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authorSunghyun Jin <mcsmonk@gmail.com>2020-09-03 21:41:16 +0900
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-09-23 12:11:01 +0200
commit5afd52f302cac2700c59b86d19c329c0ba918977 (patch)
tree4bebff0b5b1322d35581d166f8426e4d7875f9af /mm
parentcb0978891ba6c7be05b4d0d71004a50f57cc1530 (diff)
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percpu: fix first chunk size calculation for populated bitmap
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>
Diffstat (limited to 'mm')
-rw-r--r--mm/percpu.c2
1 files changed, 1 insertions, 1 deletions
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);