Commit 1293477f authored Aug 07, 2018 by Chaitanya Kulkarni Committed by Christoph Hellwig Aug 08, 2018

nvme: set gendisk read only based on nsattr



NVMe 1.3 TP 4005 introduces new filed (NSATTR). This field indicates
whether given namespace is write protected or not. This patch sets the
gendisk associated with the namespace to read only based on the identify
namespace nsattr field.

Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>

parent 93045d59

drivers/nvme/host/core.c

+6 −0

Original line number	Diff line number	Diff line
		@@ -1484,6 +1484,12 @@ static void nvme_update_disk_info(struct gendisk *disk,

		set_capacity(disk, capacity);
		nvme_config_discard(ns);

		if (id->nsattr & (1 << 0))
		set_disk_ro(disk, true);
		else
		set_disk_ro(disk, false);

		blk_mq_unfreeze_queue(disk->queue);
		}

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