[PATCH 6/6] nvme: allow revalidate to set a namespace read-only

Christoph Hellwig
2020-12-08T16:38:20Z

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>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
---
drivers/nvme/host/core.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index ce1b6151944131..3a0557ccc9fc5d 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -2114,9 +2114,8 @@ 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) ||
- test_bit(NVME_NS_FORCE_RO, &ns->flags))
- set_disk_ro(disk, true);
+ set_disk_ro(disk, (id->nsattr & NVME_NS_ATTR_RO) ||
+ test_bit(NVME_NS_FORCE_RO, &ns->flags));
}

static inline bool nvme_first_scan(struct gendisk *disk)
--
2.29.2