diff options
| -rw-r--r-- | block/dirty-bitmap.c | 7 | ||||
| -rw-r--r-- | include/block/dirty-bitmap.h | 3 | ||||
| -rw-r--r-- | include/qemu/hbitmap.h | 15 | ||||
| -rw-r--r-- | util/hbitmap.c | 17 |
4 files changed, 42 insertions, 0 deletions
diff --git a/block/dirty-bitmap.c b/block/dirty-bitmap.c index df0110cf9f..f502c45a70 100644 --- a/block/dirty-bitmap.c +++ b/block/dirty-bitmap.c @@ -586,6 +586,13 @@ void bdrv_dirty_bitmap_deserialize_zeroes(BdrvDirtyBitmap *bitmap, hbitmap_deserialize_zeroes(bitmap->bitmap, start, count, finish); } +void bdrv_dirty_bitmap_deserialize_ones(BdrvDirtyBitmap *bitmap, + uint64_t start, uint64_t count, + bool finish) +{ + hbitmap_deserialize_ones(bitmap->bitmap, start, count, finish); +} + void bdrv_dirty_bitmap_deserialize_finish(BdrvDirtyBitmap *bitmap) { hbitmap_deserialize_finish(bitmap->bitmap); diff --git a/include/block/dirty-bitmap.h b/include/block/dirty-bitmap.h index ab89f08e3d..05451c727d 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 6b04391266..b52304ac29 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. * diff --git a/util/hbitmap.c b/util/hbitmap.c index 0b38817505..0c1591a594 100644 --- a/util/hbitmap.c +++ b/util/hbitmap.c @@ -551,6 +551,23 @@ void hbitmap_deserialize_zeroes(HBitmap *hb, uint64_t start, uint64_t count, } } +void hbitmap_deserialize_ones(HBitmap *hb, uint64_t start, uint64_t count, + bool finish) +{ + uint64_t el_count; + unsigned long *first; + + if (!count) { + return; + } + serialization_chunk(hb, start, count, &first, &el_count); + + memset(first, 0xff, el_count * sizeof(unsigned long)); + if (finish) { + hbitmap_deserialize_finish(hb); + } +} + void hbitmap_deserialize_finish(HBitmap *bitmap) { int64_t i, size, prev_size; |