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From:   Peng Fan <peng.fan@nxp.com>
To:     "dennis@kernel.org" <dennis@kernel.org>,
        "tj@kernel.org" <tj@kernel.org>, "cl@linux.com" <cl@linux.com>
CC:     "linux-mm@kvack.org" <linux-mm@kvack.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "van.freenix@gmail.com" <van.freenix@gmail.com>,
        Peng Fan <peng.fan@nxp.com>
Subject: [PATCH 2/2] percpu: km: no need to consider pcpu_group_offsets[0]
Thread-Topic: [PATCH 2/2] percpu: km: no need to consider
 pcpu_group_offsets[0]
Thread-Index: AQHUzELI99orDQmet0qADTSfLzpSUQ==
Date:   Sun, 24 Feb 2019 13:13:50 +0000
Message-ID: <20190224132518.20586-2-peng.fan@nxp.com>
References: <20190224132518.20586-1-peng.fan@nxp.com>
In-Reply-To: <20190224132518.20586-1-peng.fan@nxp.com>
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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>
---
 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);
=20
 	chunk->data =3D pages;
-	chunk->base_addr =3D page_address(pages) - pcpu_group_offsets[0];
+	chunk->base_addr =3D page_address(pages);
=20
 	spin_lock_irqsave(&pcpu_lock, flags);
 	pcpu_chunk_populated(chunk, 0, nr_pages, false);
--=20
2.16.4