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Date: Sun, 24 Feb 2019 13:13:50 +0000 From: Peng Fan <peng.fan@....com> To: "dennis@...nel.org" <dennis@...nel.org>, "tj@...nel.org" <tj@...nel.org>, "cl@...ux.com" <cl@...ux.com> CC: "linux-mm@...ck.org" <linux-mm@...ck.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "van.freenix@...il.com" <van.freenix@...il.com>, Peng Fan <peng.fan@....com> Subject: [PATCH 2/2] 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@....com> --- mm/percpu-km.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/percpu-km.c b/mm/percpu-km.c index 66e5598be876..8872c21a487b 100644 --- a/mm/percpu-km.c +++ b/mm/percpu-km.c @@ -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); -- 2.16.4
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