core/lib/crypto.c

60 	int avail_deks; /* the number of keys available, with need_sync bit 0 */
71 	unsigned long *need_sync;
301 	bulk->need_sync = bitmap_zalloc(num_deks, GFP_KERNEL);
302 	if (!bulk->need_sync) {
328 	bitmap_free(bulk->need_sync);
352 	bitmap_free(bulk->need_sync);
380 		pos = find_next_zero_bit(bulk->need_sync, bulk->num_deks,
384 			pos = find_first_zero_bit(bulk->need_sync, bulk->num_deks);
402 	bitmap_set(bulk->need_sync, pos, 1);
470  * As the combinations of (need_sync, in_use) of one DEK are
476  * hweight_long(need_sync XOR in_use), and the need_sync bits can be reset
482 	unsigned long *need_sync = bulk->need_sync;
490 			i++, need_sync++, in_use++) {
491 		reused = hweight_long((*need_sync) ^ (*in_use));
497 		*need_sync = *in_use;
575 			memset(bulk->need_sync, 0, BITS_TO_BYTES(bulk->num_deks));