364 	if (fc->log)  in vfs_dup_fs_context()
365 		refcount_inc(&fc->log->usage);  in vfs_dup_fs_context()
391 	struct fc_log *log = fc ? fc->log : NULL;  in logfc()  local
418 	if (log && within_module_core((unsigned long)p, log->owner))  in logfc()
429 	if (!log) {  in logfc()
444 		unsigned int logsize = ARRAY_SIZE(log->buffer);  in logfc()
447 		index = log->head & (logsize - 1);  in logfc()
448 		BUILD_BUG_ON(sizeof(log->head) != sizeof(u8) ||  in logfc()
449 			     sizeof(log->tail) != sizeof(u8));  in logfc()
450 		if ((u8)(log->head - log->tail) == logsize) {  in logfc()
452 			if (log->need_free & (1 << index))  in logfc()
453 				kfree(log->buffer[index]);  in logfc()
454 			log->tail++;  in logfc()
457 		log->buffer[index] = q;  in logfc()
458 		log->need_free &= ~(1 << index);  in logfc()
459 		log->need_free |= freeable << index;  in logfc()
460 		log->head++;  in logfc()
471 	struct fc_log *log = fc->log;  in put_fc_log()  local
474 	if (log) {  in put_fc_log()
475 		if (refcount_dec_and_test(&log->usage)) {  in put_fc_log()
476 			fc->log = NULL;  in put_fc_log()
478 				if (log->need_free & (1 << i))  in put_fc_log()
479 					kfree(log->buffer[i]);  in put_fc_log()
480 			kfree(log);  in put_fc_log()