tag	line	file	source code
msg_lspid	31	include/linux/msg.h	ushort msg_lspid;       /* pid of last msgsnd */
msg_lspid	104	ipc/msg.c	msq->msg_lspid = current->pid;
msg_lspid	257	ipc/msg.c	msq->msg_lspid = msq->msg_lrpid = 0;