[RFC,v3,03/14] block: BdrvDirtyBitmap serialization interface

Several functions to provide necessary access to BdrvDirtyBitmap for
block-migration.c

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@parallels.com>
---
 block.c               | 36 ++++++++++++++++++++++++++++++++++++
 include/block/block.h | 13 +++++++++++++
 2 files changed, 49 insertions(+)

On 02/18/2015 09:00 AM, Vladimir Sementsov-Ogievskiy wrote:
> Several functions to provide necessary access to BdrvDirtyBitmap for
> block-migration.c
>
> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@parallels.com>
> ---
>   block.c               | 36 ++++++++++++++++++++++++++++++++++++
>   include/block/block.h | 13 +++++++++++++
>   2 files changed, 49 insertions(+)
>
> diff --git a/block.c b/block.c
> index e4547d7..e95a5ae 100644
> --- a/block.c
> +++ b/block.c
> @@ -5674,6 +5674,42 @@ void bdrv_clear_dirty_bitmap(BdrvDirtyBitmap *bitmap)
>       hbitmap_reset(bitmap->bitmap, 0, bitmap->size);
>   }
>
> +const char *bdrv_dirty_bitmap_name(const BdrvDirtyBitmap *bitmap)
> +{
> +    return bitmap->name;
> +}
> +
> +uint64_t bdrv_dirty_bitmap_data_size(const BdrvDirtyBitmap *bitmap,
> +                                     uint64_t count)
> +{
> +    return hbitmap_data_size(bitmap->bitmap, count);
> +}
> +
> +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)
> +{
> +    hbitmap_deserialize_part(bitmap->bitmap, buf, start, count);
> +}
> +
> +void bdrv_dirty_bitmap_deserialize_zeroes(BdrvDirtyBitmap *bitmap,
> +                                          uint64_t start, uint64_t count)
> +{
> +    hbitmap_deserialize_zeroes(bitmap->bitmap, start, count);
> +}
> +
> +void bdrv_dirty_bitmap_deserialize_finish(BdrvDirtyBitmap *bitmap)
> +{
> +    hbitmap_deserialize_finish(bitmap->bitmap);
> +}
> +
>   static void bdrv_set_dirty(BlockDriverState *bs, int64_t cur_sector,
>                              int nr_sectors)
>   {
> diff --git a/include/block/block.h b/include/block/block.h
> index c9d96a6..c6a928d 100644
> --- a/include/block/block.h
> +++ b/include/block/block.h
> @@ -474,6 +474,19 @@ void bdrv_dirty_iter_init(BdrvDirtyBitmap *bitmap, struct HBitmapIter *hbi);
>   void bdrv_set_dirty_iter(struct HBitmapIter *hbi, int64_t offset);
>   int64_t bdrv_get_dirty_count(BdrvDirtyBitmap *bitmap);
>
> +const char *bdrv_dirty_bitmap_name(const BdrvDirtyBitmap *bitmap);
> +uint64_t bdrv_dirty_bitmap_data_size(const BdrvDirtyBitmap *bitmap,
> +                                     uint64_t count);
> +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);
> +void bdrv_dirty_bitmap_deserialize_zeroes(BdrvDirtyBitmap *bitmap,
> +                                          uint64_t start, uint64_t count);
> +void bdrv_dirty_bitmap_deserialize_finish(BdrvDirtyBitmap *bitmap);
> +
>   void bdrv_enable_copy_on_read(BlockDriverState *bs);
>   void bdrv_disable_copy_on_read(BlockDriverState *bs);
>
>

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