From: Sunghyun Jin <mcsmonk@gmail.com> stable inclusion from linux-4.19.147 commit 5afd52f302cac2700c59b86d19c329c0ba918977 -------------------------------- commit b3b33d3c43bbe0177d70653f4e889c78cc37f097 upstream. Variable populated, which is a member of struct pcpu_chunk, is used as a unit of size of unsigned long. However, size of populated is miscounted. So, I fix this minor part. Fixes: 8ab16c43ea79 ("percpu: change the number of pages marked in the first_chunk pop bitmap") Cc: <stable@vger.kernel.org> # 4.14+ Signed-off-by: Sunghyun Jin <mcsmonk@gmail.com> Signed-off-by: Dennis Zhou <dennis@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> --- mm/percpu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/percpu.c b/mm/percpu.c index ff76fa0b7528..0151f276ae68 100644 --- a/mm/percpu.c +++ b/mm/percpu.c @@ -1103,7 +1103,7 @@ static struct pcpu_chunk * __init pcpu_alloc_first_chunk(unsigned long tmp_addr, /* allocate chunk */ chunk = memblock_virt_alloc(sizeof(struct pcpu_chunk) + - BITS_TO_LONGS(region_size >> PAGE_SHIFT), + BITS_TO_LONGS(region_size >> PAGE_SHIFT) * sizeof(unsigned long), 0); INIT_LIST_HEAD(&chunk->list); -- 2.25.1