HFI1: track receive TIDs in a tree

kernel/include/hfi1/user_exp_rcv.h

@@ -82,6 +82,14 @@ struct tid_rb_node {
 	u32 len;
 	u32 rcventry;
 	struct tid_group *grp;
+	bool freed;
+
+	struct rb_root *rb_root;
+	struct hfi1_filedata *fd;
+	unsigned long start;
+	unsigned long end;
+	struct rb_node rb_node;
+	struct deferred_unmap_range *range;
 };
 
 struct tid_pageset {

kernel/include/process.h

@@ -585,6 +585,8 @@ struct process {
 	void *hfi1_events;
 	size_t hfi1_cq_comps_len;
 	ihk_spinlock_t hfi1_lock;
+	struct rb_root hfi1_reg_tree;
+	struct rb_root hfi1_inv_tree;
 };
 
 /*