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RDMA/mlx5: Add a missing update of cache->last_add

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Update cache->last_add when returning an MR to the cache so that the cache
work won't remove it.

Fixes: b9358bdbc7 ("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>
This commit is contained in:
Aharon Landau 2022-04-04 11:58:04 +03:00 committed by Jason Gunthorpe
parent 84c2362fb6
commit 1d735eeee6
1 changed files with 1 additions and 0 deletions
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1
drivers/infiniband/hw/mlx5/mr.c
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@ -627,6 +627,7 @@ static void mlx5_mr_cache_free(struct mlx5_ib_dev *dev, struct mlx5_ib_mr *mr)
{ {
struct mlx5_cache_ent *ent = mr->cache_ent; struct mlx5_cache_ent *ent = mr->cache_ent;
WRITE_ONCE(dev->cache.last_add, jiffies);
spin_lock_irq(&ent->lock); spin_lock_irq(&ent->lock);
list_add_tail(&mr->list, &ent->head); list_add_tail(&mr->list, &ent->head);
ent->available_mrs++; ent->available_mrs++;