Possible ticket #18697 regression in 6.1.20 Linux guest

[Ismas]

When installing Guest Additions from 6.1.20 in kernel 4.4.0.210-generic (Ubuntu 16.04) module vboxsf fails compiling with exactly same error as #18697.

The #ifdef stack on lines 809 onwards of utils.c produces

rc = inode_change_ok(pInode, iattr);

instead of the correct

rc = setattr_prepare(dentry, iattr);

Manually editting the file solves the problem. Maybe the v5.x kernel #ifdef breaks the #ifdef stack.

Regards

[JeremyB]

I can confirm this issue.

[galitsyn]

Thank you for reporting the issue. Could you please try the following test build for Additions:

https://www.virtualbox.org/download/testcase/VBoxGuestAdditions_6.1.23-144434.iso

[JeremyB]

I can confirm that this test version of the Guest Additions does compile and work.

[galitsyn]

Replying to JeremyB:

I can confirm that this test version of the Guest Additions does compile and work.

Thank you for the confirmation. We will include fix into the next release.