59 static int inherit_flags(const struct inode *dir, umode_t mode)  in inherit_flags()
88 struct inode *ubifs_new_inode(struct ubifs_info *c, const struct inode *dir,  in ubifs_new_inode()
91 	struct inode *inode;  in ubifs_new_inode()  local
94 	inode = new_inode(c->vfs_sb);  in ubifs_new_inode()
95 	ui = ubifs_inode(inode);  in ubifs_new_inode()
96 	if (!inode)  in ubifs_new_inode()
105 	inode->i_flags |= S_NOCMTIME;  in ubifs_new_inode()
107 	inode_init_owner(inode, dir, mode);  in ubifs_new_inode()
108 	inode->i_mtime = inode->i_atime = inode->i_ctime =  in ubifs_new_inode()
109 			 ubifs_current_time(inode);  in ubifs_new_inode()
110 	inode->i_mapping->nrpages = 0;  in ubifs_new_inode()
114 		inode->i_mapping->a_ops = &ubifs_file_address_operations;  in ubifs_new_inode()
115 		inode->i_op = &ubifs_file_inode_operations;  in ubifs_new_inode()
116 		inode->i_fop = &ubifs_file_operations;  in ubifs_new_inode()
119 		inode->i_op  = &ubifs_dir_inode_operations;  in ubifs_new_inode()
120 		inode->i_fop = &ubifs_dir_operations;  in ubifs_new_inode()
121 		inode->i_size = ui->ui_size = UBIFS_INO_NODE_SZ;  in ubifs_new_inode()
124 		inode->i_op = &ubifs_symlink_inode_operations;  in ubifs_new_inode()
130 		inode->i_op  = &ubifs_file_inode_operations;  in ubifs_new_inode()
137 	ubifs_set_inode_flags(inode);  in ubifs_new_inode()
150 			make_bad_inode(inode);  in ubifs_new_inode()
151 			iput(inode);  in ubifs_new_inode()
158 	inode->i_ino = ++c->highest_inum;  in ubifs_new_inode()
168 	return inode;  in ubifs_new_inode()
184 static struct dentry *ubifs_lookup(struct inode *dir, struct dentry *dentry,  in ubifs_lookup()
189 	struct inode *inode = NULL;  in ubifs_lookup()  local
218 	inode = ubifs_iget(dir->i_sb, le64_to_cpu(dent->inum));  in ubifs_lookup()
219 	if (IS_ERR(inode)) {  in ubifs_lookup()
224 		err = PTR_ERR(inode);  in ubifs_lookup()
237 	d_add(dentry, inode);  in ubifs_lookup()
245 static int ubifs_create(struct inode *dir, struct dentry *dentry, umode_t mode,  in ubifs_create()
248 	struct inode *inode;  in ubifs_create()  local
267 	inode = ubifs_new_inode(c, dir, mode);  in ubifs_create()
268 	if (IS_ERR(inode)) {  in ubifs_create()
269 		err = PTR_ERR(inode);  in ubifs_create()
273 	err = ubifs_init_security(dir, inode, &dentry->d_name);  in ubifs_create()
280 	dir->i_mtime = dir->i_ctime = inode->i_ctime;  in ubifs_create()
281 	err = ubifs_jnl_update(c, dir, &dentry->d_name, inode, 0, 0);  in ubifs_create()
287 	insert_inode_hash(inode);  in ubifs_create()
288 	d_instantiate(dentry, inode);  in ubifs_create()
296 	make_bad_inode(inode);  in ubifs_create()
297 	iput(inode);  in ubifs_create()
357 	struct inode *dir = file_inode(file);  in ubifs_readdir()
466 static int ubifs_dir_release(struct inode *dir, struct file *file)  in ubifs_dir_release()
482 static void lock_2_inodes(struct inode *inode1, struct inode *inode2)  in lock_2_inodes()
493 static void unlock_2_inodes(struct inode *inode1, struct inode *inode2)  in unlock_2_inodes()
499 static int ubifs_link(struct dentry *old_dentry, struct inode *dir,  in ubifs_link()
