sched/numa: Fix comments

Fix a 80 column violation and a PTE vs PMD reference.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/1381141781-10992-4-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 7489884..19dbb08 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1305,7 +1305,7 @@
 	spin_unlock(&mm->page_table_lock);
 	lock_page(page);
 
-	/* Confirm the PTE did not while locked */
+	/* Confirm the PMD did not change while page_table_lock was released */
 	spin_lock(&mm->page_table_lock);
 	if (unlikely(!pmd_same(pmd, *pmdp))) {
 		unlock_page(page);