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percpu: clear memory allocated with the km allocator
Percpu allocator should clear memory before returning it but the km allocator forgot to do it. Fix it. Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: Peter Zijlstra <peterz@infradead.org> Acked-by: Peter Zijlstra <peterz@infradead.org>
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@ -35,7 +35,11 @@
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static int pcpu_populate_chunk(struct pcpu_chunk *chunk, int off, int size)
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static int pcpu_populate_chunk(struct pcpu_chunk *chunk, int off, int size)
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{
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{
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/* noop */
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unsigned int cpu;
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for_each_possible_cpu(cpu)
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memset((void *)pcpu_chunk_addr(chunk, cpu, 0) + off, 0, size);
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return 0;
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return 0;
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}
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}
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