commit 47c7d7f50cda10798afc76f418b3626a7e52a376
author Kelvin Zhang <zhangkelvin@google.com> Wed Dec 09 12:32:16 2020 -0500
committer Kelvin Zhang <zhangkelvin@google.com> Thu Dec 10 14:16:03 2020 -0500
tree a61ee42bde85a387de7a6c8620b608b88893d25c
parent 2379fa93854114e714dc74324e607584b5c5da26

Skip SOURCE_COPY with same src/dst extent

Test: treehugger
Change-Id: I9e8301704b21850c8f836d83655b4c85ae3d843e

payload_consumer/vabc_partition_writer.cc

diff --git a/payload_consumer/vabc_partition_writer.cc b/payload_consumer/vabc_partition_writer.cc
index 5cb7989..2479132 100644
--- a/payload_consumer/vabc_partition_writer.cc
+++ b/payload_consumer/vabc_partition_writer.cc
@@ -102,6 +102,9 @@
   std::vector<uint8_t> buffer(block_size);
 
   for (const auto& cow_op : converted) {
+    if (cow_op.src_block == cow_op.dst_block) {
+      continue;
+    }
     switch (cow_op.op) {
       case CowOperation::CowCopy:
         TEST_AND_RETURN_FALSE(