Fix incrorrect usage of counting_sem_lazy_wait
Fix incrorrect usage of counting_sem_lazy_wait

Summary: facepaw

Test Plan: tests

Reviewed By: alikhtarov

Differential Revision: D2505429

fb-gh-sync-id: 12001c70257c7406c2b3d563fa6e06c4c986b4e2

yqzhang/mcrouter,facebook/mcrouter,nvaller/mcrouter,yqzhang/mcrouter,facebook/mcrouter,facebook/mcrouter,reddit/mcrouter,reddit/mcrouter,synecdoche/mcrouter,nvaller/mcrouter,synecdoche/mcrouter,yqzhang/mcrouter,yqzhang/mcrouter,synecdoche/mcrouter,facebook/mcrouter,reddit/mcrouter,nvaller/mcrouter,reddit/mcrouter,nvaller/mcrouter,synecdoche/mcrouter