| From 88debdc063ec692615f8ef61d90355f3ce28fa1e Mon Sep 17 00:00:00 2001 |
| From: Sasha Levin <sashal@kernel.org> |
| Date: Mon, 4 Apr 2022 11:58:04 +0300 |
| Subject: RDMA/mlx5: Add a missing update of cache->last_add |
| |
| From: Aharon Landau <aharonl@nvidia.com> |
| |
| [ Upstream commit 1d735eeee63a0beb65180ca0224f239cc0c9f804 ] |
| |
| 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") |
| Link: https://lore.kernel.org/r/c99f076fce4b44829d434936bbcd3b5fc4c95020.1649062436.git.leonro@nvidia.com |
| Signed-off-by: Aharon Landau <aharonl@nvidia.com> |
| Reviewed-by: Shay Drory <shayd@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 | 1 + |
| 1 file changed, 1 insertion(+) |
| |
| diff --git a/drivers/infiniband/hw/mlx5/mr.c b/drivers/infiniband/hw/mlx5/mr.c |
| index d3b2d02a4872..d40a1460ef97 100644 |
| --- a/drivers/infiniband/hw/mlx5/mr.c |
| +++ b/drivers/infiniband/hw/mlx5/mr.c |
| @@ -632,6 +632,7 @@ 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 |
| |
