On 05.05.2016 05:42, Eric Blake wrote: > Make it easier to control whether the BDRV_REQ_MAY_UNMAP flag > can be passed through a write_zeroes command, by adding the '-u' > flag to qemu-io 'write -z' and 'aio_write -z'. To be useful, > the device has to be opened with 'qemu-io -d unmap' (or the > just-added 'open -u' subcommand). > > Signed-off-by: Eric Blake <ebl...@redhat.com> > --- > qemu-io-cmds.c | 24 +++++++++++++++++++++--- > 1 file changed, 21 insertions(+), 3 deletions(-)
Reviewed-by: Max Reitz <mre...@redhat.com>
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