3.11.10.11 -stable review patch.  If anyone has any objections, please let me 
know.

------------------

From: Jianyu Zhan <[email protected]>

commit 5a838c3b60e3a36ade764cf7751b8f17d7c9c2da upstream.

pcpu_chunk_struct_size = sizeof(struct pcpu_chunk) +
        BITS_TO_LONGS(pcpu_unit_pages) * sizeof(unsigned long)

It hardly could be ever bigger than PAGE_SIZE even for large-scale machine,
but for consistency with its couterpart pcpu_mem_zalloc(),
use pcpu_mem_free() instead.

Commit b4916cb17c26 ("percpu: make pcpu_free_chunk() use
pcpu_mem_free() instead of kfree()") addressed this problem, but
missed this one.

tj: commit message updated

Signed-off-by: Jianyu Zhan <[email protected]>
Signed-off-by: Tejun Heo <[email protected]>
Fixes: 099a19d91ca4 ("percpu: allow limited allocation before slab is online)
Signed-off-by: Luis Henriques <[email protected]>
---
 mm/percpu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/percpu.c b/mm/percpu.c
index 8c8e08f3a692..25e2ea52db82 100644
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -612,7 +612,7 @@ static struct pcpu_chunk *pcpu_alloc_chunk(void)
        chunk->map = pcpu_mem_zalloc(PCPU_DFL_MAP_ALLOC *
                                                sizeof(chunk->map[0]));
        if (!chunk->map) {
-               kfree(chunk);
+               pcpu_mem_free(chunk, pcpu_chunk_struct_size);
                return NULL;
        }
 
-- 
1.9.1

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