updates to XFS User Guide

Various updates to chapters 1,2,4 and 5 of the XFS User Guide.

Fixed various spelling/grammar mistakes, updated outdated and/or
incorrect facts, added some new slides for delayed allocation and
direct i/o.

Reviewed-by: Christoph Hellwig <hch@lst.de>
5 files changed
tree: b86500e11ee668e74268d911cb1a105c09920416
  1. XFS_Filesystem_Structure/
  2. XFS_Labs/
  3. XFS_User_Guide/
  4. Makefile