From: Aharon Landau <aharonl@xxxxxxxxxx>
Update cache->last_add when returning an MR to the cache so that the
cache work won't remove it.
Fixes: b9358bdbc713 ("RDMA/mlx5: Fix locking in MR cache work queue")
Signed-off-by: Aharon Landau <aharonl@xxxxxxxxxx>
Reviewed-by: Shay Drory <shayd@xxxxxxxxxx>
Signed-off-by: Leon Romanovsky <leonro@xxxxxxxxxx>
---
drivers/infiniband/hw/mlx5/mr.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/infiniband/hw/mlx5/mr.c b/drivers/infiniband/hw/mlx5/mr.c
index 4a01a0ad7c90..1eef74b952b6 100644
--- a/drivers/infiniband/hw/mlx5/mr.c
+++ b/drivers/infiniband/hw/mlx5/mr.c
@@ -614,6 +614,7 @@ static void mlx5_mr_cache_free(struct mlx5_ib_dev *dev, struct mlx5_ib_mr *mr)
{
struct mlx5_cache_ent *ent = mr->cache_ent;
+ WRITE_ONCE(dev->cache.last_add, jiffies);
spin_lock_irq(&ent->lock);
list_add_tail(&mr->list, &ent->head);
ent->available_mrs++;
--
2.35.1
