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| author | Sunghyun Jin <mcsmonk@gmail.com> | 2020-09-03 21:41:16 +0900 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-09-23 12:40:45 +0200 |
| commit | e44bd84cd2ab06578bff58ea5e9af856ec63f47f (patch) | |
| tree | d6801686446760c9bebd90f39df4119421711f36 /mm/percpu.c | |
| parent | 32f60ecbb9b88523bc3d90e2106edd78c7bb5737 (diff) | |
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/percpu.c')
| -rw-r--r-- | mm/percpu.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/percpu.c b/mm/percpu.c index 7e06a1e58720..806bc16f88eb 100644 --- a/mm/percpu.c +++ b/mm/percpu.c @@ -1328,7 +1328,7 @@ 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__, |