diff options
| author | Dmitry Torokhov <[email protected]> | 2023-08-30 16:06:38 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <[email protected]> | 2023-08-30 16:06:38 -0700 |
| commit | 1ac731c529cd4d6adbce134754b51ff7d822b145 (patch) | |
| tree | 143ab3f35ca5f3b69f583c84e6964b17139c2ec1 /drivers/infiniband/hw/mlx5/fs.h | |
| parent | 07b4c950f27bef0362dc6ad7ee713aab61d58149 (diff) | |
| parent | 54116d442e001e1b6bd482122043b1870998a1f3 (diff) | |
Merge branch 'next' into for-linus
Prepare input updates for 6.6 merge window.
Diffstat (limited to 'drivers/infiniband/hw/mlx5/fs.h')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/fs.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mlx5/fs.h b/drivers/infiniband/hw/mlx5/fs.h index ad320adaf321..b9734904f5f0 100644 --- a/drivers/infiniband/hw/mlx5/fs.h +++ b/drivers/infiniband/hw/mlx5/fs.h @@ -10,6 +10,7 @@ #if IS_ENABLED(CONFIG_INFINIBAND_USER_ACCESS) int mlx5_ib_fs_init(struct mlx5_ib_dev *dev); +void mlx5_ib_fs_cleanup_anchor(struct mlx5_ib_dev *dev); #else static inline int mlx5_ib_fs_init(struct mlx5_ib_dev *dev) { @@ -21,9 +22,24 @@ static inline int mlx5_ib_fs_init(struct mlx5_ib_dev *dev) mutex_init(&dev->flow_db->lock); return 0; } + +inline void mlx5_ib_fs_cleanup_anchor(struct mlx5_ib_dev *dev) {} #endif + static inline void mlx5_ib_fs_cleanup(struct mlx5_ib_dev *dev) { + /* When a steering anchor is created, a special flow table is also + * created for the user to reference. Since the user can reference it, + * the kernel cannot trust that when the user destroys the steering + * anchor, they no longer reference the flow table. + * + * To address this issue, when a user destroys a steering anchor, only + * the flow steering rule in the table is destroyed, but the table + * itself is kept to deal with the above scenario. The remaining + * resources are only removed when the RDMA device is destroyed, which + * is a safe assumption that all references are gone. + */ + mlx5_ib_fs_cleanup_anchor(dev); kfree(dev->flow_db); } #endif /* _MLX5_IB_FS_H */ |