Re: [Qemu-devel] [PATCH v3 1/5] block: split write_zeroes always

2016-05-26 Thread Fam Zheng
On Wed, 05/25 21:48, Eric Blake wrote: > From: "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

[Qemu-devel] [PATCH v3 1/5] block: split write_zeroes always

2016-05-25 Thread Eric Blake
From: "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