[pm] reduce lock contention on createSession

mInstallerUid doesn't need to be locked and it has been changed to volatile since ag/14040815. Removing the synchronized block so that the creation of one session is not blocked by the validation of another.

Change-Id: Ife08af651656a81a59be0c1ffb2a30a84e390f8c
BUG: 319178414
FIXES: 319178414
Test: n/a
FLAG: EXEMPT bug fix

1 files changed, 1 insertions, 3 deletions

diff --git a/services/core/java/com/android/server/pm/PackageInstallerSession.java b/services/core/java/com/android/server/pm/PackageInstallerSession.java
index 512b19582237..6ea5369040fe 100644
--- a/services/core/java/com/android/server/pm/PackageInstallerSession.java
+++ b/services/core/java/com/android/server/pm/PackageInstallerSession.java
@@ -4445,9 +4445,7 @@ public class PackageInstallerSession extends IPackageInstallerSession.Stub {
      * @return the uid of the owner this session
      */
     public int getInstallerUid() {
-        synchronized (mLock) {
-            return mInstallerUid;
-        }
+        return mInstallerUid;
     }
 
     /**