tree 1f50b8d31db597dd310c874ae5f872e165468586
parent b3001b9f286193cf6791a979720fa5a97e21d809
author Jie <Jie.Hu@spreadtrum.com> 1542007562 +0800
committer Jie Hu <Jie.Hu@spreadtrum.com> 1542263137 +0000

Add fsync for renaming user ce key path

Device can't start up after the following steps:
1. set screen lock to PIN/Pattern/Password
2. set screen lock to Swipe/None
3. power down immediately after pressing "YES, REMOVE"
4. reboot

failed log:
Failed to read from /data/misc/vold/user_keys/ce/0/current/keymaster_key_blob

root cause:
flushing data failed because of power down

issue:
https://partnerissuetracker.corp.google.com/u/1/issues/119382750