diff options
Diffstat (limited to 'kernel/module.c')
-rw-r--r-- | kernel/module.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/kernel/module.c b/kernel/module.c index fd1411403558..b1821438694e 100644 --- a/kernel/module.c +++ b/kernel/module.c | |||
@@ -55,6 +55,11 @@ | |||
55 | #include <linux/percpu.h> | 55 | #include <linux/percpu.h> |
56 | #include <linux/kmemleak.h> | 56 | #include <linux/kmemleak.h> |
57 | 57 | ||
58 | #define CREATE_TRACE_POINTS | ||
59 | #include <trace/events/module.h> | ||
60 | |||
61 | EXPORT_TRACEPOINT_SYMBOL(module_get); | ||
62 | |||
58 | #if 0 | 63 | #if 0 |
59 | #define DEBUGP printk | 64 | #define DEBUGP printk |
60 | #else | 65 | #else |
@@ -940,6 +945,8 @@ void module_put(struct module *module) | |||
940 | if (module) { | 945 | if (module) { |
941 | unsigned int cpu = get_cpu(); | 946 | unsigned int cpu = get_cpu(); |
942 | local_dec(__module_ref_addr(module, cpu)); | 947 | local_dec(__module_ref_addr(module, cpu)); |
948 | trace_module_put(module, _RET_IP_, | ||
949 | local_read(__module_ref_addr(module, cpu))); | ||
943 | /* Maybe they're waiting for us to drop reference? */ | 950 | /* Maybe they're waiting for us to drop reference? */ |
944 | if (unlikely(!module_is_live(module))) | 951 | if (unlikely(!module_is_live(module))) |
945 | wake_up_process(module->waiter); | 952 | wake_up_process(module->waiter); |
@@ -1491,6 +1498,8 @@ static int __unlink_module(void *_mod) | |||
1491 | /* Free a module, remove from lists, etc (must hold module_mutex). */ | 1498 | /* Free a module, remove from lists, etc (must hold module_mutex). */ |
1492 | static void free_module(struct module *mod) | 1499 | static void free_module(struct module *mod) |
1493 | { | 1500 | { |
1501 | trace_module_free(mod); | ||
1502 | |||
1494 | /* Delete from various lists */ | 1503 | /* Delete from various lists */ |
1495 | stop_machine(__unlink_module, mod, NULL); | 1504 | stop_machine(__unlink_module, mod, NULL); |
1496 | remove_notes_attrs(mod); | 1505 | remove_notes_attrs(mod); |
@@ -2358,6 +2367,8 @@ static noinline struct module *load_module(void __user *umod, | |||
2358 | /* Get rid of temporary copy */ | 2367 | /* Get rid of temporary copy */ |
2359 | vfree(hdr); | 2368 | vfree(hdr); |
2360 | 2369 | ||
2370 | trace_module_load(mod); | ||
2371 | |||
2361 | /* Done! */ | 2372 | /* Done! */ |
2362 | return mod; | 2373 | return mod; |
2363 | 2374 | ||