IOmap Improvement For Linux 7.3 Takes EXT4 & XFS Performance Further

As part of the VFS pull requests now merged to the Linux 7.3 development kernel was an improvement to the IOmap framework used by various file-systems for mapping logical file byte offsets in memory to their physical locations on storage.

With the now-merged code, this modern block mapping framework is allowing better performance at least for the EXT4 file-system...