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authorPaul Mundt <lethal@linux-sh.org>2007-07-20 00:31:44 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-20 08:44:19 -0700
commite228929bc257b963523ed75aa60d2ad77ece2189 (patch)
treed72cf8e6d8a126792565549527efc2c9a6fcdcbe /mm
parent8d1b87530e7df5c9541a69910ef7f786f034eca0 (diff)
downloadlinux-2.6.34-ux500-e228929bc257b963523ed75aa60d2ad77ece2189.tar.gz
mm: fix memory hotplug oops from ZONE_MOVABLE changes.
zone_movable_pfn is presently marked as __initdata and referenced from adjust_zone_range_for_zone_movable(), which in turn is referenced by zone_spanned_pages_in_node(). Both of these are __meminit annotated. When memory hotplug is enabled, this will oops on a hot-add, due to zone_movable_pfn having been freed. __meminitdata annotation gives the desired behaviour. This will only impact platforms that enable both memory hotplug and ARCH_POPULATES_NODE_MAP. Signed-off-by: Paul Mundt <lethal@linux-sh.org> Acked-by: Mel Gorman <mel@csn.ul.ie> Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/page_alloc.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 43cb3b3e167..40954fb8159 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -138,7 +138,7 @@ static unsigned long __meminitdata dma_reserve;
#endif /* CONFIG_MEMORY_HOTPLUG_RESERVE */
unsigned long __initdata required_kernelcore;
unsigned long __initdata required_movablecore;
- unsigned long __initdata zone_movable_pfn[MAX_NUMNODES];
+ unsigned long __meminitdata zone_movable_pfn[MAX_NUMNODES];
/* movable_zone is the "real" zone pages in ZONE_MOVABLE are taken from */
int movable_zone;