linux-kernel - [PATCH 2/4] libnvdimm/pmem: implement ->set_read

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Message-Id: <20211027120937.1163744-3-huaisheng.ye@intel.com>
Date:   Wed, 27 Oct 2021 20:09:35 +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 2/4] libnvdimm/pmem: implement ->set_read_only to hook into BLKROSET processing

Implement the ->set_read_only method for nd_pmem.

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

diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c
index ef4950f80832..38ede1f44f5f 100644
--- a/drivers/nvdimm/pmem.c
+++ b/drivers/nvdimm/pmem.c
@@ -282,6 +282,7 @@ static const struct block_device_operations pmem_fops = {
 	.owner =		THIS_MODULE,
 	.submit_bio =		pmem_submit_bio,
 	.rw_page =		pmem_rw_page,
+	.set_read_only =	nd_set_ro,
 };
 
 static int pmem_dax_zero_page_range(struct dax_device *dax_dev, pgoff_t pgoff,
-- 
2.27.0