nits

diff --git a/bio.c b/bio.c
index 7f5d158ec0113cba5d620fbe89d065df1a1fceeb..08eee7ce90d3793438a2dbe11629b05c0108e0fd 100644 (file)
--- a/bio.c
+++ b/bio.c
@@ -4,7 +4,7 @@
 // holding cached copies of disk block contents.
 // Each buf has two state bits B_BUSY and B_VALID.
 // If B_BUSY is set, it means that some code is currently
-// modifying buf, so other code is not allowed to look at it.
+// using buf, so other code is not allowed to use it.
 // To wait for a buffer that is B_BUSY, sleep on buf.
 // (See bget below.)
 // 

diff --git a/fs.c b/fs.c
index 3b39a420a802f90d91f6162120cf929b459a5807..58893b1eae64fb9c50f84dab7d7c62804c850dff 100644 (file)
--- a/fs.c
+++ b/fs.c
@@ -6,7 +6,7 @@
 //   + Directories: inode with special contents (list of other inodes!)
 //   + Names: paths like /usr/rtm/xv6/fs.c for convenient naming.
 //
-// Disk layout is: superblock, inodes, block not-free bitmap, data blocks.
+// Disk layout is: superblock, inodes, block in-use bitmap, data blocks.
 //
 // This file contains the low-level file system manipulation 
 // routines.  The (higher-level) system call implementations