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authorKeith Busch <keith.busch@intel.com>2019-04-30 09:33:41 -0600
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-06-15 11:54:54 +0200
commit44dda4c34abc47f30671ec28d5b3ae71a0cc9859 (patch)
tree74dbeb9ea420a630b416a09fa59b04980e385c3d /drivers/nvme
parent9b1ce7709da0639c000c3c0214be11809d1bcdc2 (diff)
nvme-pci: unquiesce admin queue on shutdown
[ Upstream commit c8e9e9b7646ebe1c5066ddc420d7630876277eb4 ] Just like IO queues, the admin queue also will not be restarted after a controller shutdown. Unquiesce this queue so that we do not block request dispatch on a permanently disabled controller. Reported-by: Yufen Yu <yuyufen@huawei.com> Signed-off-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/nvme')
-rw-r--r--drivers/nvme/host/pci.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index 06355ca832db..cd11cced3678 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -2105,8 +2105,11 @@ static void nvme_dev_disable(struct nvme_dev *dev, bool shutdown)
* must flush all entered requests to their failed completion to avoid
* deadlocking blk-mq hot-cpu notifier.
*/
- if (shutdown)
+ if (shutdown) {
nvme_start_queues(&dev->ctrl);
+ if (dev->ctrl.admin_q && !blk_queue_dying(dev->ctrl.admin_q))
+ blk_mq_unquiesce_queue(dev->ctrl.admin_q);
+ }
mutex_unlock(&dev->shutdown_lock);
}