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-rw-r--r--drivers/infiniband/core/restrack.c45
-rw-r--r--include/rdma/restrack.h2
2 files changed, 45 insertions, 2 deletions
diff --git a/drivers/infiniband/core/restrack.c b/drivers/infiniband/core/restrack.c
index 4cad0cd9aa0c..efddd13e3edb 100644
--- a/drivers/infiniband/core/restrack.c
+++ b/drivers/infiniband/core/restrack.c
@@ -17,9 +17,52 @@ void rdma_restrack_init(struct rdma_restrack_root *res)
init_rwsem(&res->rwsem);
}
+static const char *type2str(enum rdma_restrack_type type)
+{
+ static const char * const names[RDMA_RESTRACK_MAX] = {
+ [RDMA_RESTRACK_PD] = "PD",
+ [RDMA_RESTRACK_CQ] = "CQ",
+ [RDMA_RESTRACK_QP] = "QP",
+ [RDMA_RESTRACK_CM_ID] = "CM_ID",
+ [RDMA_RESTRACK_MR] = "MR",
+ };
+
+ return names[type];
+};
+
void rdma_restrack_clean(struct rdma_restrack_root *res)
{
- WARN_ON_ONCE(!hash_empty(res->hash));
+ struct rdma_restrack_entry *e;
+ char buf[TASK_COMM_LEN];
+ struct ib_device *dev;
+ const char *owner;
+ int bkt;
+
+ if (hash_empty(res->hash))
+ return;
+
+ dev = container_of(res, struct ib_device, res);
+ pr_err("restrack: %s", CUT_HERE);
+ pr_err("restrack: BUG: RESTRACK detected leak of resources on %s\n",
+ dev->name);
+ hash_for_each(res->hash, bkt, e, node) {
+ if (rdma_is_kernel_res(e)) {
+ owner = e->kern_name;
+ } else {
+ /*
+ * There is no need to call get_task_struct here,
+ * because we can be here only if there are more
+ * get_task_struct() call than put_task_struct().
+ */
+ get_task_comm(buf, e->task);
+ owner = buf;
+ }
+
+ pr_err("restrack: %s %s object allocated by %s is not freed\n",
+ rdma_is_kernel_res(e) ? "Kernel" : "User",
+ type2str(e->type), owner);
+ }
+ pr_err("restrack: %s", CUT_HERE);
}
int rdma_restrack_count(struct rdma_restrack_root *res,
diff --git a/include/rdma/restrack.h b/include/rdma/restrack.h
index a56f4f200277..f3b3e3576f6a 100644
--- a/include/rdma/restrack.h
+++ b/include/rdma/restrack.h
@@ -155,7 +155,7 @@ static inline bool rdma_is_kernel_res(struct rdma_restrack_entry *res)
int __must_check rdma_restrack_get(struct rdma_restrack_entry *res);
/**
- * rdma_restrack_put() - relase resource
+ * rdma_restrack_put() - release resource
* @res: resource entry
*/
int rdma_restrack_put(struct rdma_restrack_entry *res);