cleanup loop

0655445b · rsc · 2186f88c · 0655445b
--- a/bio.c
+++ b/bio.c
@@ -71,12 +71,9 @@ bget(uint dev, uint sector)

 loop:
  // Try for cached block.
-  for(b = bufhead.next; b != &bufhead; b = b->next)
+  for(b = bufhead.next; b != &bufhead; b = b->next){
    if((b->flags & (B_BUSY|B_VALID)) &&
-       b->dev == dev && b->sector == sector)
-      break;
-
-  if(b != &bufhead){
+       b->dev == dev && b->sector == sector){
      if(b->flags & B_BUSY){
        sleep(buf, &buf_table_lock);
        goto loop;
@@ -86,6 +83,7 @@ bget(uint dev, uint sector)
      release(&buf_table_lock);
      return b;
    }
+  }

  // Allocate fresh block.
  for(b = bufhead.prev; b != &bufhead; b = b->prev){