diff options
| author | Fam Zheng | 2016-10-13 23:58:24 +0200 |
|---|---|---|
| committer | Max Reitz | 2016-10-24 17:56:07 +0200 |
| commit | fb933437de327a9a322d4c2473d0c23aa8d9a267 (patch) | |
| tree | 564f091196507d82b75c498e78e8cf4ac9ed7dc2 /include | |
| parent | tests: Add test code for meta bitmap (diff) | |
| download | qemu-fb933437de327a9a322d4c2473d0c23aa8d9a267.tar.gz qemu-fb933437de327a9a322d4c2473d0c23aa8d9a267.tar.xz qemu-fb933437de327a9a322d4c2473d0c23aa8d9a267.zip | |
block: Support meta dirty bitmap
The added group of operations enables tracking of the changed bits in
the dirty bitmap.
Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1476395910-8697-5-git-send-email-jsnow@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/block/dirty-bitmap.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/block/dirty-bitmap.h b/include/block/dirty-bitmap.h index 0ef927d6ce..69c500ba2f 100644 --- a/include/block/dirty-bitmap.h +++ b/include/block/dirty-bitmap.h @@ -8,6 +8,9 @@ BdrvDirtyBitmap *bdrv_create_dirty_bitmap(BlockDriverState *bs, uint32_t granularity, const char *name, Error **errp); +void bdrv_create_meta_dirty_bitmap(BdrvDirtyBitmap *bitmap, + int chunk_size); +void bdrv_release_meta_dirty_bitmap(BdrvDirtyBitmap *bitmap); int bdrv_dirty_bitmap_create_successor(BlockDriverState *bs, BdrvDirtyBitmap *bitmap, Error **errp); @@ -36,6 +39,12 @@ void bdrv_set_dirty_bitmap(BdrvDirtyBitmap *bitmap, int64_t cur_sector, int64_t nr_sectors); void bdrv_reset_dirty_bitmap(BdrvDirtyBitmap *bitmap, int64_t cur_sector, int64_t nr_sectors); +int bdrv_dirty_bitmap_get_meta(BlockDriverState *bs, + BdrvDirtyBitmap *bitmap, int64_t sector, + int nb_sectors); +void bdrv_dirty_bitmap_reset_meta(BlockDriverState *bs, + BdrvDirtyBitmap *bitmap, int64_t sector, + int nb_sectors); BdrvDirtyBitmapIter *bdrv_dirty_iter_new(BdrvDirtyBitmap *bitmap, uint64_t first_sector); void bdrv_dirty_iter_free(BdrvDirtyBitmapIter *iter); |