diff --git a/include/trace/hooks/sched.h b/include/trace/hooks/sched.h index 8bd6b63ffad6..20255a477947 100644 --- a/include/trace/hooks/sched.h +++ b/include/trace/hooks/sched.h @@ -247,6 +247,14 @@ DECLARE_RESTRICTED_HOOK(android_rvh_update_thermal_stats, TP_PROTO(int cpu), TP_ARGS(cpu), 1); +DECLARE_HOOK(android_vh_do_wake_up_sync, + TP_PROTO(struct wait_queue_head *wq_head, int *done, struct sock *sk), + TP_ARGS(wq_head, done, sk)); + +DECLARE_HOOK(android_vh_set_wake_flags, + TP_PROTO(int *wake_flags, unsigned int *mode), + TP_ARGS(wake_flags, mode)); + /* macro versions of hooks are no longer required */ #endif /* _TRACE_HOOK_SCHED_H */ diff --git a/kernel/sched/vendor_hooks.c b/kernel/sched/vendor_hooks.c index f0022f949f0b..0838a1b58ac4 100644 --- a/kernel/sched/vendor_hooks.c +++ b/kernel/sched/vendor_hooks.c @@ -65,3 +65,5 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_schedule_bug); EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_sched_exec); EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_update_topology_flags_workfn); EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_update_thermal_stats); +EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_do_wake_up_sync); +EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_set_wake_flags); diff --git a/kernel/sched/wait.c b/kernel/sched/wait.c index 802d98cf2de3..0adf6bc06145 100644 --- a/kernel/sched/wait.c +++ b/kernel/sched/wait.c @@ -4,6 +4,7 @@ * * (C) 2004 Nadia Yvette Chambers, Oracle */ +#include void __init_waitqueue_head(struct wait_queue_head *wq_head, const char *name, struct lock_class_key *key) { @@ -207,10 +208,13 @@ EXPORT_SYMBOL_GPL(__wake_up_locked_key_bookmark); void __wake_up_sync_key(struct wait_queue_head *wq_head, unsigned int mode, void *key) { + int wake_flags = WF_SYNC; + if (unlikely(!wq_head)) return; - __wake_up_common_lock(wq_head, mode, 1, WF_SYNC, key); + trace_android_vh_set_wake_flags(&wake_flags, &mode); + __wake_up_common_lock(wq_head, mode, 1, wake_flags, key); } EXPORT_SYMBOL_GPL(__wake_up_sync_key); diff --git a/net/core/sock.c b/net/core/sock.c index c9cffb7acbea..93d44231d4c3 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -138,6 +138,7 @@ #include #include +#include #include #include @@ -3318,9 +3319,19 @@ void sock_def_readable(struct sock *sk) rcu_read_lock(); wq = rcu_dereference(sk->sk_wq); - if (skwq_has_sleeper(wq)) + + if (skwq_has_sleeper(wq)) { + int done = 0; + + trace_android_vh_do_wake_up_sync(&wq->wait, &done, sk); + if (done) + goto out; + wake_up_interruptible_sync_poll(&wq->wait, EPOLLIN | EPOLLPRI | EPOLLRDNORM | EPOLLRDBAND); + } + +out: sk_wake_async(sk, SOCK_WAKE_WAITD, POLL_IN); rcu_read_unlock(); }