139 static inline struct super_block *pts_sb_from_inode(struct inode *inode)  in pts_sb_from_inode()  argument
142 	if (inode->i_sb->s_magic == DEVPTS_SUPER_MAGIC)  in pts_sb_from_inode()
143 		return inode->i_sb;  in pts_sb_from_inode()
244 	struct inode *inode;  in mknod_ptmx()  local
273 	inode = new_inode(sb);  in mknod_ptmx()
274 	if (!inode) {  in mknod_ptmx()
280 	inode->i_ino = 2;  in mknod_ptmx()
281 	inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;  in mknod_ptmx()
284 	init_special_inode(inode, mode, MKDEV(TTYAUX_MAJOR, 2));  in mknod_ptmx()
285 	inode->i_uid = root_uid;  in mknod_ptmx()
286 	inode->i_gid = root_gid;  in mknod_ptmx()
288 	d_add(dentry, inode);  in mknod_ptmx()
299 	struct inode *inode;  in update_ptmx_mode()  local
301 		inode = d_inode(fsi->ptmx_dentry);  in update_ptmx_mode()
302 		inode->i_mode = S_IFCHR|fsi->mount_opts.ptmxmode;  in update_ptmx_mode()
377 	struct inode *inode;  in devpts_fill_super()  local
389 	inode = new_inode(s);  in devpts_fill_super()
390 	if (!inode)  in devpts_fill_super()
392 	inode->i_ino = 1;  in devpts_fill_super()
393 	inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;  in devpts_fill_super()
394 	inode->i_mode = S_IFDIR | S_IRUGO | S_IXUGO | S_IWUSR;  in devpts_fill_super()
395 	inode->i_op = &simple_dir_inode_operations;  in devpts_fill_super()
396 	inode->i_fop = &simple_dir_operations;  in devpts_fill_super()
397 	set_nlink(inode, 2);  in devpts_fill_super()
399 	s->s_root = d_make_root(inode);  in devpts_fill_super()
525 int devpts_new_index(struct inode *ptmx_inode)  in devpts_new_index()
561 void devpts_kill_index(struct inode *ptmx_inode, int idx)  in devpts_kill_index()
576 void devpts_add_ref(struct inode *ptmx_inode)  in devpts_add_ref()
584 void devpts_del_ref(struct inode *ptmx_inode)  in devpts_del_ref()
601 struct inode *devpts_pty_new(struct inode *ptmx_inode, dev_t device, int index,  in devpts_pty_new()
606 	struct inode *inode;  in devpts_pty_new()  local
612 	inode = new_inode(sb);  in devpts_pty_new()
613 	if (!inode)  in devpts_pty_new()
616 	inode->i_ino = index + 3;  in devpts_pty_new()
617 	inode->i_uid = opts->setuid ? opts->uid : current_fsuid();  in devpts_pty_new()
618 	inode->i_gid = opts->setgid ? opts->gid : current_fsgid();  in devpts_pty_new()
619 	inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;  in devpts_pty_new()
620 	init_special_inode(inode, S_IFCHR|opts->mode, device);  in devpts_pty_new()
621 	inode->i_private = priv;  in devpts_pty_new()
629 		d_add(dentry, inode);  in devpts_pty_new()
632 		iput(inode);  in devpts_pty_new()
633 		inode = ERR_PTR(-ENOMEM);  in devpts_pty_new()
638 	return inode;  in devpts_pty_new()
647 void *devpts_get_priv(struct inode *pts_inode)  in devpts_get_priv()
673 void devpts_pty_kill(struct inode *inode)  in devpts_pty_kill()  argument
675 	struct super_block *sb = pts_sb_from_inode(inode);  in devpts_pty_kill()
679 	BUG_ON(inode->i_rdev == MKDEV(TTYAUX_MAJOR, PTMX_MINOR));  in devpts_pty_kill()
683 	dentry = d_find_alias(inode);  in devpts_pty_kill()
685 	drop_nlink(inode);  in devpts_pty_kill()