| 1 | /* |
| 2 | * ltt/probes/rcu-trace.c |
| 3 | * |
| 4 | * RCU tracepoint probes. |
| 5 | * |
| 6 | * (C) Copyright 2009 - Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> |
| 7 | * Dual LGPL v2.1/GPL v2 license. |
| 8 | */ |
| 9 | |
| 10 | #include <linux/module.h> |
| 11 | #include <trace/rcu.h> |
| 12 | |
| 13 | #ifdef CONFIG_TREE_RCU |
| 14 | void probe_rcu_tree_callback(void *data, struct rcu_head *head) |
| 15 | { |
| 16 | trace_mark_tp(rcu, tree_callback, rcu_tree_callback, |
| 17 | probe_rcu_tree_callback, "func %p", head->func); |
| 18 | } |
| 19 | |
| 20 | void probe_rcu_tree_call_rcu(void *data, struct rcu_head *head, unsigned long ip) |
| 21 | { |
| 22 | trace_mark_tp(rcu, tree_call_rcu, rcu_tree_call_rcu, |
| 23 | probe_rcu_tree_call_rcu, "func %p ip 0x%lX", head->func, ip); |
| 24 | } |
| 25 | |
| 26 | void probe_rcu_tree_call_rcu_bh(void *data, struct rcu_head *head, unsigned long ip) |
| 27 | { |
| 28 | trace_mark_tp(rcu, tree_call_rcu_bh, rcu_tree_call_rcu_bh, |
| 29 | probe_rcu_tree_call_rcu_bh, "func %p ip 0x%lX", |
| 30 | head->func, ip); |
| 31 | } |
| 32 | #endif |
| 33 | |
| 34 | MODULE_LICENSE("GPL and additional rights"); |
| 35 | MODULE_AUTHOR("Mathieu Desnoyers"); |
| 36 | MODULE_DESCRIPTION("RCU Tracepoint Probes"); |