[PATCH 05/11] IB/hfi1: convert __mmu_int_rb to half closed intervals

[Davidlohr Bueso]

The __mmu_int_rb interval tree really wants [a, b) intervals,
not fully closed as currently. As such convert it to use the new
interval_tree_gen.h.

Cc: Mike Marciniszyn <mike.marciniszyn@xxxxxxxxx>
Cc: Dennis Dalessandro <dennis.dalessandro@xxxxxxxxx>
Cc: Doug Ledford <dledford@xxxxxxxxxx>
Cc: linux-rdma@xxxxxxxxxxxxxxx
Signed-off-by: Davidlohr Bueso <dbueso@xxxxxxx>
---
 drivers/infiniband/hw/hfi1/mmu_rb.c | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/drivers/infiniband/hw/hfi1/mmu_rb.c b/drivers/infiniband/hw/hfi1/mmu_rb.c
index 14d2a90964c3..fb6382b2d44e 100644
--- a/drivers/infiniband/hw/hfi1/mmu_rb.c
+++ b/drivers/infiniband/hw/hfi1/mmu_rb.c
@@ -47,7 +47,7 @@
 #include <linux/list.h>
 #include <linux/rculist.h>
 #include <linux/mmu_notifier.h>
-#include <linux/interval_tree_generic.h>
+#include <linux/interval_tree_gen.h>
 
 #include "mmu_rb.h"
 #include "trace.h"
@@ -89,7 +89,7 @@ static unsigned long mmu_node_start(struct mmu_rb_node *node)
 
 static unsigned long mmu_node_last(struct mmu_rb_node *node)
 {
-	return PAGE_ALIGN(node->addr + node->len) - 1;
+	return PAGE_ALIGN(node->addr + node->len);
 }
 
 int hfi1_mmu_rb_register(void *ops_arg, struct mm_struct *mm,
@@ -195,13 +195,13 @@ static struct mmu_rb_node *__mmu_rb_search(struct mmu_rb_handler *handler,
 	trace_hfi1_mmu_rb_search(addr, len);
 	if (!handler->ops->filter) {
 		node = __mmu_int_rb_iter_first(&handler->root, addr,
-					       (addr + len) - 1);
+					       addr + len);
 	} else {
 		for (node = __mmu_int_rb_iter_first(&handler->root, addr,
-						    (addr + len) - 1);
+						    addr + len);
 		     node;
 		     node = __mmu_int_rb_iter_next(node, addr,
-						   (addr + len) - 1)) {
+						   addr + len)) {
 			if (handler->ops->filter(node, addr, len))
 				return node;
 		}
@@ -293,11 +293,10 @@ static int mmu_notifier_range_start(struct mmu_notifier *mn,
 	bool added = false;
 
 	spin_lock_irqsave(&handler->lock, flags);
-	for (node = __mmu_int_rb_iter_first(root, range->start, range->end-1);
+	for (node = __mmu_int_rb_iter_first(root, range->start, range->end);
 	     node; node = ptr) {
 		/* Guard against node removal. */
-		ptr = __mmu_int_rb_iter_next(node, range->start,
-					     range->end - 1);
+		ptr = __mmu_int_rb_iter_next(node, range->start, range->end);
 		trace_hfi1_mmu_mem_invalidate(node->addr, node->len);
 		if (handler->ops->invalidate(handler->ops_arg, node)) {
 			__mmu_int_rb_remove(node, root);
-- 
2.16.4