linux/mm/kmemleak.c

20  *   kmemleak_object) for the allocated memory blocks. The object trees are
22  *   corresponding memory block. The kmemleak_object structures are added to
26  * - kmemleak_object.lock (raw_spinlock_t): protects a kmemleak_object.
38  *   Note that the kmemleak_object.use_count is incremented when an object is
51  * The kmemleak_object structures have a use_count incremented or decremented
54  * kmemleak_object freeing via an RCU callback. All calls to the get_object()
135 struct kmemleak_object {
196 static struct kmemleak_object mem_pool[CONFIG_DEBUG_KMEMLEAK_MEM_POOL_SIZE];
293 			    struct kmemleak_object *object)
326 static bool color_white(const struct kmemleak_object *object)
332 static bool color_gray(const struct kmemleak_object *object)
343 static bool unreferenced_object(struct kmemleak_object *object)
350 static const char *__object_type_str(struct kmemleak_object *object)
364 			       struct kmemleak_object *object)
386  * Print the kmemleak_object information. This function is used mainly for
390 static void dump_object_info(struct kmemleak_object *object)
415  * Look-up a memory block metadata (kmemleak_object) in the object search
420 static struct kmemleak_object *__lookup_object(unsigned long ptr, int alias,
427 		struct kmemleak_object *object;
430 		object = rb_entry(rb, struct kmemleak_object, rb_node);
450 static struct kmemleak_object *lookup_object(unsigned long ptr, int alias)
461 static int get_object(struct kmemleak_object *object)
469 static struct kmemleak_object *mem_pool_alloc(gfp_t gfp)
472 	struct kmemleak_object *object;
503 static void mem_pool_free(struct kmemleak_object *object)
519  * RCU callback to free a kmemleak_object.
525 	struct kmemleak_object *object =
526 		container_of(rcu, struct kmemleak_object, rcu);
546 static void put_object(struct kmemleak_object *object)
568 static struct kmemleak_object *__find_and_get_object(unsigned long ptr, int alias,
572 	struct kmemleak_object *object;
588 static struct kmemleak_object *find_and_get_object(unsigned long ptr, int alias)
597 static void __remove_object(struct kmemleak_object *object)
605 static struct kmemleak_object *__find_and_remove_object(unsigned long ptr,
609 	struct kmemleak_object *object;
623 static struct kmemleak_object *find_and_remove_object(unsigned long ptr, int alias,
627 	struct kmemleak_object *object;
655 static struct kmemleak_object *__alloc_object(gfp_t gfp)
657 	struct kmemleak_object *object;
661 		pr_warn("Cannot allocate a kmemleak_object structure\n");
700 static int __link_object(struct kmemleak_object *object, unsigned long ptr,
704 	struct kmemleak_object *parent;
732 		parent = rb_entry(rb_parent, struct kmemleak_object, rb_node);
757  * Create the metadata (struct kmemleak_object) corresponding to an allocated
763 	struct kmemleak_object *object;
802 static void __delete_object(struct kmemleak_object *object)
820  * Look up the metadata (struct kmemleak_object) corresponding to ptr and
825 	struct kmemleak_object *object;
839  * Look up the metadata (struct kmemleak_object) corresponding to ptr and
846 	struct kmemleak_object *object, *object_l, *object_r;
895 static void __paint_it(struct kmemleak_object *object, int color)
902 static void paint_it(struct kmemleak_object *object, int color)
913 	struct kmemleak_object *object;
952 	struct kmemleak_object *object;
974 	struct kmemleak_object *object;
1028 	struct kmemleak_object *object;
1051 	struct kmemleak_object *object;
1192 	struct kmemleak_object *object;
1375 static bool update_checksum(struct kmemleak_object *object)
1405 static void update_refs(struct kmemleak_object *object)
1426 static void pointer_update_refs(struct kmemleak_object *scanned,
1429 	struct kmemleak_object *object;
1510 		       struct kmemleak_object *scanned)
1552  * Scan a memory block corresponding to a kmemleak_object. A condition is
1555 static void scan_object(struct kmemleak_object *object)
1622 	struct kmemleak_object *object, *tmp;
1654 static void kmemleak_cond_resched(struct kmemleak_object *object)
1685 	struct kmemleak_object *object;
1692 	/* prepare the kmemleak_object's */
1936 	struct kmemleak_object *object;
1962 	struct kmemleak_object *prev_obj = v;
1963 	struct kmemleak_object *next_obj = NULL;
1964 	struct kmemleak_object *obj = prev_obj;
2001 	struct kmemleak_object *object = v;
2026 	struct kmemleak_object *object;
2069 	struct kmemleak_object *object;
2186 	struct kmemleak_object *object, *tmp;
2289 	object_cache = KMEM_CACHE(kmemleak_object, SLAB_NOLEAKTRACE);