47 static int inherit_flags(const struct inode *dir, umode_t mode)  in inherit_flags()  argument
50 	const struct ubifs_inode *ui = ubifs_inode(dir);  in inherit_flags()
52 	if (!S_ISDIR(dir->i_mode))  in inherit_flags()
76 struct inode *ubifs_new_inode(struct ubifs_info *c, struct inode *dir,  in ubifs_new_inode()  argument
97 	inode_init_owner(inode, dir, mode);  in ubifs_new_inode()
102 	err = fscrypt_prepare_new_inode(dir, inode, &encrypted);  in ubifs_new_inode()
132 	ui->flags = inherit_flags(dir, mode);  in ubifs_new_inode()
193 static struct dentry *ubifs_lookup(struct inode *dir, struct dentry *dentry,  in ubifs_lookup()  argument
200 	struct ubifs_info *c = dir->i_sb->s_fs_info;  in ubifs_lookup()
203 	dbg_gen("'%pd' in dir ino %lu", dentry, dir->i_ino);  in ubifs_lookup()
205 	err = fscrypt_prepare_lookup(dir, dentry, &nm);  in ubifs_lookup()
226 		dent_key_init_hash(c, &key, dir->i_ino, nm.hash);  in ubifs_lookup()
229 		dent_key_init(c, &key, dir->i_ino, &nm);  in ubifs_lookup()
246 	inode = ubifs_iget(dir->i_sb, le64_to_cpu(dent->inum));  in ubifs_lookup()
259 	if (IS_ENCRYPTED(dir) &&  in ubifs_lookup()
261 	    !fscrypt_has_permitted_context(dir, inode)) {  in ubifs_lookup()
263 			   dir->i_ino, inode->i_ino);  in ubifs_lookup()
274 static int ubifs_prepare_create(struct inode *dir, struct dentry *dentry,  in ubifs_prepare_create()  argument
280 	return fscrypt_setup_filename(dir, &dentry->d_name, 0, nm);  in ubifs_prepare_create()
283 static int ubifs_create(struct inode *dir, struct dentry *dentry, umode_t mode,  in ubifs_create()  argument
287 	struct ubifs_info *c = dir->i_sb->s_fs_info;  in ubifs_create()
290 	struct ubifs_inode *dir_ui = ubifs_inode(dir);  in ubifs_create()
300 		dentry, mode, dir->i_ino);  in ubifs_create()
306 	err = ubifs_prepare_create(dir, dentry, &nm);  in ubifs_create()
312 	inode = ubifs_new_inode(c, dir, mode);  in ubifs_create()
318 	err = ubifs_init_security(dir, inode, &dentry->d_name);  in ubifs_create()
323 	dir->i_size += sz_change;  in ubifs_create()
324 	dir_ui->ui_size = dir->i_size;  in ubifs_create()
325 	dir->i_mtime = dir->i_ctime = inode->i_ctime;  in ubifs_create()
326 	err = ubifs_jnl_update(c, dir, &nm, inode, 0, 0);  in ubifs_create()
338 	dir->i_size -= sz_change;  in ubifs_create()
339 	dir_ui->ui_size = dir->i_size;  in ubifs_create()
352 static int do_tmpfile(struct inode *dir, struct dentry *dentry,  in do_tmpfile()  argument
356 	struct ubifs_info *c = dir->i_sb->s_fs_info;  in do_tmpfile()
360 	struct ubifs_inode *ui, *dir_ui = ubifs_inode(dir);  in do_tmpfile()
372 		dentry, mode, dir->i_ino);  in do_tmpfile()
374 	err = fscrypt_setup_filename(dir, &dentry->d_name, 0, &nm);  in do_tmpfile()
391 	inode = ubifs_new_inode(c, dir, mode);  in do_tmpfile()
403 	err = ubifs_init_security(dir, inode, &dentry->d_name);  in do_tmpfile()
423 	err = ubifs_jnl_update(c, dir, &nm, inode, 1, 0);  in do_tmpfile()
449 static int ubifs_tmpfile(struct inode *dir, struct dentry *dentry,  in ubifs_tmpfile()  argument
452 	return do_tmpfile(dir, dentry, mode, NULL);  in ubifs_tmpfile()
509 	struct inode *dir = file_inode(file);  in ubifs_readdir()  local
510 	struct ubifs_info *c = dir->i_sb->s_fs_info;  in ubifs_readdir()
511 	bool encrypted = IS_ENCRYPTED(dir);  in ubifs_readdir()
