tree 29b447341b9ae445693e2538076c03aed532aaa1
parent 71f139471c11200d478e4d6dafe9189851814cd8
author JW Wang <wangchun@google.com> 1592814128 +0800
committer JW Wang <wangchun@google.com> 1592998026 +0000

Prevent a deadlock in #abandon

See b/159568595#comment1 for analysis.

1. rename cleanStageDir to cleanStageDirNotLocked to show it must be
   called without mLock held.
2. rename getChildSessions to getChildSessionsNotLocked to show it must
   be called without mLock held.
3. add cleanStageDir(List<PackageInstallerSession>) which is callable
   when mLock is held.

Bug: 159568595
Test: atest StagedInstallTest
Merged-In: I512ea07a4f8750431b306fa6e3c47a600a50b64f
Change-Id: I512ea07a4f8750431b306fa6e3c47a600a50b64f
(cherry picked from commit 4ce1273f926851bb58d44f59b5643373d4567c81)