From: Christoph Hellwig <hch@lst.de>
To: Jens Axboe <axboe@kernel.dk>
Cc: "Martin K . Petersen" <martin.petersen@oracle.com>,
Oleksii Kurochko <olkuroch@cisco.com>,
Sagi Grimberg <sagi@grimberg.me>,
Mike Snitzer <snitzer@redhat.com>,
Ilya Dryomov <idryomov@gmail.com>,
Dongsheng Yang <dongsheng.yang@easystack.cn>,
ceph-devel@vger.kernel.org, dm-devel@redhat.com,
linux-block@vger.kernel.org, linux-nvme@lists.infradead.org
Subject: [PATCH 3/4] nvme: allow revalidate to set a namespace read-only
Date: Sun, 29 Nov 2020 19:19:25 +0100 [thread overview]
Message-ID: <20201129181926.897775-4-hch@lst.de> (raw)
In-Reply-To: <20201129181926.897775-1-hch@lst.de>
Unconditionally call set_disk_ro now that it only updates the hardware
state. This allows to properly set up the Linux devices read-only when
the controller turns a previously writable namespace read-only.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
drivers/nvme/host/core.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index bc89e8659c403f..2442f43a1a5624 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -2047,8 +2047,7 @@ static void nvme_update_disk_info(struct gendisk *disk,
nvme_config_discard(disk, ns);
nvme_config_write_zeroes(disk, ns);
- if (id->nsattr & NVME_NS_ATTR_RO)
- set_disk_ro(disk, true);
+ set_disk_ro(disk, id->nsattr & NVME_NS_ATTR_RO);
}
static inline bool nvme_first_scan(struct gendisk *disk)
--
2.29.2
next prev parent reply other threads:[~2020-11-29 18:21 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-29 18:19 split hard read-only vs read-only policy v2 Christoph Hellwig
2020-11-29 18:19 ` [PATCH 1/4] block: add a hard-readonly flag to struct gendisk Christoph Hellwig
2020-11-30 1:23 ` Alex Elder
2020-11-30 7:55 ` Hannes Reinecke
2020-12-03 4:04 ` Martin K. Petersen
2020-12-03 8:53 ` Christoph Hellwig
2020-12-03 14:01 ` Martin K. Petersen
2020-11-29 18:19 ` [PATCH 2/4] rbd: remove the ->set_read_only method Christoph Hellwig
2020-11-30 7:56 ` Hannes Reinecke
2020-11-29 18:19 ` Christoph Hellwig [this message]
2020-11-29 21:13 ` [PATCH 3/4] nvme: allow revalidate to set a namespace read-only Chaitanya Kulkarni
2020-11-30 7:57 ` Hannes Reinecke
2020-11-29 18:19 ` [PATCH 4/4] dm: use bdev_read_only to check if a device is read-only Christoph Hellwig
2020-11-30 7:58 ` Hannes Reinecke
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