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-rw-r--r--lib/debugobjects.c54
1 files changed, 50 insertions, 4 deletions
diff --git a/lib/debugobjects.c b/lib/debugobjects.c
index a78b7c6e042c..77cb245f8e7b 100644
--- a/lib/debugobjects.c
+++ b/lib/debugobjects.c
@@ -268,12 +268,16 @@ static void debug_print_object(struct debug_obj *obj, char *msg)
268 * Try to repair the damage, so we have a better chance to get useful 268 * Try to repair the damage, so we have a better chance to get useful
269 * debug output. 269 * debug output.
270 */ 270 */
271static void 271static int
272debug_object_fixup(int (*fixup)(void *addr, enum debug_obj_state state), 272debug_object_fixup(int (*fixup)(void *addr, enum debug_obj_state state),
273 void * addr, enum debug_obj_state state) 273 void * addr, enum debug_obj_state state)
274{ 274{
275 int fixed = 0;
276
275 if (fixup) 277 if (fixup)
276 debug_objects_fixups += fixup(addr, state); 278 fixed = fixup(addr, state);
279 debug_objects_fixups += fixed;
280 return fixed;
277} 281}
278 282
279static void debug_object_is_on_stack(void *addr, int onstack) 283static void debug_object_is_on_stack(void *addr, int onstack)
@@ -386,6 +390,9 @@ void debug_object_activate(void *addr, struct debug_obj_descr *descr)
386 struct debug_bucket *db; 390 struct debug_bucket *db;
387 struct debug_obj *obj; 391 struct debug_obj *obj;
388 unsigned long flags; 392 unsigned long flags;
393 struct debug_obj o = { .object = addr,
394 .state = ODEBUG_STATE_NOTAVAILABLE,
395 .descr = descr };
389 396
390 if (!debug_objects_enabled) 397 if (!debug_objects_enabled)
391 return; 398 return;
@@ -425,8 +432,9 @@ void debug_object_activate(void *addr, struct debug_obj_descr *descr)
425 * let the type specific code decide whether this is 432 * let the type specific code decide whether this is
426 * true or not. 433 * true or not.
427 */ 434 */
428 debug_object_fixup(descr->fixup_activate, addr, 435 if (debug_object_fixup(descr->fixup_activate, addr,
429 ODEBUG_STATE_NOTAVAILABLE); 436 ODEBUG_STATE_NOTAVAILABLE))
437 debug_print_object(&o, "activate");
430} 438}
431 439
432/** 440/**
@@ -563,6 +571,44 @@ out_unlock:
563} 571}
564 572
565/** 573/**
574 * debug_object_assert_init - debug checks when object should be init-ed
575 * @addr: address of the object
576 * @descr: pointer to an object specific debug description structure
577 */
578void debug_object_assert_init(void *addr, struct debug_obj_descr *descr)
579{
580 struct debug_bucket *db;
581 struct debug_obj *obj;
582 unsigned long flags;
583
584 if (!debug_objects_enabled)
585 return;
586
587 db = get_bucket((unsigned long) addr);
588
589 raw_spin_lock_irqsave(&db->lock, flags);
590
591 obj = lookup_object(addr, db);
592 if (!obj) {
593 struct debug_obj o = { .object = addr,
594 .state = ODEBUG_STATE_NOTAVAILABLE,
595 .descr = descr };
596
597 raw_spin_unlock_irqrestore(&db->lock, flags);
598 /*
599 * Maybe the object is static. Let the type specific
600 * code decide what to do.
601 */
602 if (debug_object_fixup(descr->fixup_assert_init, addr,
603 ODEBUG_STATE_NOTAVAILABLE))
604 debug_print_object(&o, "assert_init");
605 return;
606 }
607
608 raw_spin_unlock_irqrestore(&db->lock, flags);
609}
610
611/**
566 * debug_object_active_state - debug checks object usage state machine 612 * debug_object_active_state - debug checks object usage state machine
567 * @addr: address of the object 613 * @addr: address of the object
568 * @descr: pointer to an object specific debug description structure 614 * @descr: pointer to an object specific debug description structure