[PATCH 2/2] percpu: km: no need to consider pcpu_group_offsets[0]

From: Peng Fan
Date: Sun Feb 24 2019 - 08:13:58 EST


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@xxxxxxx>
---
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