os/bluestore: fix do_write_v2 extentmap compress issue

do_write_v2 insert extentmap by aligned offset which is adjusted in
writer.do_write, if use original offset will cause extentmap can't do
compress.

Signed-off-by: chunmei liu <[email protected]>

Author: liu-chunmei

src/os/bluestore/BlueStore.cc

@@ -17521,9 +17521,6 @@ int BlueStore::_do_write_v2(
   o->extent_map.fault_range(db, offset, length);
   BlueStore::Writer wr(this, txc, &wctx, o);
   wr.do_write(offset, bl);
-  o->extent_map.compress_extent_map(offset, length);
-  o->extent_map.dirty_range(offset, length);
-  o->extent_map.maybe_reshard(offset, offset + length);
   return r;
 }
 

src/os/bluestore/Writer.cc

@@ -1376,6 +1376,9 @@ void BlueStore::Writer::do_write(
   _collect_released_allocated();
   // update statfs
   txc->statfs_delta += statfs_delta;
+  onode->extent_map.compress_extent_map(location, data_end - location);
+  onode->extent_map.dirty_range(location, data_end-location);
+  onode->extent_map.maybe_reshard(location, data_end);
   dout(25) << "result: " << std::endl << onode->print(pp_mode) << dendl;
 }