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()
115 static int ecryptfs_interpose(struct dentry *lower_dentry,  in ecryptfs_interpose()  argument
118 	struct inode *inode = ecryptfs_get_inode(d_inode(lower_dentry), sb);  in ecryptfs_interpose()
130 	struct dentry *lower_dentry;  in ecryptfs_do_unlink()  local
134 	rc = lock_parent(dentry, &lower_dentry, &lower_dir);  in ecryptfs_do_unlink()
135 	dget(lower_dentry);	// don't even try to make the lower negative  in ecryptfs_do_unlink()
137 		if (d_unhashed(lower_dentry))  in ecryptfs_do_unlink()
140 			rc = vfs_unlink(&init_user_ns, lower_dir, lower_dentry,  in ecryptfs_do_unlink()
151 	dput(lower_dentry);  in ecryptfs_do_unlink()
175 	struct dentry *lower_dentry;  in ecryptfs_do_create()  local
179 	rc = lock_parent(ecryptfs_dentry, &lower_dentry, &lower_dir);  in ecryptfs_do_create()
182 				lower_dentry, mode, true);  in ecryptfs_do_create()
189 	inode = __ecryptfs_get_inode(d_inode(lower_dentry),  in ecryptfs_do_create()
192 		vfs_unlink(&init_user_ns, lower_dir, lower_dentry, NULL);  in ecryptfs_do_create()
318 				     struct dentry *lower_dentry)  in ecryptfs_lookup_interpose()  argument
327 		dput(lower_dentry);  in ecryptfs_lookup_interpose()
333 	BUG_ON(!d_count(lower_dentry));  in ecryptfs_lookup_interpose()
337 	dentry_info->lower_path.dentry = lower_dentry;  in ecryptfs_lookup_interpose()
345 	lower_inode = READ_ONCE(lower_dentry->d_inode);  in ecryptfs_lookup_interpose()
386 	struct dentry *lower_dir_dentry, *lower_dentry;  in ecryptfs_lookup()  local
408 	lower_dentry = lookup_one_len_unlocked(name, lower_dir_dentry, len);  in ecryptfs_lookup()
409 	if (IS_ERR(lower_dentry)) {  in ecryptfs_lookup()
412 				PTR_ERR(lower_dentry),  in ecryptfs_lookup()
414 		res = ERR_CAST(lower_dentry);  in ecryptfs_lookup()
416 		res = ecryptfs_lookup_interpose(ecryptfs_dentry, lower_dentry);  in ecryptfs_lookup()
462 	struct dentry *lower_dentry;  in ecryptfs_symlink()  local
468 	rc = lock_parent(dentry, &lower_dentry, &lower_dir);  in ecryptfs_symlink()
479 	rc = vfs_symlink(&init_user_ns, lower_dir, lower_dentry,  in ecryptfs_symlink()
482 	if (rc || d_really_is_negative(lower_dentry))  in ecryptfs_symlink()
484 	rc = ecryptfs_interpose(lower_dentry, dentry, dir->i_sb);  in ecryptfs_symlink()
500 	struct dentry *lower_dentry;  in ecryptfs_mkdir()  local
503 	rc = lock_parent(dentry, &lower_dentry, &lower_dir);  in ecryptfs_mkdir()
506 			       lower_dentry, mode);  in ecryptfs_mkdir()
507 	if (rc || d_really_is_negative(lower_dentry))  in ecryptfs_mkdir()
509 	rc = ecryptfs_interpose(lower_dentry, dentry, dir->i_sb);  in ecryptfs_mkdir()
524 	struct dentry *lower_dentry;  in ecryptfs_rmdir()  local
528 	rc = lock_parent(dentry, &lower_dentry, &lower_dir);  in ecryptfs_rmdir()
529 	dget(lower_dentry);	// don't even try to make the lower negative  in ecryptfs_rmdir()
531 		if (d_unhashed(lower_dentry))  in ecryptfs_rmdir()
534 			rc = vfs_rmdir(&init_user_ns, lower_dir, lower_dentry);  in ecryptfs_rmdir()
541 	dput(lower_dentry);  in ecryptfs_rmdir()
553 	struct dentry *lower_dentry;  in ecryptfs_mknod()  local
556 	rc = lock_parent(dentry, &lower_dentry, &lower_dir);  in ecryptfs_mknod()
559 			       lower_dentry, mode, dev);  in ecryptfs_mknod()
560 	if (rc || d_really_is_negative(lower_dentry))  in ecryptfs_mknod()
562 	rc = ecryptfs_interpose(lower_dentry, dentry, dir->i_sb);  in ecryptfs_mknod()
641 	struct dentry *lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_readlink_lower()  local
646 	link = vfs_get_link(lower_dentry, &done);  in ecryptfs_readlink_lower()
854 		struct dentry *lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_truncate()  local
856 		inode_lock(d_inode(lower_dentry));  in ecryptfs_truncate()
857 		rc = notify_change(&init_user_ns, lower_dentry,  in ecryptfs_truncate()
859 		inode_unlock(d_inode(lower_dentry));  in ecryptfs_truncate()
889 	struct dentry *lower_dentry;  in ecryptfs_setattr()  local
903 	lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_setattr()
965 	inode_lock(d_inode(lower_dentry));  in ecryptfs_setattr()
966 	rc = notify_change(&init_user_ns, lower_dentry, &lower_ia, NULL);  in ecryptfs_setattr()
967 	inode_unlock(d_inode(lower_dentry));  in ecryptfs_setattr()
1024 	struct dentry *lower_dentry;  in ecryptfs_setxattr()  local
1027 	lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_setxattr()
1028 	lower_inode = d_inode(lower_dentry);  in ecryptfs_setxattr()
1034 	rc = __vfs_setxattr_locked(&init_user_ns, lower_dentry, name, value, size, flags, NULL);  in ecryptfs_setxattr()
1043 ecryptfs_getxattr_lower(struct dentry *lower_dentry, struct inode *lower_inode,  in ecryptfs_getxattr_lower()  argument
1053 	rc = __vfs_getxattr(lower_dentry, lower_inode, name, value, size);  in ecryptfs_getxattr_lower()
1072 	struct dentry *lower_dentry;  in ecryptfs_listxattr()  local
1074 	lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_listxattr()
1075 	if (!d_inode(lower_dentry)->i_op->listxattr) {  in ecryptfs_listxattr()
1079 	inode_lock(d_inode(lower_dentry));  in ecryptfs_listxattr()
1080 	rc = d_inode(lower_dentry)->i_op->listxattr(lower_dentry, list, size);  in ecryptfs_listxattr()
1081 	inode_unlock(d_inode(lower_dentry));  in ecryptfs_listxattr()
1090 	struct dentry *lower_dentry;  in ecryptfs_removexattr()  local
1093 	lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_removexattr()
1100 	rc = __vfs_removexattr(&init_user_ns, lower_dentry, name);  in ecryptfs_removexattr()
1114 	struct dentry *lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_fileattr_set()  local
1117 	rc = vfs_fileattr_set(&init_user_ns, lower_dentry, fa);  in ecryptfs_fileattr_set()
1118 	fsstack_copy_attr_all(d_inode(dentry), d_inode(lower_dentry));  in ecryptfs_fileattr_set()