installd: Fix set dex2oat to background after boot_complete
We need set policy before dropping capabilities.
Bug: 175178520
Test: trace and check sched_policy
Change-Id: I24114325f00f19113b360f71a427ebf6bf45dc9b
diff --git a/cmds/installd/dexopt.cpp b/cmds/installd/dexopt.cpp
index 594880a..65fc46e 100644
--- a/cmds/installd/dexopt.cpp
+++ b/cmds/installd/dexopt.cpp
@@ -1818,10 +1818,13 @@
pid_t pid = fork();
if (pid == 0) {
+ // Need to set schedpolicy before dropping privileges
+ // for cgroup migration. See details at b/175178520.
+ SetDex2OatScheduling(boot_complete);
+
/* child -- drop privileges before continuing */
drop_capabilities(uid);
- SetDex2OatScheduling(boot_complete);
if (flock(out_oat.fd(), LOCK_EX | LOCK_NB) != 0) {
PLOG(ERROR) << "flock(" << out_oat.path() << ") failed";
_exit(DexoptReturnCodes::kFlock);