[sheepdog] [PATCH 0/4] bugfix for erasure coding recovery

[Hitoshi Mitake]

This patchset removes a bug in recovery process. Current recovery
process can lose data of erasure coded VDIs when a number of nodes is
smaller than a number of data stripes.

The same thing can be found here:
https://github.com/sheepdog/sheepdog/tree/ec-recovery

Valerio, could you test it?

Hitoshi Mitake (4):
  sheep: let add_vdi_state() be a thread safe
  sheep: compare oid directly
  sheep: rollback vnode info which is younger than last gathered epoch
    for ec
  tests/functional: a new test for erasure coding recovery

 sheep/recovery.c         | 18 ++++++++++--------
 sheep/vdi.c              |  4 ++++
 tests/functional/098     | 46 ++++++++++++++++++++++++++++++++++++++++++++++
 tests/functional/098.out | 36 ++++++++++++++++++++++++++++++++++++
 tests/functional/group   |  1 +
 5 files changed, 97 insertions(+), 8 deletions(-)
 create mode 100755 tests/functional/098
 create mode 100644 tests/functional/098.out

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1.8.3.2