tree 985a28185e02c467f4685798c65653ac1cd69839
parent e7b92d7b53343119173558302ecfb3986ae0fbd6
author Kenny Root <kroot@google.com> 1284500981 -0700
committer Kenny Root <kroot@google.com> 1284500981 -0700

Free AssetManager weak refs before unmounting

AssetManagers are kept in WeakReference pools so there's a change
another thread in the system_server has opened a file on the external
card. Attempt to force a garbage collection to free these references
each time we're about to unmount a volume on the external storage.

Change-Id: I6e816e8c67b179887e488dc6758b43bcdd5914fb