The patch titled
percpu: fix a memory leak in pcpu_extend_area_map()
has been added to the -mm tree. Its filename is
percpu-fix-a-memory-leak-in-pcpu_extend_area_map.patch
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------------------------------------------------------
Subject: percpu: fix a memory leak in pcpu_extend_area_map()
From: Huang Shijie <shijie8@xxxxxxxxx>
The original code did not free the old map. This patch fixes it.
[tj@xxxxxxxxxx: use @old as memcpy source instead of @chunk->map, and indentation and description update]
Signed-off-by: Huang Shijie <shijie8@xxxxxxxxx>
Signed-off-by: Tejun Heo <tj@xxxxxxxxxx>
Cc: <stable@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/percpu.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff -puN mm/percpu.c~percpu-fix-a-memory-leak-in-pcpu_extend_area_map mm/percpu.c
--- a/mm/percpu.c~percpu-fix-a-memory-leak-in-pcpu_extend_area_map
+++ a/mm/percpu.c
@@ -393,7 +393,9 @@ static int pcpu_extend_area_map(struct p
goto out_unlock;
old_size = chunk->map_alloc * sizeof(chunk->map[0]);
- memcpy(new, chunk->map, old_size);
+ old = chunk->map;
+
+ memcpy(new, old, old_size);
chunk->map_alloc = new_alloc;
chunk->map = new;
_
Patches currently in -mm which might be from shijie8@xxxxxxxxx are
percpu-fix-a-memory-leak-in-pcpu_extend_area_map.patch
kernel-resourcec-handle-reinsertion-of-an-already-inserted-resource.patch
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