From 527ffd22ade0b1104dea70fc9acb2b1dbcb780fc Mon Sep 17 00:00:00 2001 From: Liujie Xie Date: Fri, 28 May 2021 10:26:41 +0800 Subject: [PATCH] ANDROID: vendor_hooks: Export the tracepoints sched_stat_iowait, sched_stat_blocked, sched_stat_wait to let modules probe them 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 (cherry picked from commit a6bb1af39d11ef0360cb34bb31b7224ca4db031f) (cherry picked from commit 6d8d2ab52facfd6d5de2715e2470872e6a70cf22) (cherry picked from commit c3c29177681354b815763c3592e227b2288f341d) --- kernel/sched/core.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 6e4557b20b17..b35b9d881444 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -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);