Merge "Revert "Revert "[pm] remove old stage dirs on low storage""" into sc-dev
diff --git a/services/core/java/com/android/server/pm/PackageInstallerService.java b/services/core/java/com/android/server/pm/PackageInstallerService.java
index d7b2449..7fdeb27 100644
--- a/services/core/java/com/android/server/pm/PackageInstallerService.java
+++ b/services/core/java/com/android/server/pm/PackageInstallerService.java
@@ -135,6 +135,8 @@
private static final long MAX_ACTIVE_SESSIONS_NO_PERMISSION = 50;
/** Upper bound on number of historical sessions for a UID */
private static final long MAX_HISTORICAL_SESSIONS = 1048576;
+ /** Destroy sessions older than this on storage free request */
+ private static final long MAX_SESSION_AGE_ON_LOW_STORAGE_MILLIS = 8 * DateUtils.HOUR_IN_MILLIS;
/**
* Allow verification-skipping if it's a development app installed through ADB with
@@ -334,22 +336,28 @@
@GuardedBy("mSessions")
private void reconcileStagesLocked(String volumeUuid) {
- final File stagingDir = getTmpSessionDir(volumeUuid);
- final ArraySet<File> unclaimedStages = newArraySet(
- stagingDir.listFiles(sStageFilter));
-
- // We also need to clean up orphaned staging directory for staged sessions
- final File stagedSessionStagingDir = Environment.getDataStagingDirectory(volumeUuid);
- unclaimedStages.addAll(newArraySet(stagedSessionStagingDir.listFiles()));
-
+ final ArraySet<File> unclaimedStages = getStagingDirsOnVolume(volumeUuid);
// Ignore stages claimed by active sessions
for (int i = 0; i < mSessions.size(); i++) {
final PackageInstallerSession session = mSessions.valueAt(i);
unclaimedStages.remove(session.stageDir);
}
+ removeStagingDirs(unclaimedStages);
+ }
+ private ArraySet<File> getStagingDirsOnVolume(String volumeUuid) {
+ final File stagingDir = getTmpSessionDir(volumeUuid);
+ final ArraySet<File> stagingDirs = newArraySet(stagingDir.listFiles(sStageFilter));
+
+ // We also need to clean up orphaned staging directory for staged sessions
+ final File stagedSessionStagingDir = Environment.getDataStagingDirectory(volumeUuid);
+ stagingDirs.addAll(newArraySet(stagedSessionStagingDir.listFiles()));
+ return stagingDirs;
+ }
+
+ private void removeStagingDirs(ArraySet<File> stagingDirsToRemove) {
// Clean up orphaned staging directories
- for (File stage : unclaimedStages) {
+ for (File stage : stagingDirsToRemove) {
Slog.w(TAG, "Deleting orphan stage " + stage);
synchronized (mPm.mInstallLock) {
mPm.removeCodePathLI(stage);
@@ -363,6 +371,33 @@
}
}
+ /**
+ * Called to free up some storage space from obsolete installation files
+ */
+ public void freeStageDirs(String volumeUuid) {
+ final ArraySet<File> unclaimedStagingDirsOnVolume = getStagingDirsOnVolume(volumeUuid);
+ final long currentTimeMillis = System.currentTimeMillis();
+ synchronized (mSessions) {
+ for (int i = 0; i < mSessions.size(); i++) {
+ final PackageInstallerSession session = mSessions.valueAt(i);
+ if (!unclaimedStagingDirsOnVolume.contains(session.stageDir)) {
+ // Only handles sessions stored on the target volume
+ continue;
+ }
+ final long age = currentTimeMillis - session.createdMillis;
+ if (age >= MAX_SESSION_AGE_ON_LOW_STORAGE_MILLIS) {
+ // Aggressively close old sessions because we are running low on storage
+ // Their staging dirs will be removed too
+ session.abandon();
+ } else {
+ // Session is new enough, so it deserves to be kept even on low storage
+ unclaimedStagingDirsOnVolume.remove(session.stageDir);
+ }
+ }
+ }
+ removeStagingDirs(unclaimedStagingDirsOnVolume);
+ }
+
public static boolean isStageName(String name) {
final boolean isFile = name.startsWith("vmdl") && name.endsWith(".tmp");
final boolean isContainer = name.startsWith("smdl") && name.endsWith(".tmp");
diff --git a/services/core/java/com/android/server/pm/PackageInstallerSession.java b/services/core/java/com/android/server/pm/PackageInstallerSession.java
index 5429484..d0e4457 100644
--- a/services/core/java/com/android/server/pm/PackageInstallerSession.java
+++ b/services/core/java/com/android/server/pm/PackageInstallerSession.java
@@ -673,7 +673,7 @@
final Runnable r;
synchronized (mLock) {
assertNotChildLocked("StagedSession#abandon");
- assertCallerIsOwnerOrRoot();
+ assertCallerIsOwnerOrRootOrSystem();
if (isInTerminalState()) {
// We keep the session in the database if it's in a finalized state. It will be
// removed by PackageInstallerService when the last update time is old enough.
@@ -3704,7 +3704,7 @@
private void abandonNonStaged() {
synchronized (mLock) {
assertNotChildLocked("abandonNonStaged");
- assertCallerIsOwnerOrRoot();
+ assertCallerIsOwnerOrRootOrSystem();
if (mRelinquished) {
if (LOGD) Slog.d(TAG, "Ignoring abandon after commit relinquished control");
return;
diff --git a/services/core/java/com/android/server/pm/PackageManagerService.java b/services/core/java/com/android/server/pm/PackageManagerService.java
index c477546..7968f8f 100644
--- a/services/core/java/com/android/server/pm/PackageManagerService.java
+++ b/services/core/java/com/android/server/pm/PackageManagerService.java
@@ -8962,6 +8962,10 @@
if (freeBytesRequired > 0) {
smInternal.freeCache(volumeUuid, freeBytesRequired);
}
+
+ // 12. Clear temp install session files
+ mInstallerService.freeStageDirs(volumeUuid);
+
if (file.getUsableSpace() >= bytes) return;
} else {
try {