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Code Issues Releases Wiki Activity

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

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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>
This commit is contained in:
Peng Fan 2019-02-24 13:13:50 +00:00 committed by Dennis Zhou
parent 2de7852fe9
commit 1b046b445c
1 changed files with 1 additions and 1 deletions
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2
mm/percpu-km.c
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@ -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);