Re: [Qemu-devel] [PATCH v2 12/13] block: BdrvDirtyBitmap serialization interface

[John Snow <jsnow@redhat.com>]

On 01/20/2016 01:11 AM, Fam Zheng wrote:
> From: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
> 
> Several functions to provide necessary access to BdrvDirtyBitmap for
> block-migration.c
> 
> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
> [Add the "finish" parameters. - Fam]
> Signed-off-by: Fam Zheng <famz@redhat.com>
> ---
>  block/dirty-bitmap.c         | 37 +++++++++++++++++++++++++++++++++++++
>  include/block/dirty-bitmap.h | 14 ++++++++++++++
>  2 files changed, 51 insertions(+)
> 
> diff --git a/block/dirty-bitmap.c b/block/dirty-bitmap.c
> index ec13d38..919ce10 100644
> --- a/block/dirty-bitmap.c
> +++ b/block/dirty-bitmap.c
> @@ -429,6 +429,43 @@ void bdrv_undo_clear_dirty_bitmap(BdrvDirtyBitmap *bitmap, HBitmap *in)
>      hbitmap_free(tmp);
>  }
>  
> +uint64_t bdrv_dirty_bitmap_serialization_size(const BdrvDirtyBitmap *bitmap,
> +                                              uint64_t start, uint64_t count)
> +{
> +    return hbitmap_serialization_size(bitmap->bitmap, start, count);
> +}
> +
> +uint64_t bdrv_dirty_bitmap_serialization_align(const BdrvDirtyBitmap *bitmap)
> +{
> +    return hbitmap_serialization_granularity(bitmap->bitmap);
> +}
> +
> +void bdrv_dirty_bitmap_serialize_part(const BdrvDirtyBitmap *bitmap,
> +                                      uint8_t *buf, uint64_t start,
> +                                      uint64_t count)
> +{
> +    hbitmap_serialize_part(bitmap->bitmap, buf, start, count);
> +}
> +
> +void bdrv_dirty_bitmap_deserialize_part(BdrvDirtyBitmap *bitmap,
> +                                        uint8_t *buf, uint64_t start,
> +                                        uint64_t count, bool finish)
> +{
> +    hbitmap_deserialize_part(bitmap->bitmap, buf, start, count, finish);
> +}
> +
> +void bdrv_dirty_bitmap_deserialize_zeroes(BdrvDirtyBitmap *bitmap,
> +                                          uint64_t start, uint64_t count,
> +                                          bool finish)
> +{
> +    hbitmap_deserialize_zeroes(bitmap->bitmap, start, count, finish);
> +}
> +
> +void bdrv_dirty_bitmap_deserialize_finish(BdrvDirtyBitmap *bitmap)
> +{
> +    hbitmap_deserialize_finish(bitmap->bitmap);
> +}
> +
>  void bdrv_set_dirty(BlockDriverState *bs, int64_t cur_sector,
>                      int nr_sectors)
>  {
> diff --git a/include/block/dirty-bitmap.h b/include/block/dirty-bitmap.h
> index 8c29c3e..6ba5bec 100644
> --- a/include/block/dirty-bitmap.h
> +++ b/include/block/dirty-bitmap.h
> @@ -54,4 +54,18 @@ void bdrv_set_dirty_iter(BdrvDirtyBitmapIter *hbi, int64_t sector_num);
>  int64_t bdrv_get_dirty_count(BdrvDirtyBitmap *bitmap);
>  void bdrv_dirty_bitmap_truncate(BlockDriverState *bs);
>  
> +uint64_t bdrv_dirty_bitmap_serialization_size(const BdrvDirtyBitmap *bitmap,
> +                                              uint64_t start, uint64_t count);
> +uint64_t bdrv_dirty_bitmap_serialization_align(const BdrvDirtyBitmap *bitmap);
> +void bdrv_dirty_bitmap_serialize_part(const BdrvDirtyBitmap *bitmap,
> +                                      uint8_t *buf, uint64_t start,
> +                                      uint64_t count);
> +void bdrv_dirty_bitmap_deserialize_part(BdrvDirtyBitmap *bitmap,
> +                                        uint8_t *buf, uint64_t start,
> +                                        uint64_t count, bool finish);
> +void bdrv_dirty_bitmap_deserialize_zeroes(BdrvDirtyBitmap *bitmap,
> +                                          uint64_t start, uint64_t count,
> +                                          bool finish);
> +void bdrv_dirty_bitmap_deserialize_finish(BdrvDirtyBitmap *bitmap);
> +
>  #endif
> 

Reviewed-by: John Snow <jsnow@redhat.com>