Merge changes from topic 'stune' into nyc-mr1-dev
* changes:
Add support for top-app stune group.
Set stune groups from set_sched_policy.
diff --git a/libcutils/sched_policy.c b/libcutils/sched_policy.c
index ac12f2e..c097a12 100644
--- a/libcutils/sched_policy.c
+++ b/libcutils/sched_policy.c
@@ -66,9 +66,12 @@
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
+static int ta_schedboost_fd = -1;
/* Add tid to the scheduling group defined by the policy */
static int add_tid_to_cgroup(int tid, int fd)
@@ -138,6 +141,8 @@
ta_cpuset_fd = open(filename, O_WRONLY | O_CLOEXEC);
#ifdef USE_SCHEDBOOST
+ filename = "/dev/stune/top-app/tasks";
+ ta_schedboost_fd = open(filename, O_WRONLY | O_CLOEXEC);
filename = "/dev/stune/foreground/tasks";
fg_schedboost_fd = open(filename, O_WRONLY | O_CLOEXEC);
filename = "/dev/stune/tasks";
@@ -294,11 +299,11 @@
case SP_AUDIO_APP:
case SP_AUDIO_SYS:
fd = fg_cpuset_fd;
- boost_fd = bg_schedboost_fd;
+ boost_fd = fg_schedboost_fd;
break;
case SP_TOP_APP :
fd = ta_cpuset_fd;
- boost_fd = fg_schedboost_fd;
+ boost_fd = ta_schedboost_fd;
break;
case SP_SYSTEM:
fd = system_bg_cpuset_fd;
@@ -313,10 +318,12 @@
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 +380,26 @@
#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 = fg_schedboost_fd;
+ break;
case SP_TOP_APP:
fd = fg_cgroup_fd;
+ boost_fd = ta_schedboost_fd;
break;
default:
fd = -1;
+ boost_fd = -1;
break;
}
@@ -394,6 +408,13 @@
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;
diff --git a/rootdir/init.rc b/rootdir/init.rc
index da3b98b..32970e4 100644
--- a/rootdir/init.rc
+++ b/rootdir/init.rc
@@ -50,12 +50,16 @@
mkdir /dev/stune
mount cgroup none /dev/stune schedtune
mkdir /dev/stune/foreground
+ mkdir /dev/stune/top-app
chown system system /dev/stune
chown system system /dev/stune/foreground
+ chown system system /dev/stune/top-app
chown system system /dev/stune/tasks
chown system system /dev/stune/foreground/tasks
+ chown system system /dev/stune/top-app/tasks
chmod 0664 /dev/stune/tasks
chmod 0664 /dev/stune/foreground/tasks
+ chmod 0664 /dev/stune/top-app/tasks
# Mount staging areas for devices managed by vold
# See storage config details at http://source.android.com/tech/storage/