71c943dc40
Inspired by: https://github.com/systemd/systemd/pull/24141 Calling fd_is_mountpoint() with AT_EMPTYPATH and an empty filename can only work if we have new statx() available. If we do not, we can still make things work for directories, but not for other inodes (since there we cannot query information about the parent inode to compare things.) Hence, let's handle and test this explicitly, to support this to the level this is possible.
System and Service Manager
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