From 1293477f4f324f9cf23a36f6cc0adc6801f1baac Mon Sep 17 00:00:00 2001 From: Chaitanya Kulkarni Date: Tue, 7 Aug 2018 23:01:06 -0700 Subject: [PATCH] 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 Signed-off-by: Christoph Hellwig --- drivers/nvme/host/core.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index 603fe59756fb..dd8ec1dd9219 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -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); } -- 2.30.2