113 static void init_stack_table(unsigned long entries)  in init_stack_table()  argument
117 	for (i = 0; i < entries; i++)  in init_stack_table()
124 	unsigned long entries = 0;  in stack_depot_early_init()  local
156 	 * If stack_bucket_number_order is not set, leave entries as 0 to rely  in stack_depot_early_init()
160 		entries = 1UL << stack_bucket_number_order;  in stack_depot_early_init()
164 						entries,  in stack_depot_early_init()
176 	if (!entries) {  in stack_depot_early_init()
178 		 * Obtain the number of entries that was calculated by  in stack_depot_early_init()
181 		entries = stack_hash_mask + 1;  in stack_depot_early_init()
183 	init_stack_table(entries);  in stack_depot_early_init()
192 	unsigned long entries;  in stack_depot_init()  local
205 		entries = 1UL << stack_bucket_number_order;  in stack_depot_init()
209 		entries = nr_free_buffer_pages();  in stack_depot_init()
210 		entries = roundup_pow_of_two(entries);  in stack_depot_init()
213 			entries >>= (scale - PAGE_SHIFT);  in stack_depot_init()
215 			entries <<= (PAGE_SHIFT - scale);  in stack_depot_init()
218 	if (entries < 1UL << STACK_BUCKET_NUMBER_ORDER_MIN)  in stack_depot_init()
219 		entries = 1UL << STACK_BUCKET_NUMBER_ORDER_MIN;  in stack_depot_init()
220 	if (entries > 1UL << STACK_BUCKET_NUMBER_ORDER_MAX)  in stack_depot_init()
221 		entries = 1UL << STACK_BUCKET_NUMBER_ORDER_MAX;  in stack_depot_init()
223 	pr_info("allocating hash table of %lu entries via kvcalloc\n", entries);  in stack_depot_init()
224 	stack_table = kvcalloc(entries, sizeof(struct list_head), GFP_KERNEL);  in stack_depot_init()
231 	stack_hash_mask = entries - 1;  in stack_depot_init()
232 	init_stack_table(entries);  in stack_depot_init()
371 	const size_t used = flex_array_size(s, entries, nr_entries);  in depot_stack_record_size()
372 	const size_t unused = sizeof(s->entries) - used;  in depot_stack_record_size()
374 	WARN_ON_ONCE(sizeof(s->entries) < used);  in depot_stack_record_size()
381 depot_alloc_stack(unsigned long *entries, unsigned int nr_entries, u32 hash, depot_flags_t flags, v…  in depot_alloc_stack()  argument
398 		 * Evictable entries have to allocate the max. size so they may  in depot_alloc_stack()
417 	memcpy(stack->entries, entries, flex_array_size(stack, entries, nr_entries));  in depot_alloc_stack()
497 	 * Add the entry to the freelist tail, so that older entries are  in depot_free_stack()
512 static inline u32 hash_stack(unsigned long *entries, unsigned int size)  in hash_stack()  argument
514 	return jhash2((u32 *)entries,  in hash_stack()
515 		      array_size(size,  sizeof(*entries)) / sizeof(u32),  in hash_stack()
536 					      unsigned long *entries, int size,  in find_stack()  argument
547 	 * unused entries, because the stack record free-then-reuse code paths  in find_stack()
558 		 * management state unioned with @entries. The refcount is zero  in find_stack()
561 		if (data_race(stackdepot_memcmp(entries, stack->entries, size)))  in find_stack()
584 depot_stack_handle_t stack_depot_save_flags(unsigned long *entries,  in stack_depot_save_flags()  argument
609 	nr_entries = filter_irq_stacks(entries, nr_entries);  in stack_depot_save_flags()
614 	hash = hash_stack(entries, nr_entries);  in stack_depot_save_flags()
618 	found = find_stack(bucket, entries, nr_entries, hash, depot_flags);  in stack_depot_save_flags()
637 	found = find_stack(bucket, entries, nr_entries, hash, depot_flags);  in stack_depot_save_flags()
640 			depot_alloc_stack(entries, nr_entries, hash, depot_flags, &prealloc);  in stack_depot_save_flags()
674 depot_stack_handle_t stack_depot_save(unsigned long *entries,  in stack_depot_save()  argument
678 	return stack_depot_save_flags(entries, nr_entries, alloc_flags,  in stack_depot_save()
692 			       unsigned long **entries)  in stack_depot_fetch()  argument
696 	*entries = NULL;  in stack_depot_fetch()
698 	 * Let KMSAN know *entries is initialized. This shall prevent false  in stack_depot_fetch()
701 	kmsan_unpoison_memory(entries, sizeof(*entries));  in stack_depot_fetch()
714 	*entries = stack->entries;  in stack_depot_fetch()
741 	unsigned long *entries;  in stack_depot_print()  local
744 	nr_entries = stack_depot_fetch(stack, &entries);  in stack_depot_print()
746 		stack_trace_print(entries, nr_entries, 0);  in stack_depot_print()
753 	unsigned long *entries;  in stack_depot_snprint()  local
756 	nr_entries = stack_depot_fetch(handle, &entries);  in stack_depot_snprint()
757 	return nr_entries ? stack_trace_snprint(buf, size, entries, nr_entries,  in stack_depot_snprint()