nvme: move controller deletion to common code
Move the ->delete_work and the associated helpers to common code instead
of duplicating them in every driver. This also adds the missing reference
get/put for the loop driver.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c
index 32b0a9e..5175b46 100644
--- a/drivers/nvme/host/rdma.c
+++ b/drivers/nvme/host/rdma.c
@@ -105,7 +105,6 @@ struct nvme_rdma_ctrl {
/* other member variables */
struct blk_mq_tag_set tag_set;
- struct work_struct delete_work;
struct work_struct err_work;
struct nvme_rdma_qe async_event_sqe;
@@ -913,7 +912,7 @@ static void nvme_rdma_reconnect_or_remove(struct nvme_rdma_ctrl *ctrl)
ctrl->ctrl.opts->reconnect_delay * HZ);
} else {
dev_info(ctrl->ctrl.device, "Removing controller...\n");
- queue_work(nvme_wq, &ctrl->delete_work);
+ queue_work(nvme_wq, &ctrl->ctrl.delete_work);
}
}
@@ -1764,41 +1763,10 @@ static void nvme_rdma_remove_ctrl(struct nvme_rdma_ctrl *ctrl)
nvme_put_ctrl(&ctrl->ctrl);
}
-static void nvme_rdma_del_ctrl_work(struct work_struct *work)
+static void nvme_rdma_delete_ctrl(struct nvme_ctrl *ctrl)
{
- struct nvme_rdma_ctrl *ctrl = container_of(work,
- struct nvme_rdma_ctrl, delete_work);
-
- nvme_stop_ctrl(&ctrl->ctrl);
- nvme_rdma_remove_ctrl(ctrl);
-}
-
-static int __nvme_rdma_del_ctrl(struct nvme_rdma_ctrl *ctrl)
-{
- if (!nvme_change_ctrl_state(&ctrl->ctrl, NVME_CTRL_DELETING))
- return -EBUSY;
-
- if (!queue_work(nvme_wq, &ctrl->delete_work))
- return -EBUSY;
-
- return 0;
-}
-
-static int nvme_rdma_del_ctrl(struct nvme_ctrl *nctrl)
-{
- struct nvme_rdma_ctrl *ctrl = to_rdma_ctrl(nctrl);
- int ret = 0;
-
- /*
- * Keep a reference until all work is flushed since
- * __nvme_rdma_del_ctrl can free the ctrl mem
- */
- nvme_get_ctrl(&ctrl->ctrl);
- ret = __nvme_rdma_del_ctrl(ctrl);
- if (!ret)
- flush_work(&ctrl->delete_work);
- nvme_put_ctrl(&ctrl->ctrl);
- return ret;
+ nvme_stop_ctrl(ctrl);
+ nvme_rdma_remove_ctrl(to_rdma_ctrl(ctrl));
}
static void nvme_rdma_reset_ctrl_work(struct work_struct *work)
@@ -1846,7 +1814,7 @@ static const struct nvme_ctrl_ops nvme_rdma_ctrl_ops = {
.reg_write32 = nvmf_reg_write32,
.free_ctrl = nvme_rdma_free_ctrl,
.submit_async_event = nvme_rdma_submit_async_event,
- .delete_ctrl = nvme_rdma_del_ctrl,
+ .delete_ctrl = nvme_rdma_delete_ctrl,
.get_address = nvmf_get_address,
.reinit_request = nvme_rdma_reinit_request,
};
@@ -1977,7 +1945,6 @@ static struct nvme_ctrl *nvme_rdma_create_ctrl(struct device *dev,
INIT_DELAYED_WORK(&ctrl->reconnect_work,
nvme_rdma_reconnect_ctrl_work);
INIT_WORK(&ctrl->err_work, nvme_rdma_error_recovery_work);
- INIT_WORK(&ctrl->delete_work, nvme_rdma_del_ctrl_work);
INIT_WORK(&ctrl->ctrl.reset_work, nvme_rdma_reset_ctrl_work);
ctrl->ctrl.queue_count = opts->nr_io_queues + 1; /* +1 for admin queue */
@@ -2081,7 +2048,7 @@ static void nvme_rdma_remove_one(struct ib_device *ib_device, void *client_data)
dev_info(ctrl->ctrl.device,
"Removing ctrl: NQN \"%s\", addr %pISp\n",
ctrl->ctrl.opts->subsysnqn, &ctrl->addr);
- __nvme_rdma_del_ctrl(ctrl);
+ nvme_delete_ctrl(&ctrl->ctrl);
}
mutex_unlock(&nvme_rdma_ctrl_mutex);