Commit 1b046b44 authored Feb 24, 2019 by Peng Fan Committed by Dennis Zhou Feb 26, 2019

percpu: km: no need to consider pcpu_group_offsets[0]



percpu-km is used on UP systems which only has one group,
so the group offset will be always 0, there is no need
to subtract pcpu_group_offsets[0] when assigning chunk->base_addr

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Acked-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Dennis Zhou <dennis@kernel.org>

parent 2de7852f

mm/percpu-km.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -67,7 +67,7 @@ static struct pcpu_chunk *pcpu_create_chunk(gfp_t gfp)
		pcpu_set_page_chunk(nth_page(pages, i), chunk);

		chunk->data = pages;
		chunk->base_addr = page_address(pages) - pcpu_group_offsets[0];
		chunk->base_addr = page_address(pages);

		spin_lock_irqsave(&pcpu_lock, flags);
		pcpu_chunk_populated(chunk, 0, nr_pages, false);

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