81 	struct mq_attr attr;  member
167 	info->attr.mq_curmsgs++;  in msg_insert()
203 		if (info->attr.mq_curmsgs) {  in msg_get()
207 			info->attr.mq_curmsgs = 0;  in msg_get()
226 	info->attr.mq_curmsgs--;  in msg_get()
233 		struct mq_attr *attr)  in mqueue_get_inode()  argument
268 		memset(&info->attr, 0, sizeof(info->attr));  in mqueue_get_inode()
269 		info->attr.mq_maxmsg = min(ipc_ns->mq_msg_max,  in mqueue_get_inode()
271 		info->attr.mq_msgsize = min(ipc_ns->mq_msgsize_max,  in mqueue_get_inode()
273 		if (attr) {  in mqueue_get_inode()
274 			info->attr.mq_maxmsg = attr->mq_maxmsg;  in mqueue_get_inode()
275 			info->attr.mq_msgsize = attr->mq_msgsize;  in mqueue_get_inode()
292 		if (info->attr.mq_maxmsg <= 0 || info->attr.mq_msgsize <= 0)  in mqueue_get_inode()
295 			if (info->attr.mq_maxmsg > HARD_MSGMAX ||  in mqueue_get_inode()
296 			    info->attr.mq_msgsize > HARD_MSGSIZEMAX)  in mqueue_get_inode()
299 			if (info->attr.mq_maxmsg > ipc_ns->mq_msg_max ||  in mqueue_get_inode()
300 					info->attr.mq_msgsize > ipc_ns->mq_msgsize_max)  in mqueue_get_inode()
305 		if (info->attr.mq_msgsize > ULONG_MAX/info->attr.mq_maxmsg)  in mqueue_get_inode()
307 		mq_treesize = info->attr.mq_maxmsg * sizeof(struct msg_msg) +  in mqueue_get_inode()
308 			min_t(unsigned int, info->attr.mq_maxmsg, MQ_PRIO_MAX) *  in mqueue_get_inode()
310 		mq_bytes = info->attr.mq_maxmsg * info->attr.mq_msgsize;  in mqueue_get_inode()
468 		mq_treesize = info->attr.mq_maxmsg * sizeof(struct msg_msg) +  in mqueue_evict_inode()
469 			min_t(unsigned int, info->attr.mq_maxmsg, MQ_PRIO_MAX) *  in mqueue_evict_inode()
472 		mq_bytes = mq_treesize + (info->attr.mq_maxmsg *  in mqueue_evict_inode()
473 					  info->attr.mq_msgsize);  in mqueue_evict_inode()
496 	struct mq_attr *attr = arg;  in mqueue_create_attr()  local
515 	inode = mqueue_get_inode(dir->i_sb, ipc_ns, mode, attr);  in mqueue_create_attr()
609 	if (info->attr.mq_curmsgs)  in mqueue_poll_file()
612 	if (info->attr.mq_curmsgs < info->attr.mq_maxmsg)  in mqueue_poll_file()
711 	    info->attr.mq_curmsgs == 1) {  in __do_notify()
773 			struct mq_attr *attr)  in prepare_open()  argument
786 				  mqueue_create_attr, attr);  in prepare_open()
799 		      struct mq_attr *attr)  in do_mq_open()  argument
808 	audit_mq_open(oflag, mode, attr);  in do_mq_open()
825 	error = prepare_open(path.mnt, path.dentry, oflag, ro, mode, name, attr);  in do_mq_open()
850 	struct mq_attr attr;  in SYSCALL_DEFINE4()  local
851 	if (u_attr && copy_from_user(&attr, u_attr, sizeof(struct mq_attr)))  in SYSCALL_DEFINE4()
854 	return do_mq_open(u_name, oflag, mode, u_attr ? &attr : NULL);  in SYSCALL_DEFINE4()
1007 	if (unlikely(msg_len > info->attr.mq_msgsize)) {  in do_mq_timedsend()
1041 	if (info->attr.mq_curmsgs == info->attr.mq_maxmsg) {  in do_mq_timedsend()
1121 	if (unlikely(msg_len < info->attr.mq_msgsize)) {  in do_mq_timedreceive()
1144 	if (info->attr.mq_curmsgs == 0) {  in do_mq_timedreceive()
1374 		*old = info->attr;  in do_mq_getsetattr()
1429 static inline int get_compat_mq_attr(struct mq_attr *attr,  in get_compat_mq_attr()  argument
1437 	memset(attr, 0, sizeof(*attr));  in get_compat_mq_attr()
1438 	attr->mq_flags = v.mq_flags;  in get_compat_mq_attr()
1439 	attr->mq_maxmsg = v.mq_maxmsg;  in get_compat_mq_attr()
1440 	attr->mq_msgsize = v.mq_msgsize;  in get_compat_mq_attr()
1441 	attr->mq_curmsgs = v.mq_curmsgs;  in get_compat_mq_attr()
1445 static inline int put_compat_mq_attr(const struct mq_attr *attr,  in put_compat_mq_attr()  argument
1451 	v.mq_flags = attr->mq_flags;  in put_compat_mq_attr()
1452 	v.mq_maxmsg = attr->mq_maxmsg;  in put_compat_mq_attr()
1453 	v.mq_msgsize = attr->mq_msgsize;  in put_compat_mq_attr()
1454 	v.mq_curmsgs = attr->mq_curmsgs;  in put_compat_mq_attr()
1464 	struct mq_attr attr, *p = NULL;  in COMPAT_SYSCALL_DEFINE4()  local
1466 		p = &attr;  in COMPAT_SYSCALL_DEFINE4()
1467 		if (get_compat_mq_attr(&attr, u_attr))  in COMPAT_SYSCALL_DEFINE4()