diff options
| author | Benoît Canet <benoit.canet@irqsave.net> | 2014-06-27 18:25:25 +0200 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2014-06-27 20:00:00 +0200 |
| commit | 09158f00e0fdb506dcbf36f67c615b7f6c604c5a (patch) | |
| tree | f7a4f03efed4ae74d92c1dc3d1b9d4bef51a6780 /include | |
| parent | 823c686356e6758bacb46d3a316b841536d6d707 (diff) | |
block: Add replaces argument to drive-mirror
drive-mirror will bdrv_swap the new BDS named node-name with the one
pointed by replaces when the mirroring is finished.
Signed-off-by: Benoit Canet <benoit@irqsave.net>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/block/block.h | 4 | ||||
| -rw-r--r-- | include/block/block_int.h | 3 |
2 files changed, 7 insertions, 0 deletions
diff --git a/include/block/block.h b/include/block/block.h index d0baf4fb83..b53833d1d6 100644 --- a/include/block/block.h +++ b/include/block/block.h @@ -175,6 +175,7 @@ typedef enum BlockOpType { BLOCK_OP_TYPE_MIRROR, BLOCK_OP_TYPE_RESIZE, BLOCK_OP_TYPE_STREAM, + BLOCK_OP_TYPE_REPLACE, BLOCK_OP_TYPE_MAX, } BlockOpType; @@ -314,6 +315,9 @@ bool bdrv_recurse_is_first_non_filter(BlockDriverState *bs, BlockDriverState *candidate); bool bdrv_is_first_non_filter(BlockDriverState *candidate); +/* check if a named node can be replaced when doing drive-mirror */ +BlockDriverState *check_to_replace_node(const char *node_name, Error **errp); + /* async block I/O */ typedef void BlockDriverDirtyHandler(BlockDriverState *bs, int64_t sector, int sector_num); diff --git a/include/block/block_int.h b/include/block/block_int.h index 135c5dc0e9..53e77cf11e 100644 --- a/include/block/block_int.h +++ b/include/block/block_int.h @@ -489,6 +489,8 @@ void commit_active_start(BlockDriverState *bs, BlockDriverState *base, * mirror_start: * @bs: Block device to operate on. * @target: Block device to write to. + * @replaces: Block graph node name to replace once the mirror is done. Can + * only be used when full mirroring is selected. * @speed: The maximum speed, in bytes per second, or 0 for unlimited. * @granularity: The chosen granularity for the dirty bitmap. * @buf_size: The amount of data that can be in flight at one time. @@ -505,6 +507,7 @@ void commit_active_start(BlockDriverState *bs, BlockDriverState *base, * @bs will be switched to read from @target. */ void mirror_start(BlockDriverState *bs, BlockDriverState *target, + const char *replaces, int64_t speed, int64_t granularity, int64_t buf_size, MirrorSyncMode mode, BlockdevOnError on_source_error, BlockdevOnError on_target_error, |