Hello, The 1st three patch fixes io hang when controller removal interrupts error recovery, then queue is left as frozen. The 4th patch fixes io hang when controller is left as unquiesce. V2: - don't unfreeze queue which isn't frozen for avoiding warning from percpu_ref_resurrect() Ming Lei (4): blk-mq: add API of blk_mq_unfreeze_queue_force nvme: add nvme_unfreeze_force() nvme: unfreeze queues before removing namespaces nvme: unquiesce io queues when removing namespaces block/blk-mq.c | 28 +++++++++++++++++++++++++--- block/blk.h | 3 ++- block/genhd.c | 2 +- drivers/nvme/host/core.c | 34 ++++++++++++++++++++++++++++------ drivers/nvme/host/nvme.h | 1 + include/linux/blk-mq.h | 1 + 6 files changed, 58 insertions(+), 11 deletions(-) -- 2.40.1
