Disable cache on StubVolumes
StubVolumes are managed from outside Android and can be accessed from
outside Android, i.e., from their lower filesystems.
In order to avoid cache synchronization issues, cache should be always
disabled on them.
Bug: 208964465
Test: $ touch <upper filesystem path>
Test: $ rm <lower filesystem path>
Test: $ touch <upper filesystem path>
Test: Without this change, the last "touch" command fails with the "No
Test: such file or directory" error.
Change-Id: I3b1b4c745ac3d411db5d1905f8ea59200013f758
5 files changed