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Commit a40c6e17 authored by Li Li's avatar Li Li
Browse files

Add log to explain why freezer is not supported 

The old log is too vague to identify what's wrong with the cgroup
freezer configuration. That makes debugging unnecessarily time
consuming. Improve the log with more details.

Bug: 269312428
Test: check logcat during Android boot
Change-Id: I7c2518aef003cca990ed321e22890bddde2c5d13
parent 5fe37d0a

services/core/java/com/android/server/am/CachedAppOptimizer.java

+5 −1
Original line number Diff line number Diff line
@@ -941,11 +941,14 @@ public final class CachedAppOptimizer { 
        FileReader fr = null;



        try {

            fr = new FileReader(getFreezerCheckPath());

            String path = getFreezerCheckPath();

            Slog.d(TAG_AM, "Checking cgroup freezer: " + path);

            fr = new FileReader(path);

            char state = (char) fr.read();



            if (state == '1' || state == '0') {

                // Also check freezer binder ioctl

                Slog.d(TAG_AM, "Checking binder freezer ioctl");

                getBinderFreezeInfo(Process.myPid());

                supported = true;

            } else {
@@ -967,6 +970,7 @@ public final class CachedAppOptimizer { 
            }

        }



        Slog.d(TAG_AM, "Freezer supported: " + supported);

        return supported;

    }