[libvirt] [PATCH v2 00/12] more progress towards backing chain allocation stats

[Eric Blake]

> v1 was here:
> https://www.redhat.com/archives/libvir-list/2014-December/msg00370.html
> 
> ACKed patches from that series have been pushed.  In this series,
> 3, 4, and 6 are new, and others try to address some of the feedback
> and deal with rebased design decisions that resulted.  I still don't
> have things reporting quite as nicely as I would like (it turns out
> that we HAVE to stat() a file for an online domain to learn its
> allocation, and that for block devices, we HAVE to open()/lseek() to
> learn its physical size; meanwhile, I still want to fix
> virDomainGetBlockInfo to avoid read()ing a file while qemu is
> active by reusing the code that getStats uses).  But I'm posting
> another round now, to hopefully get early patches ACKed and into
> the tree, and to demonstrate that I now have recursive stat
> collection for an active domain relying solely on qemu rather than
> read()ing the backing files directly.

Oh, and patches are also available at 
git fetch git://repo.or.cz/libvirt/ericb.git getstats

or browsed at:
http://repo.or.cz/w/libvirt/ericb.git/tree/refs/heads/getstats

> 
> Eric Blake (12):
>   qemu: refactor blockinfo job handling
>   qemu: let blockinfo reuse virStorageSource
>   getstats: prepare monitor collection for recursion
>   getstats: perform recursion in monitor collection
>   getstats: rearrange blockinfo gathering
>   qemu: fix bugs in blockstats
>   qemu: refactor blockinfo data gathering
>   getstats: report block sizes for offline domains
>   getstats: prepare for dynamic block.count stat
>   getstats: add new flag for block backing chain
>   getstats: split block stats reporting for easier recursion
>   getstats: start crawling backing chain for qemu
> 
>  include/libvirt/libvirt-domain.h |  24 +-
>  src/libvirt-domain.c             |   7 +-
>  src/qemu/qemu_domain.c           |  19 ++
>  src/qemu/qemu_domain.h           |   1 +
>  src/qemu/qemu_driver.c           | 477
>  ++++++++++++++++++++++++---------------
>  src/qemu/qemu_migration.c        |   3 +-
>  src/qemu/qemu_monitor.c          |  24 +-
>  src/qemu/qemu_monitor.h          |   6 +-
>  src/qemu/qemu_monitor_json.c     | 291 ++++++++++++++----------
>  src/qemu/qemu_monitor_json.h     |   6 +-
>  src/util/virstoragefile.c        |   3 +-
>  src/util/virstoragefile.h        |   3 +-
>  tools/virsh-domain-monitor.c     |   7 +
>  tools/virsh.pod                  |   8 +-
>  14 files changed, 558 insertions(+), 321 deletions(-)
> 
> --
> 1.9.3
> 
> --
> libvir-list mailing list
> libvir-list at redhat.com
> https://www.redhat.com/mailman/listinfo/libvir-list
> 

-- 
Eric Blake   eblake at redhat.com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org