update rdsn: optimize lock use; avoid useless memory copy

Summary: Ref T10566

Test Plan: N/A

Reviewers: sunweijie, cailiuyang, heyuchen, wutao1, laiyingchun

Reviewed By: cailiuyang

Subscribers: #pegasus

Maniphest Tasks: T10566

Differential Revision: https://phabricator.d.xiaomi.net/D85818

rdsn @ 9a702c8b

-Subproject commit 06ce27dce69caf30602d7d596d6d008ce7c63de3
+Subproject commit 9a702c8bca81d962f8a2e6f69ef8f2342520af0d