_low_pfn;
-
         /* don't touch min_low_pfn */
         bootmap_size = init_bootmem_node(NODE_DATA(nodeid),
                                          bootmap >> PAGE_SHIFT,
@@ -843,13 +838,23 @@ void __init setup_bootmem_allocator(void)
                  max_pfn_mapped<<PAGE_SHIFT);
         printk(KERN_INFO "  low ram: 0 - %08lx\n", max_low_pfn<<PAGE_SHIFT);
 
+        for_each_online_node(nodeid) {
+                 unsigned long start_pfn, end_pfn;
+
 #ifdef CONFIG_NEED_MULTIPLE_NODES
-        for_each_online_node(nodeid)
-                bootmap = setup_node_bootmem(nodeid, node_start_pfn[nodeid],
-                                        node_end_pfn[nodeid], bootmap);
+                start_pfn = node_start_pfn[nodeid];
+                end_pfn = node_end_pfn[nodeid];
+                if (start_pfn > max_low_pfn)
+                        continue;
+                if (end_pfn > max_low_pfn)
+                        end_pfn = max_low_pfn;
 #else
-        bootmap = setup_node_bootmem(0, 0, max_low_pfn, bootmap);
+                start_pfn = 0;
+                end_pfn = max_low_pfn;
 #endif
+                bootmap = setup_node_bootmem(nodeid, start_pfn, end_pfn,
+                                                 bootmap);
+        }
 
         after_bootmem = 1;
 }