4f43e9535b
Add special state, when qmp operations on the bitmap are disabled. It is needed during bitmap migration. "Frozen" state is not appropriate here, because it looks like bitmap is unchanged. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Reviewed-by: John Snow <jsnow@redhat.com> Message-id: 20180207155837.92351-5-vsementsov@virtuozzo.com Signed-off-by: John Snow <jsnow@redhat.com>
104 lines
5.8 KiB
C
104 lines
5.8 KiB
C
#ifndef BLOCK_DIRTY_BITMAP_H
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#define BLOCK_DIRTY_BITMAP_H
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#include "qemu-common.h"
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#include "qapi/qapi-types-block-core.h"
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#include "qemu/hbitmap.h"
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BdrvDirtyBitmap *bdrv_create_dirty_bitmap(BlockDriverState *bs,
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uint32_t granularity,
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const char *name,
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Error **errp);
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void bdrv_create_meta_dirty_bitmap(BdrvDirtyBitmap *bitmap,
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int chunk_size);
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void bdrv_release_meta_dirty_bitmap(BdrvDirtyBitmap *bitmap);
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int bdrv_dirty_bitmap_create_successor(BlockDriverState *bs,
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BdrvDirtyBitmap *bitmap,
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Error **errp);
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BdrvDirtyBitmap *bdrv_dirty_bitmap_abdicate(BlockDriverState *bs,
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BdrvDirtyBitmap *bitmap,
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Error **errp);
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BdrvDirtyBitmap *bdrv_reclaim_dirty_bitmap(BlockDriverState *bs,
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BdrvDirtyBitmap *bitmap,
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Error **errp);
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void bdrv_dirty_bitmap_enable_successor(BdrvDirtyBitmap *bitmap);
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BdrvDirtyBitmap *bdrv_find_dirty_bitmap(BlockDriverState *bs,
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const char *name);
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void bdrv_dirty_bitmap_make_anon(BdrvDirtyBitmap *bitmap);
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void bdrv_release_dirty_bitmap(BlockDriverState *bs, BdrvDirtyBitmap *bitmap);
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void bdrv_release_named_dirty_bitmaps(BlockDriverState *bs);
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void bdrv_release_persistent_dirty_bitmaps(BlockDriverState *bs);
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void bdrv_remove_persistent_dirty_bitmap(BlockDriverState *bs,
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const char *name,
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Error **errp);
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void bdrv_disable_dirty_bitmap(BdrvDirtyBitmap *bitmap);
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void bdrv_enable_dirty_bitmap(BdrvDirtyBitmap *bitmap);
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BlockDirtyInfoList *bdrv_query_dirty_bitmaps(BlockDriverState *bs);
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uint32_t bdrv_get_default_bitmap_granularity(BlockDriverState *bs);
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uint32_t bdrv_dirty_bitmap_granularity(const BdrvDirtyBitmap *bitmap);
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bool bdrv_dirty_bitmap_enabled(BdrvDirtyBitmap *bitmap);
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bool bdrv_dirty_bitmap_frozen(BdrvDirtyBitmap *bitmap);
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const char *bdrv_dirty_bitmap_name(const BdrvDirtyBitmap *bitmap);
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int64_t bdrv_dirty_bitmap_size(const BdrvDirtyBitmap *bitmap);
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DirtyBitmapStatus bdrv_dirty_bitmap_status(BdrvDirtyBitmap *bitmap);
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void bdrv_set_dirty_bitmap(BdrvDirtyBitmap *bitmap,
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int64_t offset, int64_t bytes);
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void bdrv_reset_dirty_bitmap(BdrvDirtyBitmap *bitmap,
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int64_t offset, int64_t bytes);
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BdrvDirtyBitmapIter *bdrv_dirty_meta_iter_new(BdrvDirtyBitmap *bitmap);
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BdrvDirtyBitmapIter *bdrv_dirty_iter_new(BdrvDirtyBitmap *bitmap);
