On 06.09.18 11:37, Alberto Garcia wrote: > 'detect-zeroes' is one of the basic BlockdevOptions available for all > drivers, but it's not handled by bdrv_reopen_prepare(), so any attempt > to change it results in an error: > > (qemu) qemu-io virtio0 "reopen -o detect-zeroes=on" > Cannot change the option 'detect-zeroes' > > Since there's no reason why we shouldn't allow changing it and the > implementation is simple let's just do it. > > Signed-off-by: Alberto Garcia <be...@igalia.com> > --- > block.c | 64 > ++++++++++++++++++++++++++++++++------------------- > include/block/block.h | 1 + > 2 files changed, 41 insertions(+), 24 deletions(-)
Reviewed-by: Max Reitz <mre...@redhat.com>
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