[PATCH v2 0/8] Add tests for zero range into xfstests

[Lukas Czerner]

Hi,

this patch set adds two new test for zero range into xfstests - generic/008
and ext4/001. It also adds zero range support for fsstress and fsx.

Thanks!
-Lukas

Changes in v2:
- fsstress print left over flag values
- rework test_fallocate() to work properly