mirror of
https://github.com/xemu-project/xemu.git
synced 2024-11-24 12:09:58 +00:00
e0d7f73e63
Some of the callers were already scaling bytes to sectors; others can be easily converted to pass byte offsets, all in our shift towards a consistent byte interface everywhere. Making the change will also make it easier to write the hold-out callers to use byte rather than sectors for their iterations; it also makes it easier for a future dirty-bitmap patch to offload scaling over to the internal hbitmap. Although all callers happen to pass sector-aligned values, make the internal scaling robust to any sub-sector requests. Signed-off-by: Eric Blake <eblake@redhat.com> Reviewed-by: John Snow <jsnow@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Fam Zheng <famz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
96 lines
5.3 KiB
C
96 lines
5.3 KiB
C
#ifndef BLOCK_DIRTY_BITMAP_H
|
|
#define BLOCK_DIRTY_BITMAP_H
|
|
|
|
#include "qemu-common.h"
|
|
#include "qemu/hbitmap.h"
|
|
|
|
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);
|
|
BdrvDirtyBitmap *bdrv_dirty_bitmap_abdicate(BlockDriverState *bs,
|
|
BdrvDirtyBitmap *bitmap,
|
|
Error **errp);
|
|
BdrvDirtyBitmap *bdrv_reclaim_dirty_bitmap(BlockDriverState *bs,
|
|
BdrvDirtyBitmap *bitmap,
|
|
Error **errp);
|
|
BdrvDirtyBitmap *bdrv_find_dirty_bitmap(BlockDriverState *bs,
|
|
const char *name);
|
|
void bdrv_dirty_bitmap_make_anon(BdrvDirtyBitmap *bitmap);
|
|
void bdrv_release_dirty_bitmap(BlockDriverState *bs, BdrvDirtyBitmap *bitmap);
|
|
void bdrv_release_named_dirty_bitmaps(BlockDriverState *bs);
|
|
void bdrv_release_persistent_dirty_bitmaps(BlockDriverState *bs);
|
|
void bdrv_remove_persistent_dirty_bitmap(BlockDriverState *bs,
|
|
const char *name,
|
|
Error **errp);
|
|
void bdrv_disable_dirty_bitmap(BdrvDirtyBitmap *bitmap);
|
|
void bdrv_enable_dirty_bitmap(BdrvDirtyBitmap *bitmap);
|
|
BlockDirtyInfoList *bdrv_query_dirty_bitmaps(BlockDriverState *bs);
|
|
uint32_t bdrv_get_default_bitmap_granularity(BlockDriverState *bs);
|
|
uint32_t bdrv_dirty_bitmap_granularity(const BdrvDirtyBitmap *bitmap);
|
|
bool bdrv_dirty_bitmap_enabled(BdrvDirtyBitmap *bitmap);
|
|
bool bdrv_dirty_bitmap_frozen(BdrvDirtyBitmap *bitmap);
|
|
const char *bdrv_dirty_bitmap_name(const BdrvDirtyBitmap *bitmap);
|
|
int64_t bdrv_dirty_bitmap_size(const BdrvDirtyBitmap *bitmap);
|
|
DirtyBitmapStatus bdrv_dirty_bitmap_status(BdrvDirtyBitmap *bitmap);
|
|
void bdrv_set_dirty_bitmap(BdrvDirtyBitmap *bitmap,
|
|
int64_t offset, int64_t bytes);
|
|
void bdrv_reset_dirty_bitmap(BdrvDirtyBitmap *bitmap,
|
|
int64_t offset, int64_t bytes);
|
|
BdrvDirtyBitmapIter *bdrv_dirty_meta_iter_new(BdrvDirtyBitmap *bitmap);
|
|
BdrvDirtyBitmapIter *bdrv_dirty_iter_new(BdrvDirtyBitmap *bitmap);
|
|
void bdrv_dirty_iter_free(BdrvDirtyBitmapIter *iter);
|
|
|
|
uint64_t bdrv_dirty_bitmap_serialization_size(const BdrvDirtyBitmap *bitmap,
|
|
uint64_t offset, uint64_t bytes);
|
|
uint64_t bdrv_dirty_bitmap_serialization_align(const BdrvDirtyBitmap *bitmap);
|
|
void bdrv_dirty_bitmap_serialize_part(const BdrvDirtyBitmap *bitmap,
|
|
uint8_t *buf, uint64_t offset,
|
|
uint64_t bytes);
|
|
void bdrv_dirty_bitmap_deserialize_part(BdrvDirtyBitmap *bitmap,
|
|
uint8_t *buf, uint64_t offset,
|
|
uint64_t bytes, bool finish);
|
|
void bdrv_dirty_bitmap_deserialize_zeroes(BdrvDirtyBitmap *bitmap,
|
|
uint64_t offset, uint64_t bytes,
|
|
bool finish);
|
|
void bdrv_dirty_bitmap_deserialize_ones(BdrvDirtyBitmap *bitmap,
|
|
uint64_t offset, uint64_t bytes,
|
|
bool finish);
|
|
void bdrv_dirty_bitmap_deserialize_finish(BdrvDirtyBitmap *bitmap);
|
|
|
|
void bdrv_dirty_bitmap_set_readonly(BdrvDirtyBitmap *bitmap, bool value);
|
|
void bdrv_dirty_bitmap_set_autoload(BdrvDirtyBitmap *bitmap, bool autoload);
|
|
void bdrv_dirty_bitmap_set_persistance(BdrvDirtyBitmap *bitmap,
|
|
bool persistent);
|
|
|
|
/* Functions that require manual locking. */
|
|
void bdrv_dirty_bitmap_lock(BdrvDirtyBitmap *bitmap);
|
|
void bdrv_dirty_bitmap_unlock(BdrvDirtyBitmap *bitmap);
|
|
bool bdrv_get_dirty_locked(BlockDriverState *bs, BdrvDirtyBitmap *bitmap,
|
|
int64_t offset);
|
|
void bdrv_set_dirty_bitmap_locked(BdrvDirtyBitmap *bitmap,
|
|
int64_t offset, int64_t bytes);
|
|
void bdrv_reset_dirty_bitmap_locked(BdrvDirtyBitmap *bitmap,
|
|
int64_t offset, int64_t bytes);
|
|
int64_t bdrv_dirty_iter_next(BdrvDirtyBitmapIter *iter);
|
|
void bdrv_set_dirty_iter(BdrvDirtyBitmapIter *hbi, int64_t offset);
|
|
int64_t bdrv_get_dirty_count(BdrvDirtyBitmap *bitmap);
|
|
int64_t bdrv_get_meta_dirty_count(BdrvDirtyBitmap *bitmap);
|
|
void bdrv_dirty_bitmap_truncate(BlockDriverState *bs, int64_t bytes);
|
|
bool bdrv_dirty_bitmap_readonly(const BdrvDirtyBitmap *bitmap);
|
|
bool bdrv_has_readonly_bitmaps(BlockDriverState *bs);
|
|
bool bdrv_dirty_bitmap_get_autoload(const BdrvDirtyBitmap *bitmap);
|
|
bool bdrv_dirty_bitmap_get_persistance(BdrvDirtyBitmap *bitmap);
|
|
bool bdrv_has_changed_persistent_bitmaps(BlockDriverState *bs);
|
|
BdrvDirtyBitmap *bdrv_dirty_bitmap_next(BlockDriverState *bs,
|
|
BdrvDirtyBitmap *bitmap);
|
|
char *bdrv_dirty_bitmap_sha256(const BdrvDirtyBitmap *bitmap, Error **errp);
|
|
|
|
#endif
|