[PATCH 1/3] RDMA/restrack: resource-tracker should not use uobject pointers

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uobject pointers should not be used in ib core layer. they only
belong to ib uverbs. as result, resource tracker should not use
them as well.

Signed-off-by: Shamir Rabinovitch <shamir.rabinovitch@xxxxxxxxxx>
---
 drivers/infiniband/core/core_priv.h           |  1 +
 drivers/infiniband/core/cq.c                  |  1 +
 drivers/infiniband/core/restrack.c            | 16 +---------------
 drivers/infiniband/core/uverbs_cmd.c          |  3 +++
 drivers/infiniband/core/uverbs_std_types_cq.c |  1 +
 drivers/infiniband/core/verbs.c               |  3 +++
 include/rdma/restrack.h                       |  4 ++++
 7 files changed, 14 insertions(+), 15 deletions(-)

diff --git a/drivers/infiniband/core/core_priv.h b/drivers/infiniband/core/core_priv.h
index d7399d5b1cb6..4b98a967b821 100644
--- a/drivers/infiniband/core/core_priv.h
+++ b/drivers/infiniband/core/core_priv.h
@@ -324,6 +324,7 @@ static inline struct ib_qp *_ib_create_qp(struct ib_device *dev,
 	 */
 	if (attr->qp_type < IB_QPT_XRC_INI) {
 		qp->res.type = RDMA_RESTRACK_QP;
+		qp->res.user = !!uobj;
 		rdma_restrack_add(&qp->res);
 	} else
 		qp->res.valid = false;
diff --git a/drivers/infiniband/core/cq.c b/drivers/infiniband/core/cq.c
index 9271f7290005..456e8b41ce16 100644
--- a/drivers/infiniband/core/cq.c
+++ b/drivers/infiniband/core/cq.c
@@ -161,6 +161,7 @@ struct ib_cq *__ib_alloc_cq(struct ib_device *dev, void *private,
 		goto out_destroy_cq;
 
 	cq->res.type = RDMA_RESTRACK_CQ;
+	cq->res.user = false;
 	cq->res.kern_name = caller;
 	rdma_restrack_add(&cq->res);
 
diff --git a/drivers/infiniband/core/restrack.c b/drivers/infiniband/core/restrack.c
index bcc693fffd4c..fb26ee566b00 100644
--- a/drivers/infiniband/core/restrack.c
+++ b/drivers/infiniband/core/restrack.c
@@ -138,21 +138,7 @@ static struct ib_device *res_to_dev(struct rdma_restrack_entry *res)
 
 static bool res_is_user(struct rdma_restrack_entry *res)
 {
-	switch (res->type) {
-	case RDMA_RESTRACK_PD:
-		return container_of(res, struct ib_pd, res)->uobject;
-	case RDMA_RESTRACK_CQ:
-		return container_of(res, struct ib_cq, res)->uobject;
-	case RDMA_RESTRACK_QP:
-		return container_of(res, struct ib_qp, res)->uobject;
-	case RDMA_RESTRACK_CM_ID:
-		return !res->kern_name;
-	case RDMA_RESTRACK_MR:
-		return container_of(res, struct ib_mr, res)->pd->uobject;
-	default:
-		WARN_ONCE(true, "Wrong resource tracking type %u\n", res->type);
-		return false;
-	}
+	return res->user;
 }
 
 void rdma_restrack_add(struct rdma_restrack_entry *res)
diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c
index 91d3e4029cd5..ef83813aefc2 100644
--- a/drivers/infiniband/core/uverbs_cmd.c
+++ b/drivers/infiniband/core/uverbs_cmd.c
@@ -379,6 +379,7 @@ ssize_t ib_uverbs_alloc_pd(struct ib_uverbs_file *file,
 	memset(&resp, 0, sizeof resp);
 	resp.pd_handle = uobj->id;
 	pd->res.type = RDMA_RESTRACK_PD;
+	pd->res.user = true;
 	rdma_restrack_add(&pd->res);
 
 	if (copy_to_user(u64_to_user_ptr(cmd.response), &resp, sizeof resp)) {
@@ -716,6 +717,7 @@ ssize_t ib_uverbs_reg_mr(struct ib_uverbs_file *file,
 	mr->uobject = uobj;
 	atomic_inc(&pd->usecnt);
 	mr->res.type = RDMA_RESTRACK_MR;
+	mr->res.user = true;
 	rdma_restrack_add(&mr->res);
 
 	uobj->object = mr;
@@ -1039,6 +1041,7 @@ static struct ib_ucq_object *create_cq(struct ib_uverbs_file *file,
 		sizeof(resp.response_length);
 
 	cq->res.type = RDMA_RESTRACK_CQ;
+	cq->res.user = true;
 	rdma_restrack_add(&cq->res);
 
 	ret = cb(file, obj, &resp, ucore, context);
diff --git a/drivers/infiniband/core/uverbs_std_types_cq.c b/drivers/infiniband/core/uverbs_std_types_cq.c
index 5b5f2052cd52..fbd442b276e3 100644
--- a/drivers/infiniband/core/uverbs_std_types_cq.c
+++ b/drivers/infiniband/core/uverbs_std_types_cq.c
@@ -129,6 +129,7 @@ static int UVERBS_HANDLER(UVERBS_METHOD_CQ_CREATE)(
 	obj->uobject.user_handle = user_handle;
 	atomic_set(&cq->usecnt, 0);
 	cq->res.type = RDMA_RESTRACK_CQ;
+	cq->res.user = true;
 	rdma_restrack_add(&cq->res);
 
 	ret = uverbs_copy_to(attrs, UVERBS_ATTR_CREATE_CQ_RESP_CQE, &cq->cqe,
diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c
index ee5fc8408add..415b4297fc7e 100644
--- a/drivers/infiniband/core/verbs.c
+++ b/drivers/infiniband/core/verbs.c
@@ -264,6 +264,7 @@ struct ib_pd *__ib_alloc_pd(struct ib_device *device, unsigned int flags,
 	}
 
 	pd->res.type = RDMA_RESTRACK_PD;
+	pd->res.user = false;
 	pd->res.kern_name = caller;
 	rdma_restrack_add(&pd->res);
 
@@ -1890,6 +1891,7 @@ struct ib_cq *__ib_create_cq(struct ib_device *device,
 		cq->cq_context    = cq_context;
 		atomic_set(&cq->usecnt, 0);
 		cq->res.type = RDMA_RESTRACK_CQ;
+		cq->res.user = false;
 		cq->res.kern_name = caller;
 		rdma_restrack_add(&cq->res);
 	}
@@ -1972,6 +1974,7 @@ struct ib_mr *ib_alloc_mr(struct ib_pd *pd,
 		atomic_inc(&pd->usecnt);
 		mr->need_inval = false;
 		mr->res.type = RDMA_RESTRACK_MR;
+		mr->res.user = false;
 		rdma_restrack_add(&mr->res);
 	}
 
diff --git a/include/rdma/restrack.h b/include/rdma/restrack.h
index 9654d33edd98..18e0fa032b45 100644
--- a/include/rdma/restrack.h
+++ b/include/rdma/restrack.h
@@ -112,6 +112,10 @@ struct rdma_restrack_entry {
 	 * @type: various objects in restrack database
 	 */
 	enum rdma_restrack_type	type;
+	/**
+	 * @user: user resource
+	 */
+	bool			user;
 };
 
 /**
-- 
2.17.1




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