The patch titled
memory hotplug: fix unnecessary calling of init_currenty_empty_zone()
has been added to the -mm tree. Its filename is
memory-hotplug-fix-unnecessary-calling-of-init_currenty_empty_zone.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: memory hotplug: fix unnecessary calling of init_currenty_empty_zone()
From: Yasunori Goto <y-goto@xxxxxxxxxxxxxx>
zone->present_pages is updated in online_pages(). But, __add_zone() can be
called twice or more before calling online_pages(). So,
init_currenty_empty_zone() can be called unnecessary times. It is cause of
memory leak of zone's wait_table.
Signed-off-by: Yasunori Goto <y-goto@xxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/memory_hotplug.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN mm/memory_hotplug.c~memory-hotplug-fix-unnecessary-calling-of-init_currenty_empty_zone mm/memory_hotplug.c
--- a/mm/memory_hotplug.c~memory-hotplug-fix-unnecessary-calling-of-init_currenty_empty_zone
+++ a/mm/memory_hotplug.c
@@ -65,7 +65,7 @@ static int __add_zone(struct zone *zone,
int zone_type;
zone_type = zone - pgdat->node_zones;
- if (!populated_zone(zone)) {
+ if (!zone->wait_table) {
int ret = 0;
ret = init_currently_empty_zone(zone, phys_start_pfn,
nr_pages, MEMMAP_HOTPLUG);
_
Patches currently in -mm which might be from y-goto@xxxxxxxxxxxxxx are
memory-hotplug-fix-unnecessary-calling-of-init_currenty_empty_zone.patch
move-three-functions-that-are-only-needed-for.patch
move-free-pages-between-lists-on-steal.patch
create-the-zone_movable-zone.patch
handle-kernelcore=-generic.patch
-
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