verity: no longer need to set verify_mode

file_hasher.cc

 // Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
 // Use of this source code is governed by the GPL v2 license that can
 // be found in the LICENSE file.
 //
 // Implementation of FileHasher
 
 #define __STDC_LIMIT_MACROS 1
 #define __STDC_FORMAT_MACROS 1
 #include <errno.h>
 #include <inttypes.h>
@@ skipping 66 matching lines @@
   block_limit_ = blocks;
 
   // Now we initialize the tree
   if (dm_bht_create(&tree_, depth_, block_limit_, alg_)) {
     LOG(ERROR) << "Could not create the BH tree";
     return false;
   }
   dm_bht_set_write_cb(&tree_, FileHasher::WriteCallback);
   // No reading is needed.
   dm_bht_set_read_cb(&tree_, dm_bht_zeroread_callback);
-  // Ensure that we don't use the bitmaps otherwise the
-  // hashes will be wrong in intermediate nodes.
-  dm_bht_set_verify_mode(&tree_, DM_BHT_FULL_REVERIFY);
 
   return true;
 }
 
 bool FileHasher::Store() {
         return !dm_bht_sync(&tree_, reinterpret_cast<void *>(destination_));
 }
 
 bool FileHasher::Hash() {
   // TODO(wad) abstract size when dm-bht needs to do break from PAGE_SIZE
@@ skipping 23 matching lines @@
   unsigned int hash_start = 0;
   unsigned int root_end = to_sector(block_limit_ << PAGE_SHIFT);
   if (colocated) hash_start = root_end;
   printf("0 %u verity ROOT_DEV HASH_DEV %u %u %s %s\n",
          root_end, hash_start, depth_, alg_, digest);
 }
 
 }  // namespace verity