In some cases, we want to connect/disconnect the remote target when we need, not in bdrv_open()/bdrv_close().
Signed-off-by: Wen Congyang <we...@cn.fujitsu.com> Signed-off-by: zhanghailiang <zhang.zhanghaili...@huawei.com> Signed-off-by: Gonglei <arei.gong...@huawei.com> --- block.c | 24 ++++++++++++++++++++++++ include/block/block.h | 3 +++ include/block/block_int.h | 3 +++ 3 files changed, 30 insertions(+) diff --git a/block.c b/block.c index 1b362ba..9a8ef9f 100644 --- a/block.c +++ b/block.c @@ -4191,3 +4191,27 @@ BlockAcctStats *bdrv_get_stats(BlockDriverState *bs) { return &bs->stats; } + +void bdrv_connect(BlockDriverState *bs, Error **errp) +{ + BlockDriver *drv = bs->drv; + + if (drv && drv->bdrv_connect) { + drv->bdrv_connect(bs, errp); + } else if (bs->file) { + bdrv_connect(bs->file, errp); + } else { + error_setg(errp, "this feature or command is not currently supported"); + } +} + +void bdrv_disconnect(BlockDriverState *bs) +{ + BlockDriver *drv = bs->drv; + + if (drv && drv->bdrv_disconnect) { + drv->bdrv_disconnect(bs); + } else if (bs->file) { + bdrv_disconnect(bs->file); + } +} diff --git a/include/block/block.h b/include/block/block.h index 006c941..e479a34 100644 --- a/include/block/block.h +++ b/include/block/block.h @@ -592,4 +592,7 @@ void bdrv_flush_io_queue(BlockDriverState *bs); BlockAcctStats *bdrv_get_stats(BlockDriverState *bs); +void bdrv_connect(BlockDriverState *bs, Error **errp); +void bdrv_disconnect(BlockDriverState *bs); + #endif diff --git a/include/block/block_int.h b/include/block/block_int.h index 49ca826..da29fa7 100644 --- a/include/block/block_int.h +++ b/include/block/block_int.h @@ -290,6 +290,9 @@ struct BlockDriver { */ int (*bdrv_probe_geometry)(BlockDriverState *bs, HDGeometry *geo); + void (*bdrv_connect)(BlockDriverState *bs, Error **errp); + void (*bdrv_disconnect)(BlockDriverState *bs); + QLIST_ENTRY(BlockDriver) list; }; -- 2.1.0