IB/hfi1: Adjust last address values for intervals

Last address values for intervals in the interval RB tree
nodes should be non-inclusive in order to avoid confusing
ranges.

Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Reviewed-by: Dean Luick <dean.luick@intel.com>
Signed-off-by: Mitko Haralanov <mitko.haralanov@intel.com>
Signed-off-by: Jubin John <jubin.john@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

diff --git a/drivers/staging/rdma/hfi1/mmu_rb.c b/drivers/staging/rdma/hfi1/mmu_rb.c
index 6edd5f0220577b13157b8e4c4b53e465c0dee8e0..c7ad0164ea9a615a856d4f3f9ece91ac34615cad 100644 (file)
--- a/drivers/staging/rdma/hfi1/mmu_rb.c
+++ b/drivers/staging/rdma/hfi1/mmu_rb.c
@@ -90,7 +90,7 @@ static unsigned long mmu_node_start(struct mmu_rb_node *node)
 
 static unsigned long mmu_node_last(struct mmu_rb_node *node)
 {
-       return ((node->addr & PAGE_MASK) + node->len);
+       return PAGE_ALIGN((node->addr & PAGE_MASK) + node->len) - 1;
 }
 
 int hfi1_mmu_rb_register(struct rb_root *root, struct mmu_rb_ops *ops)
@@ -281,8 +281,8 @@ static void mmu_notifier_mem_invalidate(struct mmu_notifier *mn,
        unsigned long flags;
 
        spin_lock_irqsave(&handler->lock, flags);
-       for (node = __mmu_int_rb_iter_first(root, start, end); node;
-            node = __mmu_int_rb_iter_next(node, start, end)) {
+       for (node = __mmu_int_rb_iter_first(root, start, end - 1); node;
+            node = __mmu_int_rb_iter_next(node, start, end - 1)) {
                hfi1_cdbg(MMU, "Invalidating node addr 0x%llx, len %u",
                          node->addr, node->len);
                if (handler->ops->invalidate(root, node))