mocktikv: fix data race in mocktikv split (#12414)#19711

Merged

zz-jason merged 2 commits intopingcap:release-3.0from ti-srebot:release-3.0-ea6d508d9b43

Sep 3, 2020

+5-5

Commits on Sep 2, 2020

cherry pick pingcap#12414 to release-3.0

lysu
authored and
ti-srebot
committed

Commits on Sep 3, 2020

Merge branch 'release-3.0' into release-3.0-ea6d508d9b43
ti-srebot
authored