msqid_ds          159 arch/x86/kernel/sys_i386_32.c 		return sys_msgctl(first, second, (struct msqid_ds __user *) ptr);
msqid_ds           28 include/linux/syscalls.h struct msqid_ds;
msqid_ds          338 ipc/msg.c      		struct msqid_ds out;
msqid_ds          385 ipc/msg.c      		struct msqid_ds tbuf_old;