The patch titled
Subject: mm/hotplug: only free wait_table if it's allocated by vmalloc
has been added to the -mm tree. Its filename is
mm-hotplug-only-free-wait_table-if-its-allocated-by-vmalloc.patch
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------------------------------------------------------
From: Jianguo Wu <wujianguo@xxxxxxxxxx>
Subject: mm/hotplug: only free wait_table if it's allocated by vmalloc
zone->wait_table may be allocated from bootmem, it can not be freed.
Signed-off-by: Jianguo Wu <wujianguo@xxxxxxxxxx>
Reviewed-by: Tang Chen <tangchen@xxxxxxxxxxxxxx>
Cc: Tang Chen <tangchen@xxxxxxxxxxxxxx>
Cc: Jiang Liu <jiang.liu@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/memory_hotplug.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff -puN mm/memory_hotplug.c~mm-hotplug-only-free-wait_table-if-its-allocated-by-vmalloc mm/memory_hotplug.c
--- a/mm/memory_hotplug.c~mm-hotplug-only-free-wait_table-if-its-allocated-by-vmalloc
+++ a/mm/memory_hotplug.c
@@ -1779,7 +1779,11 @@ void try_offline_node(int nid)
for (i = 0; i < MAX_NR_ZONES; i++) {
struct zone *zone = pgdat->node_zones + i;
- if (zone->wait_table)
+ /*
+ * wait_table may be allocated from boot memory,
+ * here only free if it's allocated by vmalloc.
+ */
+ if (is_vmalloc_addr(zone->wait_table))
vfree(zone->wait_table);
}
_
Patches currently in -mm which might be from wujianguo@xxxxxxxxxx are
linux-next.patch
mm-hotplug-only-free-wait_table-if-its-allocated-by-vmalloc.patch
arch-x86-mm-init_64c-fix-build-warning-when-config_memory_hotremove=n.patch
mm-migrate-fix-comment-typo-syncronous-synchronous.patch
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