tree e6dbb0977a34d052056e935d86bd3cdcc9473188
parent dfece7a3ee1b8a11abea3f55bf44df21ebc4bc79
author Elliott Hughes <enh@google.com> 1509143334 -0700
committer Elliott Hughes <enh@google.com> 1509144015 -0700

Preserve historical pthread_create scheduler behavior better.

At the cost of two flag bits for what POSIX thinks should be a boolean
choice, plus somewhat confusing behavior from pthread_attr_getinheritsched
depending on when you call it/what specific scheduler attributes you've
set in the pthread_attr_t, we can emulate the old behavior exactly and
prevent annoying SELinux denial spam caused by calls to sched_setscheduler.

Bug: http://b/68391226
Test: adb logcat on boot contains no sys_nice avc denials
Change-Id: I4f759c2c4fd1d80cceb0912d7da09d35902e2e5e