[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-block] [Qemu-devel] [PATCH v2 24/32] qcow2: Update qcow2_updat
Re: [Qemu-block] [Qemu-devel] [PATCH v2 24/32] qcow2: Update qcow2_update_snapshot_refcount() to support L2 slices
Tue, 16 Jan 2018 17:00:59 -0600
Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.5.2
On 12/15/2017 06:53 AM, Alberto Garcia wrote:
> qcow2_update_snapshot_refcount() increases the refcount of all
> clusters of a given snapshot. In order to do that it needs to load all
> its L2 tables and iterate over their entries. Since we'll be loading
> L2 slices instead of full tables we need to add an extra loop that
> iterates over all slices of each L2 table.
> This function doesn't need any additional changes so apart from that
> this patch simply updates the variable name from l2_table to l2_slice.
> Signed-off-by: Alberto Garcia <address@hidden>
> block/qcow2-refcount.c | 150
> 1 file changed, 80 insertions(+), 70 deletions(-)
> - l2_table = NULL;
> + l2_slice = NULL;
> l1_table = NULL;
> l1_size2 = l1_size * sizeof(uint64_t);
> + slice_size = s->l2_slice_size * sizeof(uint64_t);
Again, better naming on s->l2_slice_size in an earlier patch may make
this more readable, at a cost of slight rebase churn.
The diff looks hideous, but that's thanks to indentation changes.
Reviewed-by: Eric Blake <address@hidden>
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3266
Virtualization: qemu.org | libvirt.org
Description: OpenPGP digital signature
- Re: [Qemu-block] [Qemu-devel] [PATCH v2 24/32] qcow2: Update qcow2_update_snapshot_refcount() to support L2 slices,
Eric Blake <=