This series refactors the usage of FDs in both IB core and mlx5 driver. It includes: - Simplify destruction of FD uobjects by making them pure uobjects and use a generic release method for all struct file operations. - Make ib_uverbs_async_event_file into a uobject. - Improve locking in few related areas. - Simplify type usage for ib_uverbs_async_handler(). This refactoring series may be followed by some other series that will allow the async FD to be allocated separately from the context and then enables having the alloc_context command over ioctl. Yishai Jason Gunthorpe (14): RDMA/mlx5: Use RCU and direct refcounts to keep memory alive RDMA/core: Simplify destruction of FD uobjects RDMA/mlx5: Simplify devx async commands RDMA/core: Do not allow alloc_commit to fail RDMA/core: Make ib_ucq_object use ib_uevent_object RDMA/core: Do not erase the type of ib_cq.uobject RDMA/core: Do not erase the type of ib_qp.uobject RDMA/core: Do not erase the type of ib_srq.uobject RDMA/core: Do not erase the type of ib_wq.uobject RDMA/core: Simplify type usage for ib_uverbs_async_handler() RDMA/core: Fix locking in ib_uverbs_event_read RDMA/core: Remove the ufile arg from rdma_alloc_begin_uobject RDMA/core: Make ib_uverbs_async_event_file into a uobject RDMA/core: Use READ_ONCE for ib_ufile.async_file drivers/infiniband/core/Makefile | 3 +- drivers/infiniband/core/core_priv.h | 2 +- drivers/infiniband/core/nldev.c | 3 +- drivers/infiniband/core/rdma_core.c | 189 ++++++------- drivers/infiniband/core/rdma_core.h | 45 +--- drivers/infiniband/core/uverbs.h | 28 +- drivers/infiniband/core/uverbs_cmd.c | 201 +++++++------- drivers/infiniband/core/uverbs_ioctl.c | 45 +--- drivers/infiniband/core/uverbs_main.c | 292 ++++++--------------- drivers/infiniband/core/uverbs_std_types.c | 44 +++- .../infiniband/core/uverbs_std_types_async_fd.c | 33 +++ drivers/infiniband/core/uverbs_std_types_cq.c | 19 +- drivers/infiniband/core/uverbs_uapi.c | 7 +- drivers/infiniband/hw/mlx5/devx.c | 159 +++++------ include/rdma/ib_verbs.h | 13 +- include/rdma/uverbs_std_types.h | 13 +- include/rdma/uverbs_types.h | 33 ++- include/uapi/rdma/ib_user_ioctl_cmds.h | 1 + 18 files changed, 494 insertions(+), 636 deletions(-) create mode 100644 drivers/infiniband/core/uverbs_std_types_async_fd.c -- 1.8.3.1
