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-rw-r--r--mm/percpu.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/mm/percpu.c b/mm/percpu.c
index e5c4cbd..a64133f 100644
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -1347,6 +1347,10 @@ struct pcpu_alloc_info * __init pcpu_build_alloc_info(
struct pcpu_alloc_info *ai;
unsigned int *cpu_map;
+ /* this function may be called multiple times */
+ memset(group_map, 0, sizeof(group_map));
+ memset(group_cnt, 0, sizeof(group_map));
+
/*
* Determine min_unit_size, alloc_size and max_upa such that
* alloc_size is multiple of atom_size and is the smallest
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