On 01/26/2018 08:59 AM, Alberto Garcia wrote: > This patch updates l2_allocate() to support the qcow2 cache returning > L2 slices instead of full L2 tables. > > The old code simply gets an L2 table from the cache and initializes it > with zeroes or with the contents of an existing table. With a cache > that returns slices instead of tables the idea remains the same, but > the code must now iterate over all the slices that are contained in an > L2 table. > > Since now we're operating with slices the function can no longer > return the newly-allocated table, so it's up to the caller to retrieve > the appropriate L2 slice after calling l2_allocate() (note that with > this patch the caller is still loading full L2 tables, but we'll deal > with that in a separate patch). > > Signed-off-by: Alberto Garcia <be...@igalia.com> > --- > block/qcow2-cluster.c | 56 > +++++++++++++++++++++++++++++++-------------------- > 1 file changed, 34 insertions(+), 22 deletions(-) >
> > - /* if there was an old l2 table, read it from the disk */ > + /* if there was an old l2 table, read an slice from the disk */ s/an /a / Reviewed-by: Eric Blake <ebl...@redhat.com> -- Eric Blake, Principal Software Engineer Red Hat, Inc. +1-919-301-3266 Virtualization: qemu.org | libvirt.org
signature.asc
Description: OpenPGP digital signature
