tree b242d9d5a571150bad1e5c02f93d0bca1f1d1dfb
parent 2d45d9b42063d57f8be769555fc9c47eabe74f9a
author Zim <zezeozue@google.com> 1574154963 +0000
committer Martijn Coenen <maco@google.com> 1574438764 +0100

Add mount callback

Mounting a FUSE path needs two steps:
1. Mounting the filesystem
2. Starting the FUSE session in the FUSE daemon

The second part requires retriving an fd from (1) and the mount paths
and passing it to the FUSE daemon.

Previously, we'd return from the Vold mount call and mark the volume
as mounted while we scramble to do (2). This means there's a time
period where the Volume is marked as MOUNTED but not actually ready
and any IO access on the paths will hang forever. This could also be
misleading when interpreting bug reports.

Now, we block the Vold mount call until the FUSE session is started

Test: atest AdoptableHostTest
Bug: 144275217

Change-Id: I45238a31df71286f67ef1c65c711d0085d72e97f