commit 07d03c4d260b804c07f7ac927515b26c84c9a4ea
author Ady Abraham <adyabr@google.com> Wed Sep 27 19:15:08 2023 -0700
committer Ady Abraham <adyabr@google.com> Mon Oct 02 19:03:52 2023 +0000
tree b0063a63627e1f66177597807523035c4bc4698d
parent aefb330cc0317bdd18d5bbc5ea51cf00ecabf66b

SF: fix binder thread priority

Add setMinSchedulerPolicy to all binder interfaces SF exposes.
It was missing from gui::ISurfaceComposer and
gui::IDisplayEventConnection.

Test: presubmit
Bug: 299378819
Change-Id: Ia0d99efa5a3bc58625c320d4df3c08bb597d2e38

services/surfaceflinger/main_surfaceflinger.cpp

diff --git a/services/surfaceflinger/main_surfaceflinger.cpp b/services/surfaceflinger/main_surfaceflinger.cpp
index cf23169..9599452 100644
--- a/services/surfaceflinger/main_surfaceflinger.cpp
+++ b/services/surfaceflinger/main_surfaceflinger.cpp
@@ -149,6 +149,9 @@
 
     // publish gui::ISurfaceComposer, the new AIDL interface
     sp<SurfaceComposerAIDL> composerAIDL = sp<SurfaceComposerAIDL>::make(flinger);
+    if (flags::misc1()) {
+        composerAIDL->setMinSchedulerPolicy(SCHED_FIFO, newPriority);
+    }
     sm->addService(String16("SurfaceFlingerAIDL"), composerAIDL, false,
                    IServiceManager::DUMP_FLAG_PRIORITY_CRITICAL | IServiceManager::DUMP_FLAG_PROTO);