From: Aharon Landau aharonl@nvidia.com
[ Upstream commit 2f0e60d5e9f96341a0c8a01be8878cdb3b29ff20 ]
When an ODP MR cache entry is empty and trying to allocate it, increment the ent->miss counter and call to queue_adjust_cache_locked() to verify the entry is balanced.
Fixes: aad719dcf379 ("RDMA/mlx5: Allow MRs to be created in the cache synchronously") Link: https://lore.kernel.org/r/09503e295276dcacc92cb1d8aef1ad0961c99dc1.164494759... Signed-off-by: Aharon Landau aharonl@nvidia.com Signed-off-by: Leon Romanovsky leonro@nvidia.com Signed-off-by: Jason Gunthorpe jgg@nvidia.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/infiniband/hw/mlx5/mr.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/infiniband/hw/mlx5/mr.c b/drivers/infiniband/hw/mlx5/mr.c index 22e2f4d79743..7bb1b9d0941c 100644 --- a/drivers/infiniband/hw/mlx5/mr.c +++ b/drivers/infiniband/hw/mlx5/mr.c @@ -580,6 +580,8 @@ struct mlx5_ib_mr *mlx5_mr_cache_alloc(struct mlx5_ib_dev *dev, ent = &cache->ent[entry]; spin_lock_irq(&ent->lock); if (list_empty(&ent->head)) { + queue_adjust_cache_locked(ent); + ent->miss++; spin_unlock_irq(&ent->lock); mr = create_cache_mr(ent); if (IS_ERR(mr))