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nvmet-rdma: Don't flush system_wq by default during remove_one 

The .remove_one function is called for any ib_device removal.
In case the removed device has no reference in our driver, there
is no need to flush the system work queue.

Reviewed-by: Israel Rukshin <israelr@mellanox.com>
Signed-off-by: Max Gurtovoy <maxg@mellanox.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
hifive-unleashed-5.1
Max Gurtovoy 2018-02-28 13:12:38 +02:00 committed by Jens Axboe
parent e1a2ee249b
commit a3dd7d0022
1 changed files with 18 additions and 1 deletions
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19
drivers/nvme/target/rdma.c
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@ -1469,8 +1469,25 @@ static struct nvmet_fabrics_ops nvmet_rdma_ops = {
static void nvmet_rdma_remove_one(struct ib_device *ib_device, void *client_data)
{
struct nvmet_rdma_queue *queue, *tmp;
struct nvmet_rdma_device *ndev;
bool found = false;
/* Device is being removed, delete all queues using this device */
mutex_lock(&device_list_mutex);
list_for_each_entry(ndev, &device_list, entry) {
if (ndev->device == ib_device) {
found = true;
break;
}
}
mutex_unlock(&device_list_mutex);
if (!found)
return;
/*
* IB Device that is used by nvmet controllers is being removed,
* delete all queues using this device.
*/
mutex_lock(&nvmet_rdma_queue_mutex);
list_for_each_entry_safe(queue, tmp, &nvmet_rdma_queue_list,
queue_list) {