On Thu 28 May 2020 09:11:07 PM CEST, Eric Blake wrote:
>> I think the problem also exists in the current code (without my
>> patches). If you zeroize 10 clusters and the last one is compressed
>> you have to repeat the request after having zeroized 9 clusters.
>
> Hmm. In the pre-patch code,
On 5/28/20 10:04 AM, Alberto Garcia wrote:
On Wed 27 May 2020 07:58:10 PM CEST, Eric Blake wrote:
There is just one thing to take into account for a possible future
improvement: compressed clusters cannot be partially zeroized so
zero_l2_subclusters() on the head or the tail can return
On Wed 27 May 2020 07:58:10 PM CEST, Eric Blake wrote:
>> There is just one thing to take into account for a possible future
>> improvement: compressed clusters cannot be partially zeroized so
>> zero_l2_subclusters() on the head or the tail can return -ENOTSUP.
>> This makes the caller repeat the
On 5/25/20 1:08 PM, Alberto Garcia wrote:
This works now at the subcluster level and pwrite_zeroes_alignment is
updated accordingly.
qcow2_cluster_zeroize() is turned into qcow2_subcluster_zeroize() with
the following changes:
- The request can now be subcluster-aligned.
- The
This works now at the subcluster level and pwrite_zeroes_alignment is
updated accordingly.
qcow2_cluster_zeroize() is turned into qcow2_subcluster_zeroize() with
the following changes:
- The request can now be subcluster-aligned.
- The cluster-aligned body of the request is still zeroized
