Hi all, This series starts by refactoring boilerplate code around fail_make_request (aka error injection in the block layer) and then enhances it to play nicely with multi-device XFS filesystems. If you're going to start using this mess, you probably ought to just pull from my git trees, which are linked below. This is an extraordinary way to destroy everything. Enjoy! Comments and questions are, as always, welcome. --D fstests git tree: https://git.kernel.org/cgit/linux/kernel/git/djwong/xfstests-dev.git/log/?h=fix-fail-make-request --- common/fail_make_request | 63 ++++++++++++++++++++++++++++++++++++++++++++++ common/rc | 7 ----- tests/btrfs/088 | 14 ++++------ tests/btrfs/150 | 13 ++++----- tests/generic/019 | 40 ++++------------------------- 5 files changed, 78 insertions(+), 59 deletions(-) create mode 100644 common/fail_make_request