513 	dbg_gen("dir ino %lu, f_pos %#llx", dir->i_ino, ctx->pos);  in ubifs_readdir()
523 		err = fscrypt_prepare_readdir(dir);  in ubifs_readdir()
562 		lowest_dent_key(c, &key, dir->i_ino);  in ubifs_readdir()
580 		dent_key_init_hash(c, &key, dir->i_ino, ctx->pos);  in ubifs_readdir()
596 			     ubifs_inode(dir)->creat_sqnum);  in ubifs_readdir()
604 			err = fscrypt_fname_disk_to_usr(dir, key_hash_flash(c,  in ubifs_readdir()
661 static int ubifs_dir_release(struct inode *dir, struct file *file)  in ubifs_dir_release()  argument
694 static int ubifs_link(struct dentry *old_dentry, struct inode *dir,  in ubifs_link()  argument
697 	struct ubifs_info *c = dir->i_sb->s_fs_info;  in ubifs_link()
700 	struct ubifs_inode *dir_ui = ubifs_inode(dir);  in ubifs_link()
713 		inode->i_nlink, dir->i_ino);  in ubifs_link()
714 	ubifs_assert(c, inode_is_locked(dir));  in ubifs_link()
717 	err = fscrypt_prepare_link(old_dentry, dir, dentry);  in ubifs_link()
721 	err = fscrypt_setup_filename(dir, &dentry->d_name, 0, &nm);  in ubifs_link()
733 	lock_2_inodes(dir, inode);  in ubifs_link()
742 	dir->i_size += sz_change;  in ubifs_link()
743 	dir_ui->ui_size = dir->i_size;  in ubifs_link()
744 	dir->i_mtime = dir->i_ctime = inode->i_ctime;  in ubifs_link()
745 	err = ubifs_jnl_update(c, dir, &nm, inode, 0, 0);  in ubifs_link()
748 	unlock_2_inodes(dir, inode);  in ubifs_link()
756 	dir->i_size -= sz_change;  in ubifs_link()
757 	dir_ui->ui_size = dir->i_size;  in ubifs_link()
761 	unlock_2_inodes(dir, inode);  in ubifs_link()
769 static int ubifs_unlink(struct inode *dir, struct dentry *dentry)  in ubifs_unlink()  argument
771 	struct ubifs_info *c = dir->i_sb->s_fs_info;  in ubifs_unlink()
773 	struct ubifs_inode *dir_ui = ubifs_inode(dir);  in ubifs_unlink()
788 		inode->i_nlink, dir->i_ino);  in ubifs_unlink()
790 	err = fscrypt_setup_filename(dir, &dentry->d_name, 1, &nm);  in ubifs_unlink()
800 	ubifs_assert(c, inode_is_locked(dir));  in ubifs_unlink()
813 	lock_2_inodes(dir, inode);  in ubifs_unlink()
814 	inode->i_ctime = current_time(dir);  in ubifs_unlink()
816 	dir->i_size -= sz_change;  in ubifs_unlink()
817 	dir_ui->ui_size = dir->i_size;  in ubifs_unlink()
818 	dir->i_mtime = dir->i_ctime = inode->i_ctime;  in ubifs_unlink()
819 	err = ubifs_jnl_update(c, dir, &nm, inode, 1, 0);  in ubifs_unlink()
822 	unlock_2_inodes(dir, inode);  in ubifs_unlink()
835 	dir->i_size += sz_change;  in ubifs_unlink()
836 	dir_ui->ui_size = dir->i_size;  in ubifs_unlink()
838 	unlock_2_inodes(dir, inode);  in ubifs_unlink()
854 int ubifs_check_dir_empty(struct inode *dir)  in ubifs_check_dir_empty()  argument
856 	struct ubifs_info *c = dir->i_sb->s_fs_info;  in ubifs_check_dir_empty()
862 	lowest_dent_key(c, &key, dir->i_ino);  in ubifs_check_dir_empty()
875 static int ubifs_rmdir(struct inode *dir, struct dentry *dentry)  in ubifs_rmdir()  argument
877 	struct ubifs_info *c = dir->i_sb->s_fs_info;  in ubifs_rmdir()
880 	struct ubifs_inode *dir_ui = ubifs_inode(dir);  in ubifs_rmdir()
891 		inode->i_ino, dir->i_ino);  in ubifs_rmdir()
892 	ubifs_assert(c, inode_is_locked(dir));  in ubifs_rmdir()
898 	err = fscrypt_setup_filename(dir, &dentry->d_name, 1, &nm);  in ubifs_rmdir()
915 	lock_2_inodes(dir, inode);  in ubifs_rmdir()
916 	inode->i_ctime = current_time(dir);  in ubifs_rmdir()
918 	drop_nlink(dir);  in ubifs_rmdir()
