Re: [Qemu-block] [Qemu-devel] [PATCH 00/13] Dirty bitmap changes for migration/persistence work

[Fam Zheng]

On Thu, 01/07 16:32, John Snow wrote:
> 
> 
> On 01/04/2016 05:27 AM, Fam Zheng wrote:
> > Two major features are added to block dirty bitmap (and underlying HBitmap) 
> > in
> > this series: meta bitmap and serialization, together with all other 
> > supportive
> > patches.
> > 
> > Both operations are common in dirty bitmap migration and persistence: they 
> > need
> > to find whether and which part of the dirty bitmap in question has changed 
> > with
> > meta dirty bitmap, and they need to write it to the target with 
> > serialization.
> > 
> > Fam Zheng (11):
> >   backup: Use Bitmap to replace "s->bitmap"
> >   typedefs: Add BdrvDirtyBitmap and HBitmapIter
> >   block: Move block dirty bitmap code to separate files
> >   block: Remove unused typedef of BlockDriverDirtyHandler
> >   block: Hide HBitmap in block dirty bitmap interface
> >   HBitmap: Introduce "meta" bitmap to track bit changes
> >   tests: Add test code for meta bitmap
> >   block: Support meta dirty bitmap
> >   block: Add two dirty bitmap getters
> >   block: Assert that bdrv_release_dirty_bitmap succeeded
> >   tests: Add test code for hbitmap serialization
> > 
> > Vladimir Sementsov-Ogievskiy (2):
> >   hbitmap: serialization
> >   block: BdrvDirtyBitmap serialization interface
> > 
> >  block.c                      | 339 -----------------------------
> >  block/Makefile.objs          |   2 +-
> >  block/backup.c               |  25 ++-
> >  block/dirty-bitmap.c         | 491 
> > +++++++++++++++++++++++++++++++++++++++++++
> >  block/mirror.c               |  14 +-
> >  include/block/block.h        |  39 +---
> >  include/block/dirty-bitmap.h |  70 ++++++
> >  include/qemu/hbitmap.h       |  84 ++++++++
> >  include/qemu/typedefs.h      |   3 +
> >  tests/test-hbitmap.c         | 252 ++++++++++++++++++++++
> >  util/hbitmap.c               | 197 +++++++++++++++--
> >  11 files changed, 1106 insertions(+), 410 deletions(-)
> >  create mode 100644 block/dirty-bitmap.c
> >  create mode 100644 include/block/dirty-bitmap.h
> > 
> 
> That's all I've got for now. Happy New Year!
> 
> What's your roadmap for these patches? This, then QBM?

Yes, QBM is on the way, right after this.

Fam