503 	struct inode *inode = d_inode(old_dentry);  in ubifs_link()  local
504 	struct ubifs_inode *ui = ubifs_inode(inode);  in ubifs_link()
516 		dentry, inode->i_ino,  in ubifs_link()
517 		inode->i_nlink, dir->i_ino);  in ubifs_link()
519 	ubifs_assert(mutex_is_locked(&inode->i_mutex));  in ubifs_link()
521 	err = dbg_check_synced_i_size(c, inode);  in ubifs_link()
529 	lock_2_inodes(dir, inode);  in ubifs_link()
530 	inc_nlink(inode);  in ubifs_link()
531 	ihold(inode);  in ubifs_link()
532 	inode->i_ctime = ubifs_current_time(inode);  in ubifs_link()
535 	dir->i_mtime = dir->i_ctime = inode->i_ctime;  in ubifs_link()
536 	err = ubifs_jnl_update(c, dir, &dentry->d_name, inode, 0, 0);  in ubifs_link()
539 	unlock_2_inodes(dir, inode);  in ubifs_link()
542 	d_instantiate(dentry, inode);  in ubifs_link()
548 	drop_nlink(inode);  in ubifs_link()
549 	unlock_2_inodes(dir, inode);  in ubifs_link()
551 	iput(inode);  in ubifs_link()
555 static int ubifs_unlink(struct inode *dir, struct dentry *dentry)  in ubifs_unlink()
558 	struct inode *inode = d_inode(dentry);  in ubifs_unlink()  local
563 	unsigned int saved_nlink = inode->i_nlink;  in ubifs_unlink()
573 		dentry, inode->i_ino,  in ubifs_unlink()
574 		inode->i_nlink, dir->i_ino);  in ubifs_unlink()
576 	ubifs_assert(mutex_is_locked(&inode->i_mutex));  in ubifs_unlink()
577 	err = dbg_check_synced_i_size(c, inode);  in ubifs_unlink()
588 	lock_2_inodes(dir, inode);  in ubifs_unlink()
589 	inode->i_ctime = ubifs_current_time(dir);  in ubifs_unlink()
590 	drop_nlink(inode);  in ubifs_unlink()
593 	dir->i_mtime = dir->i_ctime = inode->i_ctime;  in ubifs_unlink()
594 	err = ubifs_jnl_update(c, dir, &dentry->d_name, inode, 1, 0);  in ubifs_unlink()
597 	unlock_2_inodes(dir, inode);  in ubifs_unlink()
611 	set_nlink(inode, saved_nlink);  in ubifs_unlink()
612 	unlock_2_inodes(dir, inode);  in ubifs_unlink()
627 static int check_dir_empty(struct ubifs_info *c, struct inode *dir)  in check_dir_empty()
647 static int ubifs_rmdir(struct inode *dir, struct dentry *dentry)  in ubifs_rmdir()
650 	struct inode *inode = d_inode(dentry);  in ubifs_rmdir()  local
663 		inode->i_ino, dir->i_ino);  in ubifs_rmdir()
665 	ubifs_assert(mutex_is_locked(&inode->i_mutex));  in ubifs_rmdir()
677 	lock_2_inodes(dir, inode);  in ubifs_rmdir()
678 	inode->i_ctime = ubifs_current_time(dir);  in ubifs_rmdir()
679 	clear_nlink(inode);  in ubifs_rmdir()
683 	dir->i_mtime = dir->i_ctime = inode->i_ctime;  in ubifs_rmdir()
684 	err = ubifs_jnl_update(c, dir, &dentry->d_name, inode, 1, 0);  in ubifs_rmdir()
687 	unlock_2_inodes(dir, inode);  in ubifs_rmdir()
702 	set_nlink(inode, 2);  in ubifs_rmdir()
703 	unlock_2_inodes(dir, inode);  in ubifs_rmdir()
709 static int ubifs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)  in ubifs_mkdir()
711 	struct inode *inode;  in ubifs_mkdir()  local
729 	inode = ubifs_new_inode(c, dir, S_IFDIR | mode);  in ubifs_mkdir()
730 	if (IS_ERR(inode)) {  in ubifs_mkdir()
731 		err = PTR_ERR(inode);  in ubifs_mkdir()
735 	err = ubifs_init_security(dir, inode, &dentry->d_name);  in ubifs_mkdir()
