Commit d39aa497 authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Jens Axboe
Browse files

Revert "nvmet-rdma: use a private workqueue for delete"

This reverts commit 2acf70ad

.

The commit never really fixed the intended issue and caused all
kinds of other issues, including a use before initialization.
Suggested-by: default avatarSagi Grimberg <sagi@grimberg.me>
Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 8f676b85
......@@ -122,7 +122,6 @@ struct nvmet_rdma_device {
int inline_page_count;
};
static struct workqueue_struct *nvmet_rdma_delete_wq;
static bool nvmet_rdma_use_srq;
module_param_named(use_srq, nvmet_rdma_use_srq, bool, 0444);
MODULE_PARM_DESC(use_srq, "Use shared receive queue.");
......@@ -1274,12 +1273,12 @@ static int nvmet_rdma_queue_connect(struct rdma_cm_id *cm_id,
if (queue->host_qid == 0) {
/* Let inflight controller teardown complete */
flush_workqueue(nvmet_rdma_delete_wq);
flush_scheduled_work();
}
ret = nvmet_rdma_cm_accept(cm_id, queue, &event->param.conn);
if (ret) {
queue_work(nvmet_rdma_delete_wq, &queue->release_work);
schedule_work(&queue->release_work);
/* Destroying rdma_cm id is not needed here */
return 0;
}
......@@ -1344,7 +1343,7 @@ static void __nvmet_rdma_queue_disconnect(struct nvmet_rdma_queue *queue)
if (disconnect) {
rdma_disconnect(queue->cm_id);
queue_work(nvmet_rdma_delete_wq, &queue->release_work);
schedule_work(&queue->release_work);
}
}
......@@ -1374,7 +1373,7 @@ static void nvmet_rdma_queue_connect_fail(struct rdma_cm_id *cm_id,
mutex_unlock(&nvmet_rdma_queue_mutex);
pr_err("failed to connect queue %d\n", queue->idx);
queue_work(nvmet_rdma_delete_wq, &queue->release_work);
schedule_work(&queue->release_work);
}
/**
......@@ -1656,17 +1655,8 @@ static int __init nvmet_rdma_init(void)
if (ret)
goto err_ib_client;
nvmet_rdma_delete_wq = alloc_workqueue("nvmet-rdma-delete-wq",
WQ_UNBOUND | WQ_MEM_RECLAIM | WQ_SYSFS, 0);
if (!nvmet_rdma_delete_wq) {
ret = -ENOMEM;
goto err_unreg_transport;
}
return 0;
err_unreg_transport:
nvmet_unregister_transport(&nvmet_rdma_ops);
err_ib_client:
ib_unregister_client(&nvmet_rdma_ib_client);
return ret;
......@@ -1674,7 +1664,6 @@ static int __init nvmet_rdma_init(void)
static void __exit nvmet_rdma_exit(void)
{
destroy_workqueue(nvmet_rdma_delete_wq);
nvmet_unregister_transport(&nvmet_rdma_ops);
ib_unregister_client(&nvmet_rdma_ib_client);
WARN_ON_ONCE(!list_empty(&nvmet_rdma_queue_list));
......
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