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NVMe: Fix check_flush_dependency warning 

If the controller fails and is degraded after a reset, we need to kill
off all requests queues before removing the inaccessble namespaces. This
will prevent del_gendisk from syncing dirty data, which we can't due
from a WQ_MEM_RECLAIM work queue.

Signed-off-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Keith Busch 2016-04-27 15:51:18 -06:00 committed by Jens Axboe
parent b31356dfde
commit 3b24774e1f
1 changed files with 1 additions and 0 deletions
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1
drivers/nvme/host/pci.c
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@ -1887,6 +1887,7 @@ static void nvme_reset_work(struct work_struct *work)
*/
if (dev->online_queues < 2) {
dev_warn(dev->ctrl.device, "IO queues not created\n");
nvme_kill_queues(&dev->ctrl);
nvme_remove_namespaces(&dev->ctrl);
} else {
nvme_start_queues(&dev->ctrl);