[PATCH v2] net/mlx5_core/health: Remove deprecated create_singlethread_workqueue

Bhaktipriya Shridhar
2016-07-26T17:08:33Z

The workqueue health->wq was used as per device private health thread.
This was done to perform delayed work.

The workqueue has a single workitem(&health->work) and
hence doesn't require ordering. It is involved in handling the health of
the device and is not being used on a memory reclaim path.
Hence, the singlethreaded workqueue has been replaced with the use of
system_wq.

Work item has been flushed in mlx5_health_cleanup() to ensure that
there are no pending tasks while disconnecting the driver.

Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
---
Changes in v2:
-Updated commit description as per the feedback received.

drivers/net/ethernet/mellanox/mlx5/core/health.c | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/health.c b/drivers/net/ethernet/mellanox/mlx5/core/health.c
index 42d16b9..9acbccf 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/health.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/health.c
@@ -267,7 +267,7 @@ static void poll_health(unsigned long data)
if (in_fatal(dev) && !health->sick) {
health->sick = true;
print_health_info(dev);
- queue_work(health->wq, &health->work);
+ schedule_work(&health->work);
}
}

@@ -296,7 +296,7 @@ void mlx5_health_cleanup(struct mlx5_core_dev *dev)
{
struct mlx5_core_health *health = &dev->priv.health;

- destroy_workqueue(health->wq);
+ flush_work(&health->work);
}

int mlx5_health_init(struct mlx5_core_dev *dev)
@@ -311,10 +311,7 @@ int mlx5_health_init(struct mlx5_core_dev *dev)

strcpy(name, "mlx5_health");
strcat(name, dev_name(&dev->pdev->dev));
- health->wq = create_singlethread_workqueue(name);
kfree(name);
- if (!health->wq)
- return -ENOMEM;

INIT_WORK(&health->work, health_care);

--
2.1.4