On 07/07/2016 03:35 AM, Denis V. Lunev wrote: > All nowadays .bdrv_co_write_zeroes callbacks could perfectly work even
Grammar: All .bdrv_co_write_zeroes callbacks nowadays work perfectly even... > with backing store attached. If future new callbacks will unable to do s/will/would be/ > that - they have a chance to block this in bdrv_get_info(). > > Signed-off-by: Denis V. Lunev <[email protected]> > CC: Stefan Hajnoczi <[email protected]> > CC: Fam Zheng <[email protected]> > CC: Kevin Wolf <[email protected]> > CC: Max Reitz <[email protected]> > CC: Jeff Cody <[email protected]> > CC: Eric Blake <[email protected]> > --- > block.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/block.c b/block.c > index 823ff1d..c2fb8bd 100644 > --- a/block.c > +++ b/block.c > @@ -2834,7 +2834,7 @@ bool bdrv_can_write_zeroes_with_unmap(BlockDriverState > *bs) > { > BlockDriverInfo bdi; > > - if (bs->backing || !(bs->open_flags & BDRV_O_UNMAP)) { > + if (!(bs->open_flags & BDRV_O_UNMAP)) { > return false; > } > > Reviewed-by: Eric Blake <[email protected]> -- Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org
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