tree 8c10aa364bf407690bba947df16f81da2996d732
parent 077839ab239f0aeae95e0b3814da70f6a0eb9699
author David Anderson <dvander@google.com> 1576645575 -0800
committer David Anderson <dvander@google.com> 1580241878 -0800

remount: Use /data for backing scratch storage.

Currently, this is only enabled for Virtual A/B devices. When /data uses
F2FS, then proper pinning support must be enabled.

Because /data cannot be mounted in recovery, we can't delete the scratch
image backed by /data while in fastbootd. Instead, we mark it as
disabled in /metadata. The remount command now has an init script that
checks for and removes a disabled scratch partition.

Bug: 134949511
Test: adb remount on V A/B device with patched F2FS
Change-Id: Ifc8720378259654472d3822e97059b6c366f601d