[PATCH] mm mremap freeze

[Hugh Dickins]

mremap's move_one_page tried to lock src_page twice
#ifndef CONFIG_SHAREPTE (do I hear you hissing my disloyalty?)

--- 2.5.44-mm2/mm/mremap.c	Mon Oct 21 12:57:53 2002
+++ linux/mm/mremap.c	Mon Oct 21 16:46:58 2002
@@ -43,8 +43,8 @@
 		goto out_unlock;
 
 	src_page = pmd_page(*src_pmd);
-	pte_page_lock(src_page);
 #ifdef CONFIG_SHAREPTE
+	pte_page_lock(src_page);
 	/*
 	 * Unshare if necessary.  We unmap the return
 	 * pointer because we may need to map it nested later.