Revert "x86-64: Reverse order of bootmem lists"

As requested by Thomas Gleixner <tglx@linutronix.de>:

  "5d3d0f7704ed0bc7eaca0501eeae3e5da1ea6c87 breaks a couple of ARM
   boards, which depend on the historical bootmem allocation order.
   There is a cleaner solution around to remove the pgdat list
   completely, but this is a topic for post 2.6.14

   Andi signalled ACK already."

Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 3 insertions, 11 deletions

diff --git a/mm/bootmem.c b/mm/bootmem.c
index 8ec4e4c2a179..c1330cc19783 100644
--- a/mm/bootmem.c
+++ b/mm/bootmem.c
@@ -61,17 +61,9 @@ static unsigned long __init init_bootmem_core (pg_data_t *pgdat,
 {
         bootmem_data_t *bdata = pgdat->bdata;
         unsigned long mapsize = ((end - start)+7)/8;
-        static struct pglist_data *pgdat_last;
-
-        pgdat->pgdat_next = NULL;
-        /* Add new nodes last so that bootmem always starts
-           searching in the first nodes, not the last ones */
-        if (pgdat_last)
-                pgdat_last->pgdat_next = pgdat;
-        else {
-                pgdat_list = pgdat;     
-                pgdat_last = pgdat;
-        }
+
+        pgdat->pgdat_next = pgdat_list;
+        pgdat_list = pgdat;
 
         mapsize = ALIGN(mapsize, sizeof(long));
         bdata->node_bootmem_map = phys_to_virt(mapstart << PAGE_SHIFT);