diff options
| author | John Snow <jsnow@redhat.com> | 2015-04-17 19:49:58 -0400 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2015-04-28 15:36:10 +0200 |
| commit | d58d84539784d27c826924a79d9436178b07ff69 (patch) | |
| tree | dfc10d7edcb62f28355eab4d7b6ab3eb9bc0bca6 /include/block | |
| parent | 9bd2b08f27b9c27bb40d73b6466321b8c635086e (diff) | |
qmp: Add support of "dirty-bitmap" sync mode for drive-backup
For "dirty-bitmap" sync mode, the block job will iterate through the
given dirty bitmap to decide if a sector needs backup (backup all the
dirty clusters and skip clean ones), just as allocation conditions of
"top" sync mode.
Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1429314609-29776-11-git-send-email-jsnow@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'include/block')
| -rw-r--r-- | include/block/block.h | 1 | ||||
| -rw-r--r-- | include/block/block_int.h | 2 |
2 files changed, 3 insertions, 0 deletions
diff --git a/include/block/block.h b/include/block/block.h index 1635c227f3..035cf7bb4c 100644 --- a/include/block/block.h +++ b/include/block/block.h @@ -481,6 +481,7 @@ void bdrv_reset_dirty_bitmap(BlockDriverState *bs, BdrvDirtyBitmap *bitmap, int64_t cur_sector, int nr_sectors); void bdrv_dirty_iter_init(BlockDriverState *bs, BdrvDirtyBitmap *bitmap, struct HBitmapIter *hbi); +void bdrv_set_dirty_iter(struct HBitmapIter *hbi, int64_t offset); int64_t bdrv_get_dirty_count(BlockDriverState *bs, BdrvDirtyBitmap *bitmap); void bdrv_enable_copy_on_read(BlockDriverState *bs); diff --git a/include/block/block_int.h b/include/block/block_int.h index fb9e1002ba..e0d5561678 100644 --- a/include/block/block_int.h +++ b/include/block/block_int.h @@ -602,6 +602,7 @@ void mirror_start(BlockDriverState *bs, BlockDriverState *target, * @target: Block device to write to. * @speed: The maximum speed, in bytes per second, or 0 for unlimited. * @sync_mode: What parts of the disk image should be copied to the destination. + * @sync_bitmap: The dirty bitmap if sync_mode is MIRROR_SYNC_MODE_DIRTY_BITMAP. * @on_source_error: The action to take upon error reading from the source. * @on_target_error: The action to take upon error writing to the target. * @cb: Completion function for the job. @@ -612,6 +613,7 @@ void mirror_start(BlockDriverState *bs, BlockDriverState *target, */ void backup_start(BlockDriverState *bs, BlockDriverState *target, int64_t speed, MirrorSyncMode sync_mode, + BdrvDirtyBitmap *sync_bitmap, BlockdevOnError on_source_error, BlockdevOnError on_target_error, BlockCompletionFunc *cb, void *opaque, |