On 03/13/2017 09:39 PM, Fam Zheng wrote: > Signed-off-by: Fam Zheng > --- > qemu-io.c | 28 +++++++++++++++++++++------- > 1 file changed, 21 insertions(+), 7 deletions(-) > > @@ -108,6 +112,7 @@ static void open_help(void) > " -r, -- open file read-only\n" > " -s, -- use snapshot file\n" > " -n, -- disable host cache, short for -t none\n" > +" -U, -- accept unsafe opening of the image even if it's in use by another process\n" Long line (exceeds 80 columns of output); can we shorten it? Maybe -U, allow unsafe reads when another process is writing You did get 'qemu-io -c "help open"' adjusted, but I don't see where you adjusted 'qemu-io --help'. Since both places gained a -U, you still need more documentation. But at least there is no man page to worry about here. -- Eric Blake, Principal Software Engineer Red Hat, Inc. +1-919-301-3266 Virtualization: qemu.org | libvirt.org