RDMA/uverbs: Get rid of ucontext->tgid

Nothing uses this now, just delete it.

Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

diff --git a/drivers/infiniband/core/rdma_core.c b/drivers/infiniband/core/rdma_core.c
index 6a3acf4..752a55c 100644 (file)
--- a/drivers/infiniband/core/rdma_core.c
+++ b/drivers/infiniband/core/rdma_core.c
@@ -816,7 +816,6 @@ static void ufile_destroy_ucontext(struct ib_uverbs_file *ufile,
                        ib_dev->disassociate_ucontext(ucontext);
        }
 
-       put_pid(ucontext->tgid);
        ib_rdmacg_uncharge(&ucontext->cg_obj, ib_dev,
                           RDMACG_RESOURCE_HCA_HANDLE);
 

diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c
index d77b0b9..91d3e40 100644 (file)
--- a/drivers/infiniband/core/uverbs_cmd.c
+++ b/drivers/infiniband/core/uverbs_cmd.c
@@ -117,9 +117,6 @@ ssize_t ib_uverbs_get_context(struct ib_uverbs_file *file,
        /* ufile is required when some objects are released */
        ucontext->ufile = file;
 
-       rcu_read_lock();
-       ucontext->tgid = get_task_pid(current->group_leader, PIDTYPE_PID);
-       rcu_read_unlock();
        ucontext->closing = false;
        ucontext->cleanup_retryable = false;
 
@@ -169,7 +166,6 @@ err_fd:
        put_unused_fd(resp.async_fd);
 
 err_free:
-       put_pid(ucontext->tgid);
        ib_dev->dealloc_ucontext(ucontext);
 
 err_alloc:

diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 6437e6a..0d822a9 100644 (file)
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -1500,7 +1500,6 @@ struct ib_ucontext {
 
        bool cleanup_retryable;
 
-       struct pid             *tgid;
 #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
        void (*invalidate_range)(struct ib_umem_odp *umem_odp,
                                 unsigned long start, unsigned long end);