26 		       struct dentry **lower_dentry,  in lock_parent()  argument
33 	*lower_dentry = ecryptfs_dentry_to_lower(dentry);  in lock_parent()
36 	return (*lower_dentry)->d_parent == lower_dir_dentry ? 0 : -EINVAL;  in lock_parent()
123 static int ecryptfs_interpose(struct dentry *lower_dentry,  in ecryptfs_interpose()  argument
126 	struct inode *inode = ecryptfs_get_inode(d_inode(lower_dentry), sb);  in ecryptfs_interpose()
138 	struct dentry *lower_dentry;  in ecryptfs_do_unlink()  local
142 	rc = lock_parent(dentry, &lower_dentry, &lower_dir);  in ecryptfs_do_unlink()
143 	dget(lower_dentry);	// don't even try to make the lower negative  in ecryptfs_do_unlink()
145 		if (d_unhashed(lower_dentry))  in ecryptfs_do_unlink()
148 			rc = vfs_unlink(&init_user_ns, lower_dir, lower_dentry,  in ecryptfs_do_unlink()
159 	dput(lower_dentry);  in ecryptfs_do_unlink()
183 	struct dentry *lower_dentry;  in ecryptfs_do_create()  local
187 	rc = lock_parent(ecryptfs_dentry, &lower_dentry, &lower_dir);  in ecryptfs_do_create()
190 				lower_dentry, mode, true);  in ecryptfs_do_create()
197 	inode = __ecryptfs_get_inode(d_inode(lower_dentry),  in ecryptfs_do_create()
200 		vfs_unlink(&init_user_ns, lower_dir, lower_dentry, NULL);  in ecryptfs_do_create()
326 				     struct dentry *lower_dentry)  in ecryptfs_lookup_interpose()  argument
335 		dput(lower_dentry);  in ecryptfs_lookup_interpose()
341 	BUG_ON(!d_count(lower_dentry));  in ecryptfs_lookup_interpose()
345 	dentry_info->lower_path.dentry = lower_dentry;  in ecryptfs_lookup_interpose()
353 	lower_inode = READ_ONCE(lower_dentry->d_inode);  in ecryptfs_lookup_interpose()
394 	struct dentry *lower_dir_dentry, *lower_dentry;  in ecryptfs_lookup()  local
416 	lower_dentry = lookup_one_len_unlocked(name, lower_dir_dentry, len);  in ecryptfs_lookup()
417 	if (IS_ERR(lower_dentry)) {  in ecryptfs_lookup()
420 				PTR_ERR(lower_dentry),  in ecryptfs_lookup()
422 		res = ERR_CAST(lower_dentry);  in ecryptfs_lookup()
424 		res = ecryptfs_lookup_interpose(ecryptfs_dentry, lower_dentry);  in ecryptfs_lookup()
470 	struct dentry *lower_dentry;  in ecryptfs_symlink()  local
476 	rc = lock_parent(dentry, &lower_dentry, &lower_dir);  in ecryptfs_symlink()
487 	rc = vfs_symlink(&init_user_ns, lower_dir, lower_dentry,  in ecryptfs_symlink()
490 	if (rc || d_really_is_negative(lower_dentry))  in ecryptfs_symlink()
492 	rc = ecryptfs_interpose(lower_dentry, dentry, dir->i_sb);  in ecryptfs_symlink()
508 	struct dentry *lower_dentry;  in ecryptfs_mkdir()  local
511 	rc = lock_parent(dentry, &lower_dentry, &lower_dir);  in ecryptfs_mkdir()
514 			       lower_dentry, mode);  in ecryptfs_mkdir()
515 	if (rc || d_really_is_negative(lower_dentry))  in ecryptfs_mkdir()
517 	rc = ecryptfs_interpose(lower_dentry, dentry, dir->i_sb);  in ecryptfs_mkdir()
532 	struct dentry *lower_dentry;  in ecryptfs_rmdir()  local
536 	rc = lock_parent(dentry, &lower_dentry, &lower_dir);  in ecryptfs_rmdir()
537 	dget(lower_dentry);	// don't even try to make the lower negative  in ecryptfs_rmdir()
539 		if (d_unhashed(lower_dentry))  in ecryptfs_rmdir()
542 			rc = vfs_rmdir(&init_user_ns, lower_dir, lower_dentry);  in ecryptfs_rmdir()
549 	dput(lower_dentry);  in ecryptfs_rmdir()
561 	struct dentry *lower_dentry;  in ecryptfs_mknod()  local
564 	rc = lock_parent(dentry, &lower_dentry, &lower_dir);  in ecryptfs_mknod()
567 			       lower_dentry, mode, dev);  in ecryptfs_mknod()
568 	if (rc || d_really_is_negative(lower_dentry))  in ecryptfs_mknod()
570 	rc = ecryptfs_interpose(lower_dentry, dentry, dir->i_sb);  in ecryptfs_mknod()
649 	struct dentry *lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_readlink_lower()  local
654 	link = vfs_get_link(lower_dentry, &done);  in ecryptfs_readlink_lower()
862 		struct dentry *lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_truncate()  local
864 		inode_lock(d_inode(lower_dentry));  in ecryptfs_truncate()
865 		rc = notify_change(&init_user_ns, lower_dentry,  in ecryptfs_truncate()
867 		inode_unlock(d_inode(lower_dentry));  in ecryptfs_truncate()
897 	struct dentry *lower_dentry;  in ecryptfs_setattr()  local
911 	lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_setattr()
973 	inode_lock(d_inode(lower_dentry));  in ecryptfs_setattr()
974 	rc = notify_change(&init_user_ns, lower_dentry, &lower_ia, NULL);  in ecryptfs_setattr()
975 	inode_unlock(d_inode(lower_dentry));  in ecryptfs_setattr()
1032 	struct dentry *lower_dentry;  in ecryptfs_setxattr()  local
1035 	lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_setxattr()
1036 	lower_inode = d_inode(lower_dentry);  in ecryptfs_setxattr()
1042 	rc = __vfs_setxattr_locked(&init_user_ns, lower_dentry, name, value, size, flags, NULL);  in ecryptfs_setxattr()
1051 ecryptfs_getxattr_lower(struct dentry *lower_dentry, struct inode *lower_inode,  in ecryptfs_getxattr_lower()  argument
1061 	rc = __vfs_getxattr(lower_dentry, lower_inode, name, value, size);  in ecryptfs_getxattr_lower()
1080 	struct dentry *lower_dentry;  in ecryptfs_listxattr()  local
1082 	lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_listxattr()
1083 	if (!d_inode(lower_dentry)->i_op->listxattr) {  in ecryptfs_listxattr()
1087 	inode_lock(d_inode(lower_dentry));  in ecryptfs_listxattr()
1088 	rc = d_inode(lower_dentry)->i_op->listxattr(lower_dentry, list, size);  in ecryptfs_listxattr()
1089 	inode_unlock(d_inode(lower_dentry));  in ecryptfs_listxattr()
1098 	struct dentry *lower_dentry;  in ecryptfs_removexattr()  local
1101 	lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_removexattr()
1108 	rc = __vfs_removexattr(&init_user_ns, lower_dentry, name);  in ecryptfs_removexattr()
1122 	struct dentry *lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_fileattr_set()  local
1125 	rc = vfs_fileattr_set(&init_user_ns, lower_dentry, fa);  in ecryptfs_fileattr_set()
1126 	fsstack_copy_attr_all(d_inode(dentry), d_inode(lower_dentry));  in ecryptfs_fileattr_set()