Commit 882c36f5 authored by Vladimir Sementsov-Ogievskiy's avatar Vladimir Sementsov-Ogievskiy Committed by Max Reitz
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block: BdrvDirtyBitmap serialization interface 



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

Signed-off-by: default avatarVladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
[Add the "finish" parameters. - Fam]
Signed-off-by: default avatarFam Zheng <famz@redhat.com>
Reviewed-by: default avatarJohn Snow <jsnow@redhat.com>
Reviewed-by: default avatarMax Reitz <mreitz@redhat.com>

Signed-off-by: default avatarJohn Snow <jsnow@redhat.com>
Message-id: 1476395910-8697-9-git-send-email-jsnow@redhat.com
Signed-off-by: default avatarMax Reitz <mreitz@redhat.com>
parent 8258888e

block/dirty-bitmap.c

+37 −0
Original line number Diff line number Diff line
@@ -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)

{

include/block/dirty-bitmap.h

+14 −0
Original line number Diff line number Diff line
@@ -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