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void bdrv_dirty_iter_free(BdrvDirtyBitmapIter *iter);
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uint64_t bdrv_dirty_bitmap_serialization_size(const BdrvDirtyBitmap *bitmap,
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uint64_t offset, uint64_t bytes);
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uint64_t bdrv_dirty_bitmap_serialization_align(const BdrvDirtyBitmap *bitmap);
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void bdrv_dirty_bitmap_serialize_part(const BdrvDirtyBitmap *bitmap,
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uint8_t *buf, uint64_t offset,
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uint64_t bytes);
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void bdrv_dirty_bitmap_deserialize_part(BdrvDirtyBitmap *bitmap,
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uint8_t *buf, uint64_t offset,
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uint64_t bytes, bool finish);
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void bdrv_dirty_bitmap_deserialize_zeroes(BdrvDirtyBitmap *bitmap,
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uint64_t offset, uint64_t bytes,
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bool finish);
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void bdrv_dirty_bitmap_deserialize_ones(BdrvDirtyBitmap *bitmap,
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uint64_t offset, uint64_t bytes,
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bool finish);
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void bdrv_dirty_bitmap_deserialize_finish(BdrvDirtyBitmap *bitmap);
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void bdrv_dirty_bitmap_set_readonly(BdrvDirtyBitmap *bitmap, bool value);
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void bdrv_dirty_bitmap_set_persistance(BdrvDirtyBitmap *bitmap,
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bool persistent);
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void bdrv_dirty_bitmap_set_qmp_locked(BdrvDirtyBitmap *bitmap, bool qmp_locked);
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/* Functions that require manual locking. */
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void bdrv_dirty_bitmap_lock(BdrvDirtyBitmap *bitmap);
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void bdrv_dirty_bitmap_unlock(BdrvDirtyBitmap *bitmap);
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bool bdrv_get_dirty_locked(BlockDriverState *bs, BdrvDirtyBitmap *bitmap,
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int64_t offset);
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void bdrv_set_dirty_bitmap_locked(BdrvDirtyBitmap *bitmap,
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int64_t offset, int64_t bytes);
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void bdrv_reset_dirty_bitmap_locked(BdrvDirtyBitmap *bitmap,
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int64_t offset, int64_t bytes);
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int64_t bdrv_dirty_iter_next(BdrvDirtyBitmapIter *iter);
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void bdrv_set_dirty_iter(BdrvDirtyBitmapIter *hbi, int64_t offset);
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int64_t bdrv_get_dirty_count(BdrvDirtyBitmap *bitmap);
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int64_t bdrv_get_meta_dirty_count(BdrvDirtyBitmap *bitmap);
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void bdrv_dirty_bitmap_truncate(BlockDriverState *bs, int64_t bytes);
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bool bdrv_dirty_bitmap_readonly(const BdrvDirtyBitmap *bitmap);
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bool bdrv_has_readonly_bitmaps(BlockDriverState *bs);
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bool bdrv_dirty_bitmap_get_autoload(const BdrvDirtyBitmap *bitmap);
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bool bdrv_dirty_bitmap_get_persistance(BdrvDirtyBitmap *bitmap);
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bool bdrv_dirty_bitmap_qmp_locked(BdrvDirtyBitmap *bitmap);
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bool bdrv_has_changed_persistent_bitmaps(BlockDriverState *bs);
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BdrvDirtyBitmap *bdrv_dirty_bitmap_next(BlockDriverState *bs,
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BdrvDirtyBitmap *bitmap);
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char *bdrv_dirty_bitmap_sha256(const BdrvDirtyBitmap *bitmap, Error **errp);
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int64_t bdrv_dirty_bitmap_next_zero(BdrvDirtyBitmap *bitmap, uint64_t start);
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BdrvDirtyBitmap *bdrv_reclaim_dirty_bitmap_locked(BlockDriverState *bs,
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BdrvDirtyBitmap *bitmap,
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Error **errp);
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#endif
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