Commit ed6c1115 authored Sep 10, 2010 by Tejun Heo Committed by Pekka Enberg Oct 02, 2010

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>

parent 9b8327bb

mm/percpu-km.c

+5 −1

Original line number	Diff line number	Diff line
		@@ -35,7 +35,11 @@

		static int pcpu_populate_chunk(struct pcpu_chunk *chunk, int off, int size)
		{
		/* noop */
		unsigned int cpu;

		for_each_possible_cpu(cpu)
		memset((void *)pcpu_chunk_addr(chunk, cpu, 0) + off, 0, size);

		return 0;
		}