commit 15d8b4cff2f0d521c35ca47e8f6ee17ccaedc366
author David Anderson <dvander@google.com> Fri Feb 01 16:30:31 2019 -0800
committer David Anderson <dvander@google.com> Mon Feb 04 12:47:45 2019 -0800
tree b2d5dad27227aaa7eff00bdb813e66bf844d79dd
parent b0f3c82c0f775b8e76b4ad95c864e30cf51f35a7

Call fsync after init writes to install_status.

If first-stage mounting fails when trying to boot a GSI (for example, if
AVB failed), then the boot-counter written to
/metadata/gsi/install_status may not have been synced. In this case the
device will boot loop since the boot counter is never updated.

Simple fix is to call fsync() after writing to install_status. This will
only happen during the first boot to GSI.

Bug: 122556707
Test: manual test
Change-Id: I2301f655c9b7c36d72269740f13b80bf34252844