diff options
| author | Nitzan Carmi <nitzanc@mellanox.com> | 2018-03-20 11:07:30 +0000 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2018-03-26 08:53:43 -0600 |
| commit | b435ecea2a4d0b5cd5be2c5497c3461435f3f3a7 (patch) | |
| tree | 80a22ddb03658c3b9f7c64d82f254ede50929b1b /drivers/nvme | |
| parent | 187c0832ee80250036adb386b5ffa8f4bcb0ff1e (diff) | |
| download | blackbird-op-linux-b435ecea2a4d0b5cd5be2c5497c3461435f3f3a7.tar.gz blackbird-op-linux-b435ecea2a4d0b5cd5be2c5497c3461435f3f3a7.zip | |
nvme: Add .stop_ctrl to nvme ctrl ops
For consistancy reasons, any fabric-specific works
(e.g error recovery/reconnect) should be canceled in
nvme_stop_ctrl, as for all other NVMe pending works
(e.g. scan, keep alive).
The patch aims to simplify the logic of the code, as
we now only rely on a vague demand from any fabric
to flush its private workqueues at the beginning of
.delete_ctrl op.
Signed-off-by: Nitzan Carmi <nitzanc@mellanox.com>
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/nvme')
| -rw-r--r-- | drivers/nvme/host/core.c | 2 | ||||
| -rw-r--r-- | drivers/nvme/host/nvme.h | 1 | ||||
| -rw-r--r-- | drivers/nvme/host/rdma.c | 12 |
3 files changed, 12 insertions, 3 deletions
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index 7811b4886e63..ad99dd76dcd2 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -3370,6 +3370,8 @@ void nvme_stop_ctrl(struct nvme_ctrl *ctrl) flush_work(&ctrl->async_event_work); flush_work(&ctrl->scan_work); cancel_work_sync(&ctrl->fw_act_work); + if (ctrl->ops->stop_ctrl) + ctrl->ops->stop_ctrl(ctrl); } EXPORT_SYMBOL_GPL(nvme_stop_ctrl); diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h index 29942b1892f7..741e3c79bbe9 100644 --- a/drivers/nvme/host/nvme.h +++ b/drivers/nvme/host/nvme.h @@ -313,6 +313,7 @@ struct nvme_ctrl_ops { void (*delete_ctrl)(struct nvme_ctrl *ctrl); int (*get_address)(struct nvme_ctrl *ctrl, char *buf, int size); int (*reinit_request)(void *data, struct request *rq); + void (*stop_ctrl)(struct nvme_ctrl *ctrl); }; #ifdef CONFIG_FAULT_INJECTION_DEBUG_FS diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c index 5e731f2c329c..758537e9ba07 100644 --- a/drivers/nvme/host/rdma.c +++ b/drivers/nvme/host/rdma.c @@ -867,6 +867,14 @@ out_free_io_queues: return ret; } +static void nvme_rdma_stop_ctrl(struct nvme_ctrl *nctrl) +{ + struct nvme_rdma_ctrl *ctrl = to_rdma_ctrl(nctrl); + + cancel_work_sync(&ctrl->err_work); + cancel_delayed_work_sync(&ctrl->reconnect_work); +} + static void nvme_rdma_free_ctrl(struct nvme_ctrl *nctrl) { struct nvme_rdma_ctrl *ctrl = to_rdma_ctrl(nctrl); @@ -1718,9 +1726,6 @@ static const struct blk_mq_ops nvme_rdma_admin_mq_ops = { static void nvme_rdma_shutdown_ctrl(struct nvme_rdma_ctrl *ctrl, bool shutdown) { - cancel_work_sync(&ctrl->err_work); - cancel_delayed_work_sync(&ctrl->reconnect_work); - if (ctrl->ctrl.queue_count > 1) { nvme_stop_queues(&ctrl->ctrl); blk_mq_tagset_busy_iter(&ctrl->tag_set, @@ -1798,6 +1803,7 @@ static const struct nvme_ctrl_ops nvme_rdma_ctrl_ops = { .submit_async_event = nvme_rdma_submit_async_event, .delete_ctrl = nvme_rdma_delete_ctrl, .get_address = nvmf_get_address, + .stop_ctrl = nvme_rdma_stop_ctrl, }; static inline bool |
