Hi, The 1st patch introduces blk_quiesce_timeout() and blk_unquiesce_timeout() for NVMe, meantime fixes blk_sync_queue(). The 2nd patch covers timeout for admin commands for recovering controller for avoiding possible deadlock. The other 3 patches fixes several races wrt. NVMe timeout handler, and finally can make blktests block/011 passed. Ming Lei (5): block: introduce blk_quiesce_timeout() and blk_unquiesce_timeout() nvme: pci: cover timeout for admin commands running in EH nvme: pci: only wait freezing if queue is frozen nvme: fix race between freeze queues and unfreeze queues nvme: pci: simplify timeout handling V2: - fix draining timeout work, so no need to change return value from .timeout() - fix race between nvme_start_freeze() and nvme_unfreeze() - cover timeout for admin commands running in EH block/blk-core.c | 34 +++++++- block/blk-mq.c | 9 ++ block/blk-timeout.c | 5 +- drivers/nvme/host/core.c | 47 ++++++++-- drivers/nvme/host/nvme.h | 6 ++ drivers/nvme/host/pci.c | 222 ++++++++++++++++++++++++++++++++++++++++++----- include/linux/blkdev.h | 4 + 7 files changed, 296 insertions(+), 31 deletions(-) Cc: Jianchao Wang <jianchao.w.wang@xxxxxxxxxx> Cc: Christoph Hellwig <hch@xxxxxx> Cc: Sagi Grimberg <sagi@xxxxxxxxxxx> Cc: linux-nvme@xxxxxxxxxxxxxxxxxxx -- 2.9.5
