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[5.9,179/255] nvme: fix incorrect behavior when BLKROSET is called by the user

Message ID 20201117122147.640259511@linuxfoundation.org
State New
Headers show
Series None | expand

Commit Message

Greg KH Nov. 17, 2020, 1:05 p.m. UTC
From: Sagi Grimberg <sagi@grimberg.me>

[ Upstream commit 65c5a055b0d567b7e7639d942c0605da9cc54c5e ]

The offending commit breaks BLKROSET ioctl because a device
revalidation will blindly override BLKROSET setting. Hence,
we remove the disk rw setting in case NVME_NS_ATTR_RO is cleared
from by the controller.

Fixes: 1293477f4f32 ("nvme: set gendisk read only based on nsattr")
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/nvme/host/core.c | 2 --
 1 file changed, 2 deletions(-)
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Patch

diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index b130696b00592..349fba056cb65 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -2064,8 +2064,6 @@  static void nvme_update_disk_info(struct gendisk *disk,
 
 	if (id->nsattr & NVME_NS_ATTR_RO)
 		set_disk_ro(disk, true);
-	else
-		set_disk_ro(disk, false);
 }
 
 static inline bool nvme_first_scan(struct gendisk *disk)