Re: [PATCH] qcow2: Fix alignment checks in encrypted images

["Daniel P. Berrangé" <berrange@redhat.com>]

On Thu, Feb 13, 2020 at 06:16:46PM +0100, Alberto Garcia wrote:
> I/O requests to encrypted media should be aligned to the sector size
> used by the underlying encryption method, not to BDRV_SECTOR_SIZE.
> Fortunately this doesn't break anything at the moment because
> both existing QCRYPTO_BLOCK_*_SECTOR_SIZE have the same value as
> BDRV_SECTOR_SIZE.
> 
> The checks in qcow2_co_preadv_encrypted() are also unnecessary because
> they are repeated immediately afterwards in qcow2_co_encdec().
> 
> Signed-off-by: Alberto Garcia <berto@igalia.com>
> ---
>  block/qcow2-threads.c | 12 ++++++++----
>  block/qcow2.c         |  2 --
>  2 files changed, 8 insertions(+), 6 deletions(-)

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>


Regards,
Daniel
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