From b40597561e9325514afe2d80e0a17d365b2b5082 Mon Sep 17 00:00:00 2001
From: Andrew Morton <akpm@linux-foundation.org>
Date: Thu, 25 Oct 2012 12:14:50 +1100
Subject: [PATCH] 
 memory-hotplug-update-mce_bad_pages-when-removing-the-memory-fix

cleanup ifdefs

Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Christoph Lameter <cl@linux.com>
Cc: Dave Hansen <dave@linux.vnet.ibm.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Jiang Liu <liuj97@gmail.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Len Brown <len.brown@intel.com>
Cc: Minchan Kim <minchan.kim@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Wen Congyang <wency@cn.fujitsu.com>
Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
 mm/sparse.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/mm/sparse.c b/mm/sparse.c
index 24072e435bf8..8152952e5014 100644
--- a/mm/sparse.c
+++ b/mm/sparse.c
@@ -788,6 +788,10 @@ static void clear_hwpoisoned_pages(struct page *memmap, int nr_pages)
 		}
 	}
 }
+#else
+static inline void clear_hwpoisoned_pages(struct page *memmap, int nr_pages)
+{
+}
 #endif
 
 void sparse_remove_one_section(struct zone *zone, struct mem_section *ms)
@@ -803,10 +807,7 @@ void sparse_remove_one_section(struct zone *zone, struct mem_section *ms)
 		ms->pageblock_flags = NULL;
 	}
 
-#ifdef CONFIG_MEMORY_FAILURE
 	clear_hwpoisoned_pages(memmap, PAGES_PER_SECTION);
-#endif
-
 	free_section_usemap(memmap, usemap);
 }
 #endif
-- 
2.39.5