used_ids          102 include/uapi/linux/shm.h 	int used_ids;
used_ids          967 ipc/shm.c      		shm_info->used_ids = shm_ids(ns).in_use;
used_ids         1242 ipc/shm.c      	compat_int_t used_ids;
used_ids         1279 ipc/shm.c      	info.used_ids = ip->used_ids;