Re: [Qemu-devel] [PATCH 1/5] block: split write_zeroes always

2016-05-25 Thread Eric Blake
On 05/17/2016 10:34 AM, Kevin Wolf wrote: > Am 17.05.2016 um 11:15 hat Denis V. Lunev geschrieben: >> We should split requests even if they are less than write_zeroes_alignment. >> For example we can have the following request: >> offset 62k >> size 4k >> write_zeroes_alignment 64k >> The o

Re: [Qemu-devel] [PATCH 1/5] block: split write_zeroes always

2016-05-17 Thread Kevin Wolf
Am 17.05.2016 um 11:15 hat Denis V. Lunev geschrieben: > We should split requests even if they are less than write_zeroes_alignment. > For example we can have the following request: > offset 62k > size 4k > write_zeroes_alignment 64k > The original code sent 1 request covering 2 qcow2 clust

[Qemu-devel] [PATCH 1/5] block: split write_zeroes always

2016-05-17 Thread Denis V. Lunev
We should split requests even if they are less than write_zeroes_alignment. For example we can have the following request: offset 62k size 4k write_zeroes_alignment 64k The original code sent 1 request covering 2 qcow2 clusters, and resulted in both clusters being allocated. But by splittin