From b3b33d3c43bbe0177d70653f4e889c78cc37f097 Mon Sep 17 00:00:00 2001 From: Sunghyun Jin Date: Thu, 3 Sep 2020 21:41:16 +0900 Subject: percpu: fix first chunk size calculation for populated bitmap 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: # 4.14+ Signed-off-by: Sunghyun Jin Signed-off-by: Dennis Zhou --- mm/percpu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'mm/percpu.c') diff --git a/mm/percpu.c b/mm/percpu.c index f4709629e6de..1ed1a349eab8 100644 --- a/mm/percpu.c +++ b/mm/percpu.c @@ -1316,7 +1316,7 @@ static struct pcpu_chunk * __init pcpu_alloc_first_chunk(unsigned long tmp_addr, /* allocate chunk */ alloc_size = sizeof(struct pcpu_chunk) + - BITS_TO_LONGS(region_size >> PAGE_SHIFT); + BITS_TO_LONGS(region_size >> PAGE_SHIFT) * sizeof(unsigned long); chunk = memblock_alloc(alloc_size, SMP_CACHE_BYTES); if (!chunk) panic("%s: Failed to allocate %zu bytes\n", __func__, -- cgit v1.2.3