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[Qemu-devel] [PATCH V4 0/3] Show backing file depth in HMP

From: benoit . canet
Subject: [Qemu-devel] [PATCH V4 0/3] Show backing file depth in HMP
Date: Thu, 26 Jul 2012 13:16:03 +0200

From: Benoît Canet <address@hidden>

In some setups many backing files and snapshot are chained.
This lead to the formation of huge trees of snapshots all depending
on a common ancestor.

Hence if something bad happen to this common ancestor all the snapshot
of the tree will be broken.

This patch add an easy way for the user to monitor backing file depth
and take the good decision (streaming).

in v2:

lcapitulino: -Fix typo in qapi-schema.json
             -rename *file_ancestors_count to

in v3:

kwolf: qapi-schema.json backing_file_ancestor_count field not optional
       Add a (since 1.2) comment
       keep display in HMP optional

in v4:

eblake: rename backing_file.ancestors.count to backing.file.depth
        in qapi-schema.json use - instead of _
        Fix json docstring

Benoît Canet (3):
  block: create bdrv_get_backing_file_depth()
  block: Use bdrv_get_backing_file_depth()
  hmp: show the backing file depth

 block.c          |   16 ++++++++++++++++
 block.h          |    1 +
 hmp.c            |    2 ++
 qapi-schema.json |    9 ++++++---
 4 files changed, 25 insertions(+), 3 deletions(-)


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