[Qemu-devel] [PATCH RESEND 0/2] PoC: Block replication for continuous checkpointing

[Yang Hongyang]

Hi all,

Please ignore the previous one, this is the updated patch.

We are implementing COLO feature for QEMU.
For what COLO is and steps to setup and runing COLO, refer to:
http://wiki.qemu.org/Features/COLO
  * you can get almost everything about COLO from that Wiki page.
Previously posted RFC proposal:
http://lists.nongnu.org/archive/html/qemu-devel/2014-06/msg05567.html
Latest COLO code:
https://github.com/macrosheep/qemu (checkout the latest COLO branch)

Our current work is implementing COLO Disk manager, we are planning to
implement it as a block driver which called 'blkcolo'. But we need the
feedbacks from commiunity.

This patchset is a Proof of Concept of our Block replication design,
including:
  1. A document 'docs/blkcolo.txt' which describes the drift design
     specification.
  2. Some DEMO/POC code that will help you to understand how we are
     going to implement it.

Please feel free to comment.
We want comments/feedbacks as many as possiable please, thanks in advance.

Thanks,
Yang.

Wen Congyang (1):
  PoC: Block replication for COLO

Yang Hongyang (1):
  Block: Block replication design for COLO

 block.c                   |  48 +++++++
 block/blkcolo.c           | 338 ++++++++++++++++++++++++++++++++++++++++++++++
 docs/blkcolo.txt          |  85 ++++++++++++
 include/block/block.h     |   6 +
 include/block/block_int.h |  21 +++
 5 files changed, 498 insertions(+)
 create mode 100644 block/blkcolo.c
 create mode 100644 docs/blkcolo.txt

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1.9.1