c6b6e4f79b
scsi-bus: Refactor the code that retries requests scsi-disk: Add support for retry on errors qapi/block-core: Add retry option for error action block-backend: Introduce retry timer block-backend: Add device specific retry callback block-backend: Enable retry action on errors block-backend: Add timeout support for retry block: Add error retry param setting virtio-blk: Refactor the code that processes queued requests virtio-blk: On restart, process queued requests in the proper context virtio_blk: Add support for retry on errors block-backend: Stop retrying when draining block: Add sanity check when setting retry parameters Signed-off-by: Chen Qun<kuhn.chenqun@huawei.com>