As speed is an optional parameter for the QMP block-commit command, it should be set to 0 if not given (as it is undefined if has_speed is false), that is, the speed should not be limited.
Signed-off-by: Max Reitz <mre...@redhat.com> Reviewed-by: Eric Blake <ebl...@redhat.com> --- This patch was previously part of the "qemu-img: Implement commit like QMP" series, but as this is a general bugfix, it has been separated. --- blockdev.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/blockdev.c b/blockdev.c index c3422a1..5dd01ea 100644 --- a/blockdev.c +++ b/blockdev.c @@ -1876,6 +1876,10 @@ void qmp_block_commit(const char *device, */ BlockdevOnError on_error = BLOCKDEV_ON_ERROR_REPORT; + if (!has_speed) { + speed = 0; + } + /* drain all i/o before commits */ bdrv_drain_all(); -- 1.9.1