Set stune groups from set_sched_policy. (aa45cb85) · Commits · e / os / android_system_core

libcutils/sched_policy.c

+20 −2

Original line number	Diff line number	Diff line
		@@ -66,9 +66,11 @@ static int system_bg_cpuset_fd = -1;
		static int bg_cpuset_fd = -1;
		static int fg_cpuset_fd = -1;
		static int ta_cpuset_fd = -1; // special cpuset for top app
		#endif

		// File descriptors open to /dev/stune/../tasks, setup by initialize, or -1 on error
		static int bg_schedboost_fd = -1;
		static int fg_schedboost_fd = -1;
		#endif

		/* Add tid to the scheduling group defined by the policy */
		static int add_tid_to_cgroup(int tid, int fd)
		@@ -313,10 +315,12 @@ int set_cpuset_policy(int tid, SchedPolicy policy)
		return -errno;
		}

		#ifdef USE_SCHEDBOOST
		if (boost_fd > 0 && add_tid_to_cgroup(tid, boost_fd) != 0) {
		if (errno != ESRCH && errno != ENOENT)
		return -errno;
		}
		#endif

		return 0;
		#endif
		@@ -373,19 +377,26 @@ int set_sched_policy(int tid, SchedPolicy policy)
		#endif

		if (__sys_supports_schedgroups) {
		int fd;
		int fd = -1;
		int boost_fd = -1;
		switch (policy) {
		case SP_BACKGROUND:
		fd = bg_cgroup_fd;
		boost_fd = bg_schedboost_fd;
		break;
		case SP_FOREGROUND:
		case SP_AUDIO_APP:
		case SP_AUDIO_SYS:
		fd = fg_cgroup_fd;
		boost_fd = bg_schedboost_fd;
		break;
		case SP_TOP_APP:
		fd = fg_cgroup_fd;
		boost_fd = fg_schedboost_fd;
		break;
		default:
		fd = -1;
		boost_fd = -1;
		break;
		}

		@@ -394,6 +405,13 @@ int set_sched_policy(int tid, SchedPolicy policy)
		if (errno != ESRCH && errno != ENOENT)
		return -errno;
		}

		#ifdef USE_SCHEDBOOST
		if (boost_fd > 0 && add_tid_to_cgroup(tid, boost_fd) != 0) {
		if (errno != ESRCH && errno != ENOENT)
		return -errno;
		}
		#endif
		} else {
		struct sched_param param;