On Thu, Mar 30, 2017 at 05:19:01PM +0400, Dmitry Monakhov wrote: > During LSFMM we have discussed how to test lower-backend of linux IO-stack. > Common opinion was that xfstests is the most obvious solution which cover > most of use cases filesystem care about. > > I'm working on integration T10-DIF/DIF data integrity features to ext4, > for that reason we need to be shure that linux integrity framework is > in working state, which is currently broken in several places. > > In fact, it is relatively simple to add basic coverage tests for basic > IO operations over virtual device with integrity support. All we need > is to add lio target support. First: Thanks for adding block layer testing! Second: even more so than Darrick's blockdev fallocate test this is the wrong place. If I run xfstests I want to test my file system, not random block device features. Please start a proper block device testsuite instead, possibly by copy and pasting code from xfstests. That's how I started the test suite for qemu's block layer for example.
