From: Linus Torvalds <torvalds@g5.osdl.org>
Date: Fri, 30 Sep 2005 19:38:27 +0000 (-0700)
Subject: Revert "x86-64: Reverse order of bootmem lists"
X-Git-Tag: v2.6.14-rc3~27
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6e3254c4e2927c117044a02acf5f5b56e1373053;p=linux-2.6

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>
---

diff --git a/mm/bootmem.c b/mm/bootmem.c
index 8ec4e4c2a1..c1330cc197 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);