From 9e8b21d3157a48a6600aaba1ab973570ec68dbc7 Mon Sep 17 00:00:00 2001
From: Wu Fengguang <fengguang.wu@intel.com>
Date: Wed, 16 Dec 2009 12:19:58 +0100
Subject: [PATCH] --- yaml --- r: 177621 b: refs/heads/master c:
 95d01fc664b9476e0d18e3d745bb209a42a33588 h: refs/heads/master i:   177619:
 dad62c5a3831a863fa973888138133190eae351d v: v3

---
 [refs]                    |  2 +-
 trunk/mm/memory-failure.c | 14 ++++----------
 2 files changed, 5 insertions(+), 11 deletions(-)

diff --git a/[refs] b/[refs]
index 26c9f511a86c..db57c383ab0a 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: dc2a1cbf7d862e9d0abea1d1b4c8712dfbb5a398
+refs/heads/master: 95d01fc664b9476e0d18e3d745bb209a42a33588
diff --git a/trunk/mm/memory-failure.c b/trunk/mm/memory-failure.c
index 9a285f8cdbe1..676ab394200e 100644
--- a/trunk/mm/memory-failure.c
+++ b/trunk/mm/memory-failure.c
@@ -400,14 +400,6 @@ static int me_unknown(struct page *p, unsigned long pfn)
 	return FAILED;
 }
 
-/*
- * Free memory
- */
-static int me_free(struct page *p, unsigned long pfn)
-{
-	return DELAYED;
-}
-
 /*
  * Clean (or cleaned) page cache page.
  */
@@ -604,7 +596,6 @@ static int me_huge_page(struct page *p, unsigned long pfn)
 #define tail		(1UL << PG_tail)
 #define compound	(1UL << PG_compound)
 #define slab		(1UL << PG_slab)
-#define buddy		(1UL << PG_buddy)
 #define reserved	(1UL << PG_reserved)
 
 static struct page_state {
@@ -614,7 +605,10 @@ static struct page_state {
 	int (*action)(struct page *p, unsigned long pfn);
 } error_states[] = {
 	{ reserved,	reserved,	"reserved kernel",	me_ignore },
-	{ buddy,	buddy,		"free kernel",	me_free },
+	/*
+	 * free pages are specially detected outside this table:
+	 * PG_buddy pages only make a small fraction of all free pages.
+	 */
 
 	/*
 	 * Could in theory check if slab page is free or if we can drop