[Qemu-devel] [PATCH 0/3] Re-factor img_create() and add live snapshots

[Jes . Sorensen]

From: Jes Sorensen <address@hidden>

Hi,

This set of patches re-factors img_create() and moves the core part of
it into block.c so it can be accessed from qemu as well as
qemu-img. The second patch adds basic live snapshots support to the
code, however only snapshots to external QCOW2 images is supported for
now. QED support should be trivial once the QED patches go into
upstream.

The last patch fixes a small gotcha which is present in the old code
as well. Try to catch cases where a user tries to create an image with
itself as the backing file. QEMU does 'interesting' things when you do
this.....

Many thanks to Kevin for his help with block layer internals!

Cheers,
Jes


Jes Sorensen (3):
  qemu-img.c: Re-factor img_create()
  Introduce do_snapshot_blkdev() and monitor command to handle it.
  Prevent creating an image with the same filename as backing file

 block.c         |  148 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 block.h         |    4 ++
 blockdev.c      |   61 +++++++++++++++++++++++
 blockdev.h      |    1 +
 hmp-commands.hx |   19 +++++++
 qemu-img.c      |  106 +--------------------------------------
 6 files changed, 235 insertions(+), 104 deletions(-)

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1.7.3.2