[PATCHv4 00/10] Add BlkIO and CPU/mem stat API implementations for lxc

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This patch set adds block io, memory and domain cpu statistics API
slot implementations to the LXC driver, in order to get linux
container monitoring and accounting a bit closer to qemu standards.

The last patch is a tad quirky (happy to hear suggestions on
alternative ways), in that it widens the permissible value set
at the .domainBlockStats slot: for lxc guests, it is relatively
likely to have zero disk devices, since host filesystems can be
used via passthrough bind mounts. Therefore, passing the zero-length
string as device path, is interpreted as 'return summary stats for
the entire domains's block io'.

v4 addresses the last remaining review comments.

Thorsten Behrens (10):
  Add util virCgroupGetBlkioIo*Serviced methods.
  Implement domainMemoryStats API slot for LXC driver.
  Make qemuGetDomainTotalCPUStats a virCgroup function.
  Implement domainGetCPUStats for lxc driver.
  Implement lxcDomainBlockStats* for lxc driver
  Widening API change - accept empty path for virDomainBlockStats
  Add unit test for virCgroupGetBlkioIo*Serviced
  Add unit test for virCgroupGetMemoryUsage.
  Fix misspelled cpuacct.usage_percpu in cgroup mock.
  Add unit test for virCgroupGetPercpuStats.

 src/libvirt.c                |   8 +-
 src/libvirt_private.syms     |   4 +
 src/lxc/lxc_driver.c         | 300 +++++++++++++++++++++++++++++++++
 src/qemu/qemu_driver.c       |  54 +-----
 src/util/vircgroup.c         | 382 +++++++++++++++++++++++++++++++++++++++++++
 src/util/vircgroup.h         |  24 +++
 tests/testutilslxc.h         |   3 +
 tests/vircgroupmock.c        | 100 ++++++++++-
 tests/vircgrouptest.c        | 230 ++++++++++++++++++++++++++
 tools/virsh-domain-monitor.c |  11 +-
 tools/virsh.pod              |   5 +-
 11 files changed, 1059 insertions(+), 62 deletions(-)

-- 
1.8.4.5

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