IB: remove the write-only usecnt field from struct ib_mr

[deliverable/linux.git] / drivers / infiniband / core / uverbs_cmd.c

diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c
index 5428ebee096f04347b5b13b18c19f17d372f509c..0a84182d277fb856f83de6cbd0c0543b6297e248 100644 (file)
--- a/drivers/infiniband/core/uverbs_cmd.c
+++ b/drivers/infiniband/core/uverbs_cmd.c
@@ -993,7 +993,6 @@ ssize_t ib_uverbs_reg_mr(struct ib_uverbs_file *file,
        mr->pd      = pd;
        mr->uobject = uobj;
        atomic_inc(&pd->usecnt);
-       atomic_set(&mr->usecnt, 0);
 
        uobj->object = mr;
        ret = idr_add_uobj(&ib_uverbs_mr_idr, uobj);
@@ -1091,11 +1090,6 @@ ssize_t ib_uverbs_rereg_mr(struct ib_uverbs_file *file,
                }
        }
 
-       if (atomic_read(&mr->usecnt)) {
-               ret = -EBUSY;
-               goto put_uobj_pd;
-       }
-
        old_pd = mr->pd;
        ret = mr->device->rereg_user_mr(mr, cmd.flags, cmd.start,
                                        cmd.length, cmd.hca_va,