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| author | Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> | 2017-06-28 15:05:06 +0300 |
|---|---|---|
| committer | Max Reitz <mreitz@redhat.com> | 2017-07-11 17:44:57 +0200 |
| commit | 6bdc8b719a1617ec5ddfb13e78054df22fa12f84 (patch) | |
| tree | 1cca120356705de5416ee6e24498692bc50b4b37 /include | |
| parent | ba06ff1a5c4d080cc8e88ec2d7c3472c20d33f1b (diff) | |
| download | qemu-6bdc8b719a1617ec5ddfb13e78054df22fa12f84.zip qemu-6bdc8b719a1617ec5ddfb13e78054df22fa12f84.tar.gz qemu-6bdc8b719a1617ec5ddfb13e78054df22fa12f84.tar.bz2 | |
block/dirty-bitmap: add deserialize_ones func
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>
Diffstat (limited to 'include')
| -rw-r--r-- | include/block/dirty-bitmap.h | 3 | ||||
| -rw-r--r-- | include/qemu/hbitmap.h | 15 |
2 files changed, 18 insertions, 0 deletions
diff --git a/include/block/dirty-bitmap.h b/include/block/dirty-bitmap.h index ab89f08..05451c7 100644 --- a/include/block/dirty-bitmap.h +++ b/include/block/dirty-bitmap.h @@ -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. */ diff --git a/include/qemu/hbitmap.h b/include/qemu/hbitmap.h index 6b04391..b52304a 100644 --- a/include/qemu/hbitmap.h +++ b/include/qemu/hbitmap.h @@ -229,6 +229,21 @@ void hbitmap_deserialize_zeroes(HBitmap *hb, uint64_t start, uint64_t count, bool finish); /** + * hbitmap_deserialize_ones + * @hb: HBitmap to operate on. + * @start: First bit to restore. + * @count: Number of bits to restore. + * @finish: Whether to call hbitmap_deserialize_finish automatically. + * + * Fills the bitmap with ones. + * + * If @finish is false, caller must call hbitmap_serialize_finish before using + * the bitmap. + */ +void hbitmap_deserialize_ones(HBitmap *hb, uint64_t start, uint64_t count, + bool finish); + +/** * hbitmap_deserialize_finish * @hb: HBitmap to operate on. * |