*** NO COMMENTS ***

*** 78,90 ****
   * uses method 1, while the internal arc algorithms for
   * adjusting the cache use method 2.  We therefor provide two
   * types of locks: 1) the hash table lock array, and 2) the
   * arc list locks.
   *
!  * Buffers do not have their own mutexs, rather they rely on the
!  * hash table mutexs for the bulk of their protection (i.e. most
!  * fields in the arc_buf_hdr_t are protected by these mutexs).
   *
   * buf_hash_find() returns the appropriate mutex (held) when it
   * locates the requested buffer in the hash table.  It returns
   * NULL for the mutex if the buffer was not in the table.
   *
--- 78,90 ----
   * uses method 1, while the internal arc algorithms for
   * adjusting the cache use method 2.  We therefor provide two
   * types of locks: 1) the hash table lock array, and 2) the
   * arc list locks.
   *
!  * Buffers do not have their own mutexes, rather they rely on the
!  * hash table mutexes for the bulk of their protection (i.e. most
!  * fields in the arc_buf_hdr_t are protected by these mutexes).
   *
   * buf_hash_find() returns the appropriate mutex (held) when it
   * locates the requested buffer in the hash table.  It returns
   * NULL for the mutex if the buffer was not in the table.
   *
*** 2634,2644 ****
          if (freeable)
                  arc_hdr_destroy(hdr);
  }
  
  /*
!  * "Read" the block block at the specified DVA (in bp) via the
   * cache.  If the block is found in the cache, invoke the provided
   * callback immediately and return.  Note that the `zio' parameter
   * in the callback will be NULL in this case, since no IO was
   * required.  If the block is not in the cache pass the read request
   * on to the spa with a substitute callback function, so that the
--- 2634,2644 ----
          if (freeable)
                  arc_hdr_destroy(hdr);
  }
  
  /*
!  * "Read" the block at the specified DVA (in bp) via the
   * cache.  If the block is found in the cache, invoke the provided
   * callback immediately and return.  Note that the `zio' parameter
   * in the callback will be NULL in this case, since no IO was
   * required.  If the block is not in the cache pass the read request
   * on to the spa with a substitute callback function, so that the