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percpu: stop leaking bitmap metadata blocks 

commit 6685b35736 upstream.

The commit ca460b3c96 ("percpu: introduce bitmap metadata blocks")
introduced bitmap metadata blocks. These metadata blocks are allocated
whenever a new chunk is created, but they are never freed. Fix it.

Fixes: ca460b3c96 ("percpu: introduce bitmap metadata blocks")
Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dennis Zhou <dennis@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
pull/10/head
Mike Rapoport 2018-10-07 11:31:51 +03:00 committed by Greg Kroah-Hartman
parent 6c8f4babb5
commit 54886c9783
1 changed files with 1 additions and 0 deletions
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mm/percpu.c
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@ -1208,6 +1208,7 @@ static void pcpu_free_chunk(struct pcpu_chunk *chunk)
{
if (!chunk)
return;
pcpu_mem_free(chunk->md_blocks);
pcpu_mem_free(chunk->bound_map);
pcpu_mem_free(chunk->alloc_map);
pcpu_mem_free(chunk);