diff options
Diffstat (limited to 'include/rdma/ib_verbs.h')
| -rw-r--r-- | include/rdma/ib_verbs.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index 319e69106a26..d3efd22943e9 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -1357,6 +1357,17 @@ struct ib_fmr_attr { struct ib_umem; +enum rdma_remove_reason { + /* Userspace requested uobject deletion. Call could fail */ + RDMA_REMOVE_DESTROY, + /* Context deletion. This call should delete the actual object itself */ + RDMA_REMOVE_CLOSE, + /* Driver is being hot-unplugged. This call should delete the actual object itself */ + RDMA_REMOVE_DRIVER_REMOVE, + /* Context is being cleaned-up, but commit was just completed */ + RDMA_REMOVE_DURING_CLEANUP, +}; + struct ib_rdmacg_object { #ifdef CONFIG_CGROUP_RDMA struct rdma_cgroup *cg; /* owner rdma cgroup */ @@ -1379,6 +1390,13 @@ struct ib_ucontext { struct list_head rwq_ind_tbl_list; int closing; + /* locking the uobjects_list */ + struct mutex uobjects_lock; + struct list_head uobjects; + /* protects cleanup process from other actions */ + struct rw_semaphore cleanup_rwsem; + enum rdma_remove_reason cleanup_reason; + struct pid *tgid; #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING struct rb_root umem_tree; @@ -1409,8 +1427,11 @@ struct ib_uobject { int id; /* index into kernel idr */ struct kref ref; struct rw_semaphore mutex; /* protects .live */ + atomic_t usecnt; /* protects exclusive access */ struct rcu_head rcu; /* kfree_rcu() overhead */ int live; + + const struct uverbs_obj_type *type; }; struct ib_udata { |