diff options
Diffstat (limited to 'kernel/tracepoint.c')
| -rw-r--r-- | kernel/tracepoint.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/kernel/tracepoint.c b/kernel/tracepoint.c index 8d1507dd0724..8879da16ef4d 100644 --- a/kernel/tracepoint.c +++ b/kernel/tracepoint.c @@ -735,6 +735,48 @@ static __init int init_tracepoints(void) return ret; } __initcall(init_tracepoints); + +/** + * for_each_tracepoint_in_module - iteration on all tracepoints in a module + * @mod: module + * @fct: callback + * @priv: private data + */ +void for_each_tracepoint_in_module(struct module *mod, + void (*fct)(struct tracepoint *tp, + struct module *mod, void *priv), + void *priv) +{ + tracepoint_ptr_t *begin, *end, *iter; + + lockdep_assert_held(&tracepoint_module_list_mutex); + + if (!mod) + return; + + begin = mod->tracepoints_ptrs; + end = mod->tracepoints_ptrs + mod->num_tracepoints; + + for (iter = begin; iter < end; iter++) + fct(tracepoint_ptr_deref(iter), mod, priv); +} + +/** + * for_each_module_tracepoint - iteration on all tracepoints in all modules + * @fct: callback + * @priv: private data + */ +void for_each_module_tracepoint(void (*fct)(struct tracepoint *tp, + struct module *mod, void *priv), + void *priv) +{ + struct tp_module *tp_mod; + + mutex_lock(&tracepoint_module_list_mutex); + list_for_each_entry(tp_mod, &tracepoint_module_list, list) + for_each_tracepoint_in_module(tp_mod->mod, fct, priv); + mutex_unlock(&tracepoint_module_list_mutex); +} #endif /* CONFIG_MODULES */ /** |