3742 zfs comments need cleaner, more consistent style
Submitted by:   Will Andrews <willa@spectralogic.com>
Submitted by:   Alan Somers <alans@spectralogic.com>
Reviewed by:    Matthew Ahrens <mahrens@delphix.com>
Reviewed by:    George Wilson <george.wilson@delphix.com>
Reviewed by:    Eric Schrock <eric.schrock@delphix.com>

@@ -55,30 +55,29 @@
         uint8_t r_write_wanted; /* writer wants to lock this range */
         uint8_t r_read_wanted;  /* reader wants to lock this range */
 } rl_t;
 
 /*
- * Lock a range (offset, length) as either shared (READER)
- * or exclusive (WRITER or APPEND). APPEND is a special type that
- * is converted to WRITER that specified to lock from the start of the
- * end of file.  zfs_range_lock() returns the range lock structure.
+ * Lock a range (offset, length) as either shared (RL_READER)
+ * or exclusive (RL_WRITER or RL_APPEND).  RL_APPEND is a special type that
+ * is converted to RL_WRITER that specified to lock from the start of the
+ * end of file.  Returns the range lock structure.
  */
 rl_t *zfs_range_lock(znode_t *zp, uint64_t off, uint64_t len, rl_type_t type);
 
-/*
- * Unlock range and destroy range lock structure.
- */
+/* Unlock range and destroy range lock structure. */
 void zfs_range_unlock(rl_t *rl);
 
 /*
  * Reduce range locked as RW_WRITER from whole file to specified range.
  * Asserts the whole file was previously locked.
  */
 void zfs_range_reduce(rl_t *rl, uint64_t off, uint64_t len);
 
 /*
- * AVL comparison function used to compare range locks
+ * AVL comparison function used to order range locks
+ * Locks are ordered on the start offset of the range.
  */
 int zfs_range_compare(const void *arg1, const void *arg2);
 
 #endif /* _KERNEL */