[libvirt] [PATCH 0/4] catch bogus 'blockcommit --base=a --top=a'

This patch series was first hinted at here: https://www.redhat.com/archives/libvir-list/2014-June/msg00589.html It fixes a minor bug that has existed since blockcommit was first added, where we had an off-by-one that caused us to generate different error messages in some cases where a user was passing an impossible request to blockcommit (basically, we tried to filter bogus cases up front to give a nice message, but missed one case that resulted in reporting a different message from qemu instead). I apologize in advance for the conflicts this creates with Peter's pending series, but think that the testsuite is both more legible and more thorough with the changes added in this series. It's split into several patches to make review easier. And can I just add that it is annoying dealing with gcc's: virstoragetest.c:1076:1: error: the frame size of 6608 bytes is larger than 4096 bytes [-Werror=frame-larger-than=] (although I agree with the need for keeping that warning) Eric Blake (4): storage: add alias for less typing storage: renumber lookup tests storage: better tests of lookup blockcommit: require base below top src/qemu/qemu_driver.c | 3 +- src/util/virstoragefile.c | 33 +++++---- tests/virstoragetest.c | 184 ++++++++++++++++++++++++++++------------------ 3 files changed, 135 insertions(+), 85 deletions(-) -- 1.9.3