[PATCH] BTT patch: (2/3) per-IO stream output

[blktrace.git] / btt / dip_rb.c

diff --git a/btt/dip_rb.c b/btt/dip_rb.c
index 6ff09dff70116dd44869c219fa83488984eafb32..cfc607f47f57eb7d824a8f2f7ffce0eec45c1c2e 100644 (file)
--- a/btt/dip_rb.c
+++ b/btt/dip_rb.c
@@ -21,7 +21,7 @@
 #include <stdio.h>
 #include "globals.h"
 
-void rb_insert(struct rb_root *root, struct io *iop)
+int rb_insert(struct rb_root *root, struct io *iop)
 {
        struct io *__iop;
        struct rb_node *parent = NULL;
@@ -39,11 +39,12 @@ void rb_insert(struct rb_root *root, struct io *iop)
                else if (s > __s)
                        p = &(*p)->rb_right;
                else
-                       p = &(*p)->rb_right;
+                       return 0;
        }
 
        rb_link_node(&iop->rb_node, parent, p);
        rb_insert_color(&iop->rb_node, root);
+       return 1;
 }
 
 struct io *rb_find_sec(struct rb_root *root, __u64 sec)