Am 06.03.2019 um 19:11 hat Alberto Garcia geschrieben: > If we reopen a BlockDriverState and there is an option that is present > in bs->options but missing from the new set of options then we have to > return an error unless the driver is able to reset it to its default > value. > > This patch adds a new 'mutable_opts' field to BlockDriver. This is > a list of runtime options that can be modified during reopen. If an > option in this list is unspecified on reopen then it must be reset (or > return an error). > > Signed-off-by: Alberto Garcia <be...@igalia.com> > --- > block/file-posix.c | 6 ++++++ > block/qcow2.c | 25 +++++++++++++++++++++++++ > block/raw-format.c | 3 +++ > include/block/block_int.h | 8 ++++++++ > 4 files changed, 42 insertions(+)
Two more drivers seem to be able to change options: gluster (debug and logfile) and throttle (throttle-group). Kevin
