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markers: use module notifier 

Impact: cleanup

Use module notifiers instead of adding a hook in module.c.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Mathieu Desnoyers 2008-11-14 17:47:38 -05:00 committed by Ingo Molnar
parent 021aeb057f
commit a419246ac7
2 changed files with 29 additions and 4 deletions
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29
kernel/marker.c
View File

@ -846,3 +846,32 @@ void *marker_get_private_data(const char *name, marker_probe_func *probe,
return ERR_PTR(-ENOENT);
}
EXPORT_SYMBOL_GPL(marker_get_private_data);
int marker_module_notify(struct notifier_block *self,
unsigned long val, void *data)
{
struct module *mod = data;
switch (val) {
case MODULE_STATE_COMING:
marker_update_probe_range(mod->markers,
mod->markers + mod->num_markers);
break;
case MODULE_STATE_GOING:
marker_update_probe_range(mod->markers,
mod->markers + mod->num_markers);
break;
}
return 0;
}
struct notifier_block marker_module_nb = {
.notifier_call = marker_module_notify,
.priority = 0,
};
static int init_markers(void)
{
return register_module_notifier(&marker_module_nb);
}
__initcall(init_markers);

4
kernel/module.c
View File

@ -2184,10 +2184,6 @@ static noinline struct module *load_module(void __user *umod,
struct mod_debug *debug;
unsigned int num_debug;
#ifdef CONFIG_MARKERS
marker_update_probe_range(mod->markers,
mod->markers + mod->num_markers);
#endif
debug = section_objs(hdr, sechdrs, secstrings, "__verbose",
sizeof(*debug), &num_debug);
dynamic_printk_setup(debug, num_debug);