Ricky Wai 486d760e6b
Pass bind mount storage data decision from java to zygote ...
Before we used store dirty data in system property to record
if FUSE for a user is mounted, and zygote uses it to determine
if storage mount is needed. It introduces performance issues and
not reliable.
This CL does the following changes:
- System server determines if storage dirs mount are needed, and store
the record inside system server.
- It passes the verdict to zygote so zygote just need to follow the
input.
- When emulated storage is mounted / unmounted, it will record if
FUSE for that user is ready to use, and will be used for determining
if storage dirs mount are needed when a new process starts.
- After emulated storage is mounted, it will create an async thread
to remount all storage dirs for existing app processes. As we have a
record of pids that storage dirs are not mounted yet, we can use it
directly without scanning the whole /proc in vold.
Bug: 149548518
Test: After flag is enabled, AdoptableHostTest still pass.
Change-Id: Ic99d027d42b2b9a1c7fd03070b36c44882c6e7c5
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486d760e6b