Re: [Qemu-devel] [PATCH v4 00/15] Dirty bitmap changes for migration/persistence work

[Max Reitz <mreitz@redhat.com>]

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On 08.03.2016 05:44, Fam Zheng wrote:
> v4: Rebase.
>     Add rev-by from John in patches 1-5, 7, 8.
>     Remove BdrvDirtyBitmap typedef from dirty-bitmap.h in patch 4. [Max]
>     Add assertion on bm->meta in patch 9. [John]
> 
> 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 (13):
>   backup: Use Bitmap to replace "s->bitmap"
>   block: Include hbitmap.h in block.h
>   typedefs: Add BdrvDirtyBitmap
>   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
>   block: More operations for meta dirty bitmap
> 
> Vladimir Sementsov-Ogievskiy (2):
>   hbitmap: serialization
>   block: BdrvDirtyBitmap serialization interface
> 
>  block.c                      | 360 -----------------------------
>  block/Makefile.objs          |   2 +-
>  block/backup.c               |  25 +-
>  block/dirty-bitmap.c         | 535 +++++++++++++++++++++++++++++++++++++++++++
>  block/mirror.c               |  15 +-
>  include/block/block.h        |  40 +---
>  include/block/dirty-bitmap.h |  75 ++++++
>  include/qemu/hbitmap.h       |  96 ++++++++
>  include/qemu/typedefs.h      |   2 +
>  tests/test-hbitmap.c         | 255 +++++++++++++++++++++
>  util/hbitmap.c               | 203 ++++++++++++++--
>  11 files changed, 1177 insertions(+), 431 deletions(-)
>  create mode 100644 block/dirty-bitmap.c
>  create mode 100644 include/block/dirty-bitmap.h

Thanks, applied patches 1 through 5 to my block tree (because of the
large code movement in patch 4):

https://github.com/XanClic/qemu/commits/block

Max


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