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block/dirty-bitmap: add deserialize_ones func

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Add bdrv_dirty_bitmap_deserialize_ones() function, which is needed for
qcow2 bitmap loading, to handle unallocated bitmap parts, marked as
all-ones.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 20170628120530.31251-7-vsementsov@virtuozzo.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
This commit is contained in:
Vladimir Sementsov-Ogievskiy
2017-07-11 17:44:57 +02:00
committed by Max Reitz
parent ba06ff1a5c
commit 6bdc8b719a
4 changed files with 42 additions and 0 deletions
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include/block/dirty-bitmap.h
+3
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@@ -66,6 +66,9 @@ void bdrv_dirty_bitmap_deserialize_part(BdrvDirtyBitmap *bitmap,
void bdrv_dirty_bitmap_deserialize_zeroes(BdrvDirtyBitmap *bitmap,
uint64_t start, uint64_t count,
bool finish);
void bdrv_dirty_bitmap_deserialize_ones(BdrvDirtyBitmap *bitmap,
uint64_t start, uint64_t count,
bool finish);
void bdrv_dirty_bitmap_deserialize_finish(BdrvDirtyBitmap *bitmap);
/* Functions that require manual locking. */