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ANDROID: sched: Add rvh for cpu controller cgroup can attach

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Add a restricted vendor hook to check whether a set of tasks can
move to other cgroup.

Bug: 175808144

Signed-off-by: Choonghoon Park <choong.park@samsung.com>
Change-Id: If7bac83e0d2d1069b1436331989c3926645eab19
This commit is contained in:
Choonghoon Park 2020-12-16 13:31:34 +09:00
parent 0e9cdc9863
commit efd8dbe42d
3 changed files with 8 additions and 0 deletions
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1
drivers/android/vendor_hooks.c
View File

@ -114,4 +114,5 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_place_entity);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_update_cpu_capacity);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_update_misfit_status);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_cpu_cgroup_attach);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_cpu_cgroup_can_attach);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_map_util_freq);

4
include/trace/hooks/sched.h
View File

@ -190,6 +190,10 @@ DECLARE_RESTRICTED_HOOK(android_rvh_cpu_cgroup_attach,
TP_PROTO(struct cgroup_taskset *tset),
TP_ARGS(tset), 1);
DECLARE_RESTRICTED_HOOK(android_rvh_cpu_cgroup_can_attach,
TP_PROTO(struct cgroup_taskset *tset, int *retval),
TP_ARGS(tset, retval), 1);
DECLARE_HOOK(android_vh_map_util_freq,
TP_PROTO(unsigned long util, unsigned long freq,
unsigned long cap, unsigned long *next_freq),

3
kernel/sched/core.c
View File

@ -8369,6 +8369,9 @@ static int cpu_cgroup_can_attach(struct cgroup_taskset *tset)
if (ret)
break;
}
trace_android_rvh_cpu_cgroup_can_attach(tset, &ret);
return ret;
}