Commit 7ae06ade authored May 13, 2025 by TYM Tsai

Reduce to hold mUsersLock for the system user

If the caller is the system, the exists method avoid calling to
LocalService.exists, which can reduce the holding of mUsersLock

This is just an optimization of using this method for PMS.

Bug: 410481999
Flag: EXEMPT bug fix
Test: atest CtsPackageInstallTestCases
Test: atest CtsPackageManagerTestCases
Change-Id: Ifc7362aa6ca04ae0b25ccbae90d8ab9486737db5

parent 664cee66

services/core/java/com/android/server/pm/UserManagerService.java

+1 −1

Original line number	Diff line number	Diff line
		@@ -3226,7 +3226,7 @@ public class UserManagerService extends IUserManager.Stub {

		/** Called by PackageManagerService */
		public boolean exists(@UserIdInt int userId) {
		return mLocalService.exists(userId);
		return userId == UserHandle.USER_SYSTEM \|\| mLocalService.exists(userId);
		}

		/**