On Fri 23 Feb 2018 02:30:14 PM CET, Eric Blake wrote:
>> One possible task for the future is to make 'qemu-img check' verify
>> the sizes of the compressed clusters, by trying to decompress the data
>> and checking that the size stored in the L2 entry is correct.
>
> Indeed, but that means...
>
>>
On 02/23/2018 06:50 AM, Alberto Garcia wrote:
L2 entries for compressed clusters have a field that indicates the
number of sectors used to store the data in the image.
That's however not the size of the compressed data itself, just the
number of sectors where that data is located. The actual
L2 entries for compressed clusters have a field that indicates the
number of sectors used to store the data in the image.
That's however not the size of the compressed data itself, just the
number of sectors where that data is located. The actual data size is
usually not a multiple of the sector
