nits

872a63e1 · rsc · 766ba5cc · 872a63e1
--- a/bio.c
+++ b/bio.c
@@ -96,8 +96,7 @@ bget(uint dev, uint sector)
  panic("bget: no buffers");
 }
-// Return a B_BUSY buf with the contents of the indicated
+// Return a B_BUSY buf with the contents of the indicated disk sector.
-// disk sector.
 struct buf*
 bread(uint dev, uint sector)
 {
@@ -114,8 +113,7 @@ bread(uint dev, uint sector)
  return b;
 }
-// Write buf's contents to disk.
+// Write buf's contents to disk.  Must be locked.
-// Must be locked.
 void
 bwrite(struct buf *b)
 {