x86: rename find_max_pfn() to propagate_e820_map()

this function doesnt just 'find' the max_pfn - it also has
other side-effects such as registering sparse memory maps.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/arch/x86/kernel/e820_32.c b/arch/x86/kernel/e820_32.c
index 0240cd7..ed733e7 100644
--- a/arch/x86/kernel/e820_32.c
+++ b/arch/x86/kernel/e820_32.c
@@ -475,7 +475,7 @@
 /*
  * Find the highest page frame number we have available
  */
-void __init find_max_pfn(void)
+void __init propagate_e820_map(void)
 {
 	int i;
 
@@ -704,7 +704,7 @@
 		 * size before original memory map is
 		 * reset.
 		 */
-		find_max_pfn();
+		propagate_e820_map();
 		saved_max_pfn = max_pfn;
 #endif
 		e820.nr_map = 0;
diff --git a/arch/x86/kernel/setup_32.c b/arch/x86/kernel/setup_32.c
index 5b0bffb..1c4799e 100644
--- a/arch/x86/kernel/setup_32.c
+++ b/arch/x86/kernel/setup_32.c
@@ -812,10 +812,10 @@
 		efi_init();
 
 	/* update e820 for memory not covered by WB MTRRs */
-	find_max_pfn();
+	propagate_e820_map();
 	mtrr_bp_init();
 	if (mtrr_trim_uncached_memory(max_pfn))
-		find_max_pfn();
+		propagate_e820_map();
 
 	max_low_pfn = setup_memory();