[PATCH] initialise total_memory() earlier

Initialise total_memory earlier in boot.  Because if for some reason we run
page reclaim early in boot, we don't want total_memory to be zero when we use
it as a divisor.

And rename total_memory to vm_total_pages to avoid naming clashes with
architectures.

Cc: Yasunori Goto <y-goto@jp.fujitsu.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Martin Bligh <mbligh@google.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 3 insertions, 3 deletions

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 5af33186a25f..71a0b2a23f5b 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1725,9 +1725,9 @@ void __meminit build_all_zonelists(void)
                 stop_machine_run(__build_all_zonelists, NULL, NR_CPUS);
                 /* cpuset refresh routine should be here */
         }
-
-        printk("Built %i zonelists\n", num_online_nodes());
-
+        vm_total_pages = nr_free_pagecache_pages();
+        printk("Built %i zonelists.  Total pages: %ld\n",
+                        num_online_nodes(), vm_total_pages);
 }
 
 /*