105 static void kfence_print_stack(struct seq_file *seq, const struct kfence_metadata *meta,  in kfence_print_stack()  argument
108 	const struct kfence_track *track = show_alloc ? &meta->alloc_track : &meta->free_track;  in kfence_print_stack()
129 void kfence_print_object(struct seq_file *seq, const struct kfence_metadata *meta)  in kfence_print_object()  argument
131 	const int size = abs(meta->size);  in kfence_print_object()
132 	const unsigned long start = meta->addr;  in kfence_print_object()
133 	const struct kmem_cache *const cache = meta->cache;  in kfence_print_object()
135 	lockdep_assert_held(&meta->lock);  in kfence_print_object()
137 	if (meta->state == KFENCE_OBJECT_UNUSED) {  in kfence_print_object()
138 		seq_con_printf(seq, "kfence-#%td unused\n", meta - kfence_metadata);  in kfence_print_object()
143 		       meta - kfence_metadata, (void *)start, (void *)(start + size - 1),  in kfence_print_object()
146 	kfence_print_stack(seq, meta, true);  in kfence_print_object()
148 	if (meta->state == KFENCE_OBJECT_FREED) {  in kfence_print_object()
150 		kfence_print_stack(seq, meta, false);  in kfence_print_object()
159 			      const struct kfence_metadata *meta)  in print_diff_canary()  argument
165 	end = (const u8 *)(address < meta->addr ? min(show_until_addr, meta->addr)  in print_diff_canary()
186 			 const struct kfence_metadata *meta, enum kfence_error_type type)  in kfence_report_error()  argument
189 	const ptrdiff_t object_index = meta ? meta - kfence_metadata : -1;  in kfence_report_error()
201 	if (WARN_ON(type != KFENCE_ERROR_INVALID && !meta))  in kfence_report_error()
204 	if (meta)  in kfence_report_error()
205 		lockdep_assert_held(&meta->lock);  in kfence_report_error()
221 		const bool left_of_object = address < meta->addr;  in kfence_report_error()
227 		       left_of_object ? meta->addr - address : address - meta->addr,  in kfence_report_error()
240 		print_diff_canary(address, 16, meta);  in kfence_report_error()
259 	if (meta) {  in kfence_report_error()
261 		kfence_print_object(NULL, meta);  in kfence_report_error()
295 	struct kfence_metadata *meta = addr_to_metadata((unsigned long)object);  in __kfence_obj_info()  local
298 	if (!meta)  in __kfence_obj_info()
308 	if (WARN_ON(meta->state == KFENCE_OBJECT_UNUSED))  in __kfence_obj_info()
311 	raw_spin_lock_irqsave(&meta->lock, flags);  in __kfence_obj_info()
314 	kpp->kp_slab_cache = meta->cache;  in __kfence_obj_info()
315 	kpp->kp_objp = (void *)meta->addr;  in __kfence_obj_info()
316 	kfence_to_kp_stack(&meta->alloc_track, kpp->kp_stack);  in __kfence_obj_info()
317 	if (meta->state == KFENCE_OBJECT_FREED)  in __kfence_obj_info()
318 		kfence_to_kp_stack(&meta->free_track, kpp->kp_free_stack);  in __kfence_obj_info()
322 	raw_spin_unlock_irqrestore(&meta->lock, flags);  in __kfence_obj_info()