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| author | Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> | 2017-06-28 15:05:10 +0300 |
|---|---|---|
| committer | Max Reitz <mreitz@redhat.com> | 2017-07-11 17:44:58 +0200 |
| commit | d6883bc96890dae97757ee8a61aab7f18d9a66de (patch) | |
| tree | 615468c1c9098a4062e888df16f9f4fbebaa3a30 /include | |
| parent | 8bfc932e1eaab86788bb08207d520bd2804422ae (diff) | |
| download | qemu-d6883bc96890dae97757ee8a61aab7f18d9a66de.zip qemu-d6883bc96890dae97757ee8a61aab7f18d9a66de.tar.gz qemu-d6883bc96890dae97757ee8a61aab7f18d9a66de.tar.bz2 | |
block/dirty-bitmap: add readonly field to BdrvDirtyBitmap
It will be needed in following commits for persistent bitmaps.
If bitmap is loaded from read-only storage (and we can't mark it
"in use" in this storage) corresponding BdrvDirtyBitmap should be
read-only.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-id: 20170628120530.31251-11-vsementsov@virtuozzo.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/block/dirty-bitmap.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/block/dirty-bitmap.h b/include/block/dirty-bitmap.h index 05451c7..cb43fa3 100644 --- a/include/block/dirty-bitmap.h +++ b/include/block/dirty-bitmap.h @@ -71,6 +71,8 @@ void bdrv_dirty_bitmap_deserialize_ones(BdrvDirtyBitmap *bitmap, bool finish); void bdrv_dirty_bitmap_deserialize_finish(BdrvDirtyBitmap *bitmap); +void bdrv_dirty_bitmap_set_readonly(BdrvDirtyBitmap *bitmap, bool value); + /* Functions that require manual locking. */ void bdrv_dirty_bitmap_lock(BdrvDirtyBitmap *bitmap); void bdrv_dirty_bitmap_unlock(BdrvDirtyBitmap *bitmap); @@ -85,5 +87,7 @@ void bdrv_set_dirty_iter(BdrvDirtyBitmapIter *hbi, int64_t sector_num); int64_t bdrv_get_dirty_count(BdrvDirtyBitmap *bitmap); int64_t bdrv_get_meta_dirty_count(BdrvDirtyBitmap *bitmap); void bdrv_dirty_bitmap_truncate(BlockDriverState *bs); +bool bdrv_dirty_bitmap_readonly(const BdrvDirtyBitmap *bitmap); +bool bdrv_has_readonly_bitmaps(BlockDriverState *bs); #endif |