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ANDROID: vendor_hooks: Export the tracepoints sched_stat_iowait, sched_stat_blocked, sched_stat_wait to let modules probe them

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Get task info about scheduling delay, iowait, and block time.

It is used to get thread scheduling info when thread happened abnormal situation.

Bug: 189415303
Change-Id: Ib6b548f8a78de5b26d555e9a89e3cc79ea2d1024
Signed-off-by: Liujie Xie <xieliujie@oppo.com>
(cherry picked from commit a6bb1af39d)
(cherry picked from commit 6d8d2ab52facfd6d5de2715e2470872e6a70cf22)
(cherry picked from commit c3c2917768)
This commit is contained in:
Liujie Xie
2021-05-28 10:26:41 +08:00
committed by Treehugger Robot
parent 102b4685b3
commit 527ffd22ad
1 changed files with 5 additions and 0 deletions
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5
kernel/sched/core.c
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@@ -115,6 +115,11 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(sched_util_est_cfs_tp);
EXPORT_TRACEPOINT_SYMBOL_GPL(sched_util_est_se_tp);
EXPORT_TRACEPOINT_SYMBOL_GPL(sched_update_nr_running_tp);
EXPORT_TRACEPOINT_SYMBOL_GPL(sched_switch);
#ifdef CONFIG_SCHEDSTATS
EXPORT_TRACEPOINT_SYMBOL_GPL(sched_stat_wait);
EXPORT_TRACEPOINT_SYMBOL_GPL(sched_stat_iowait);
EXPORT_TRACEPOINT_SYMBOL_GPL(sched_stat_blocked);
#endif
DEFINE_PER_CPU_SHARED_ALIGNED(struct rq, runqueues);
EXPORT_SYMBOL_GPL(runqueues);