919 	dir->i_size -= sz_change;  in ubifs_rmdir()
920 	dir_ui->ui_size = dir->i_size;  in ubifs_rmdir()
921 	dir->i_mtime = dir->i_ctime = inode->i_ctime;  in ubifs_rmdir()
922 	err = ubifs_jnl_update(c, dir, &nm, inode, 1, 0);  in ubifs_rmdir()
925 	unlock_2_inodes(dir, inode);  in ubifs_rmdir()
938 	dir->i_size += sz_change;  in ubifs_rmdir()
939 	dir_ui->ui_size = dir->i_size;  in ubifs_rmdir()
940 	inc_nlink(dir);  in ubifs_rmdir()
942 	unlock_2_inodes(dir, inode);  in ubifs_rmdir()
950 static int ubifs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)  in ubifs_mkdir()  argument
953 	struct ubifs_inode *dir_ui = ubifs_inode(dir);  in ubifs_mkdir()
954 	struct ubifs_info *c = dir->i_sb->s_fs_info;  in ubifs_mkdir()
966 		dentry, mode, dir->i_ino);  in ubifs_mkdir()
972 	err = ubifs_prepare_create(dir, dentry, &nm);  in ubifs_mkdir()
978 	inode = ubifs_new_inode(c, dir, S_IFDIR | mode);  in ubifs_mkdir()
984 	err = ubifs_init_security(dir, inode, &dentry->d_name);  in ubifs_mkdir()
991 	inc_nlink(dir);  in ubifs_mkdir()
992 	dir->i_size += sz_change;  in ubifs_mkdir()
993 	dir_ui->ui_size = dir->i_size;  in ubifs_mkdir()
994 	dir->i_mtime = dir->i_ctime = inode->i_ctime;  in ubifs_mkdir()
995 	err = ubifs_jnl_update(c, dir, &nm, inode, 0, 0);  in ubifs_mkdir()
1008 	dir->i_size -= sz_change;  in ubifs_mkdir()
1009 	dir_ui->ui_size = dir->i_size;  in ubifs_mkdir()
1010 	drop_nlink(dir);  in ubifs_mkdir()
1022 static int ubifs_mknod(struct inode *dir, struct dentry *dentry,  in ubifs_mknod()  argument
1027 	struct ubifs_inode *dir_ui = ubifs_inode(dir);  in ubifs_mknod()
1028 	struct ubifs_info *c = dir->i_sb->s_fs_info;  in ubifs_mknod()
1041 	dbg_gen("dent '%pd' in dir ino %lu", dentry, dir->i_ino);  in ubifs_mknod()
1057 	err = ubifs_prepare_create(dir, dentry, &nm);  in ubifs_mknod()
1065 	inode = ubifs_new_inode(c, dir, mode);  in ubifs_mknod()
1078 	err = ubifs_init_security(dir, inode, &dentry->d_name);  in ubifs_mknod()
1083 	dir->i_size += sz_change;  in ubifs_mknod()
1084 	dir_ui->ui_size = dir->i_size;  in ubifs_mknod()
1085 	dir->i_mtime = dir->i_ctime = inode->i_ctime;  in ubifs_mknod()
1086 	err = ubifs_jnl_update(c, dir, &nm, inode, 0, 0);  in ubifs_mknod()
1098 	dir->i_size -= sz_change;  in ubifs_mknod()
1099 	dir_ui->ui_size = dir->i_size;  in ubifs_mknod()
1111 static int ubifs_symlink(struct inode *dir, struct dentry *dentry,  in ubifs_symlink()  argument
1116 	struct ubifs_inode *dir_ui = ubifs_inode(dir);  in ubifs_symlink()
1117 	struct ubifs_info *c = dir->i_sb->s_fs_info;  in ubifs_symlink()
1126 		symname, dir->i_ino);  in ubifs_symlink()
1128 	err = fscrypt_prepare_symlink(dir, symname, len, UBIFS_MAX_INO_DATA,  in ubifs_symlink()
1141 	err = ubifs_prepare_create(dir, dentry, &nm);  in ubifs_symlink()
1147 	inode = ubifs_new_inode(c, dir, S_IFLNK | S_IRWXUGO);  in ubifs_symlink()
1178 	err = ubifs_init_security(dir, inode, &dentry->d_name);  in ubifs_symlink()
1183 	dir->i_size += sz_change;  in ubifs_symlink()
1184 	dir_ui->ui_size = dir->i_size;  in ubifs_symlink()
1185 	dir->i_mtime = dir->i_ctime = inode->i_ctime;  in ubifs_symlink()
1186 	err = ubifs_jnl_update(c, dir, &nm, inode, 0, 0);  in ubifs_symlink()
1197 	dir->i_size -= sz_change;  in ubifs_symlink()
1198 	dir_ui->ui_size = dir->i_size;  in ubifs_symlink()