tree ae1fb5763f8a0294098868a77b16254c9e46f281
parent 1a17b09174b47e08b13077f803081918b13c0722
author Mark Salyzyn <salyzyn@google.com> 1555012699 -0700
committer Mark Salyzyn <salyzyn@google.com> 1555023894 -0700

fs_mgr: overlay check shared blocks for / if /system is not

For bringup devices that do not have right-sized partition, and if
/system is now root, check / to be sure.

Consider unshare blocks for ext4 as dead code, provide a strong
message to caller to provide all the dependencies to overlayfs.

Test: adb-remount-test.sh
Bug: 130327601
Change-Id: Iffa7c5f24d8f409e71f89fe9ece274d8c476f6fc