linux-kernel - [PATCH 4/4] libnvdimm/btt: implement ->set_read

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Date:   Wed, 27 Oct 2021 20:09:37 +0800
From:   Huaisheng Ye <huaisheng.ye@...el.com>
To:     dan.j.williams@...el.com, hch@....de, vishal.l.verma@...el.com,
        dave.jiang@...el.com, ira.weiny@...el.com
Cc:     nvdimm@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Huaisheng Ye <huaisheng.ye@...el.com>
Subject: [PATCH 4/4] libnvdimm/btt: implement ->set_read_only to hook into BLKROSET processing

Implement the ->set_read_only method for nd_btt.

Signed-off-by: Huaisheng Ye <huaisheng.ye@...el.com>
---
 drivers/nvdimm/btt.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/nvdimm/btt.c b/drivers/nvdimm/btt.c
index 92dec4952297..91fcdac7858f 100644
--- a/drivers/nvdimm/btt.c
+++ b/drivers/nvdimm/btt.c
@@ -1514,6 +1514,7 @@ static const struct block_device_operations btt_fops = {
 	.submit_bio =		btt_submit_bio,
 	.rw_page =		btt_rw_page,
 	.getgeo =		btt_getgeo,
+	.set_read_only = 	nd_set_ro,
 };
 
 static int btt_blk_init(struct btt *btt)
-- 
2.27.0