diff options
| author | Paolo Bonzini <pbonzini@redhat.com> | 2013-01-21 17:09:41 +0100 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2013-01-25 18:18:33 +0100 |
| commit | 8f0720ecbc3677e13fc7531588fc3831cc972ee4 (patch) | |
| tree | e1ab1af2393c1a360b7cfbc34caf1d7f5091a742 /include/block/block.h | |
| parent | e7c033c3fa22a1e42d9ba57fed6ddecfbce3a01c (diff) | |
block: implement dirty bitmap using HBitmap
This actually uses the dirty bitmap in the block layer, and converts
mirroring to use an HBitmapIter.
Reviewed-by: Laszlo Ersek <lersek@redhat.com> (except block/mirror.c parts)
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'include/block/block.h')
| -rw-r--r-- | include/block/block.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/include/block/block.h b/include/block/block.h index ffd193637d..678fc60dc1 100644 --- a/include/block/block.h +++ b/include/block/block.h @@ -351,13 +351,15 @@ void bdrv_set_buffer_alignment(BlockDriverState *bs, int align); void *qemu_blockalign(BlockDriverState *bs, size_t size); bool bdrv_qiov_is_aligned(BlockDriverState *bs, QEMUIOVector *qiov); -#define BDRV_SECTORS_PER_DIRTY_CHUNK 2048 +#define BDRV_SECTORS_PER_DIRTY_CHUNK (1 << BDRV_LOG_SECTORS_PER_DIRTY_CHUNK) +#define BDRV_LOG_SECTORS_PER_DIRTY_CHUNK 11 +struct HBitmapIter; void bdrv_set_dirty_tracking(BlockDriverState *bs, int enable); int bdrv_get_dirty(BlockDriverState *bs, int64_t sector); void bdrv_set_dirty(BlockDriverState *bs, int64_t cur_sector, int nr_sectors); void bdrv_reset_dirty(BlockDriverState *bs, int64_t cur_sector, int nr_sectors); -int64_t bdrv_get_next_dirty(BlockDriverState *bs, int64_t sector); +void bdrv_dirty_iter_init(BlockDriverState *bs, struct HBitmapIter *hbi); int64_t bdrv_get_dirty_count(BlockDriverState *bs); void bdrv_enable_copy_on_read(BlockDriverState *bs); |