740 	insert_inode_hash(inode);  in ubifs_mkdir()
741 	inc_nlink(inode);  in ubifs_mkdir()
745 	dir->i_mtime = dir->i_ctime = inode->i_ctime;  in ubifs_mkdir()
746 	err = ubifs_jnl_update(c, dir, &dentry->d_name, inode, 0, 0);  in ubifs_mkdir()
754 	d_instantiate(dentry, inode);  in ubifs_mkdir()
763 	make_bad_inode(inode);  in ubifs_mkdir()
764 	iput(inode);  in ubifs_mkdir()
770 static int ubifs_mknod(struct inode *dir, struct dentry *dentry,  in ubifs_mknod()
773 	struct inode *inode;  in ubifs_mknod()  local
804 	inode = ubifs_new_inode(c, dir, mode);  in ubifs_mknod()
805 	if (IS_ERR(inode)) {  in ubifs_mknod()
807 		err = PTR_ERR(inode);  in ubifs_mknod()
811 	init_special_inode(inode, inode->i_mode, rdev);  in ubifs_mknod()
812 	inode->i_size = ubifs_inode(inode)->ui_size = devlen;  in ubifs_mknod()
813 	ui = ubifs_inode(inode);  in ubifs_mknod()
817 	err = ubifs_init_security(dir, inode, &dentry->d_name);  in ubifs_mknod()
824 	dir->i_mtime = dir->i_ctime = inode->i_ctime;  in ubifs_mknod()
825 	err = ubifs_jnl_update(c, dir, &dentry->d_name, inode, 0, 0);  in ubifs_mknod()
831 	insert_inode_hash(inode);  in ubifs_mknod()
832 	d_instantiate(dentry, inode);  in ubifs_mknod()
840 	make_bad_inode(inode);  in ubifs_mknod()
841 	iput(inode);  in ubifs_mknod()
847 static int ubifs_symlink(struct inode *dir, struct dentry *dentry,  in ubifs_symlink()
850 	struct inode *inode;  in ubifs_symlink()  local
875 	inode = ubifs_new_inode(c, dir, S_IFLNK | S_IRWXUGO);  in ubifs_symlink()
876 	if (IS_ERR(inode)) {  in ubifs_symlink()
877 		err = PTR_ERR(inode);  in ubifs_symlink()
881 	ui = ubifs_inode(inode);  in ubifs_symlink()
890 	inode->i_link = ui->data;  in ubifs_symlink()
897 	inode->i_size = ubifs_inode(inode)->ui_size = len;  in ubifs_symlink()
899 	err = ubifs_init_security(dir, inode, &dentry->d_name);  in ubifs_symlink()
906 	dir->i_mtime = dir->i_ctime = inode->i_ctime;  in ubifs_symlink()
907 	err = ubifs_jnl_update(c, dir, &dentry->d_name, inode, 0, 0);  in ubifs_symlink()
913 	insert_inode_hash(inode);  in ubifs_symlink()
914 	d_instantiate(dentry, inode);  in ubifs_symlink()
922 	make_bad_inode(inode);  in ubifs_symlink()
923 	iput(inode);  in ubifs_symlink()
942 static void lock_3_inodes(struct inode *inode1, struct inode *inode2,  in lock_3_inodes()
943 			  struct inode *inode3)  in lock_3_inodes()
958 static void unlock_3_inodes(struct inode *inode1, struct inode *inode2,  in unlock_3_inodes()
959 			    struct inode *inode3)  in unlock_3_inodes()
968 static int ubifs_rename(struct inode *old_dir, struct dentry *old_dentry,  in ubifs_rename()
969 			struct inode *new_dir, struct dentry *new_dentry)  in ubifs_rename()
972 	struct inode *old_inode = d_inode(old_dentry);  in ubifs_rename()
973 	struct inode *new_inode = d_inode(new_dentry);  in ubifs_rename()
1138 	struct inode *inode = d_inode(dentry);  in ubifs_getattr()  local
1139 	struct ubifs_inode *ui = ubifs_inode(inode);  in ubifs_getattr()
1142 	generic_fillattr(inode, stat);  in ubifs_getattr()
1158 	if (S_ISREG(inode->i_mode)) {  in ubifs_getattr()