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block: BdrvDirtyBitmap serialization interface

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

Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1476395910-8697-9-git-send-email-jsnow@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
This commit is contained in:
Vladimir Sementsov-Ogievskiy 2016-10-13 17:58:28 -04:00 committed by Max Reitz
parent 8258888e22
commit 882c36f590
2 changed files with 51 additions and 0 deletions
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37
block/dirty-bitmap.c
View File

@ -453,6 +453,43 @@ 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,
int64_t nr_sectors)
{

14
include/block/dirty-bitmap.h
View File

@ -55,4 +55,18 @@ 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