[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] [sheepdog] [PATCH v3] sheepdog: selectable object size
From: |
Hitoshi Mitake |
Subject: |
Re: [Qemu-devel] [sheepdog] [PATCH v3] sheepdog: selectable object size support |
Date: |
Fri, 23 Jan 2015 17:30:03 +0900 |
User-agent: |
Wanderlust/2.15.9 (Almost Unreal) SEMI/1.14.6 (Maruoka) FLIM/1.14.9 (Goj$(D+W(B) APEL/10.8 Emacs/24.3 (x86_64-pc-linux-gnu) MULE/6.0 (HANACHIRUSATO) |
At Fri, 23 Jan 2015 17:24:00 +0900,
Teruaki Ishizaki wrote:
>
> Previously, qemu block driver of sheepdog used hard-coded VDI object size.
> This patch enables users to handle "block_size_shift" value for
> calculating VDI object size.
>
> When you start qemu, you don't need to specify additional command option.
>
> But when you create the VDI which doesn't have default object size
> with qemu-img command, you specify block_size_shift option.
>
> If you want to create a VDI of 8MB(1 << 23) object size,
> you need to specify following command option.
>
> # qemu-img create -o block_size_shift=23 sheepdog:test1 100M
>
> In addition, when you don't specify qemu-img command option,
> a default value of sheepdog cluster is used for creating VDI.
>
> # qemu-img create sheepdog:test2 100M
>
> Signed-off-by: Teruaki Ishizaki <address@hidden>
> ---
> V3:
> - Delete the needless operation of buffer.
> - Delete the needless operations of request header
> for SD_OP_GET_CLUSTER_DEFAULT.
> - Fix coding style problems.
>
> V2:
> - Fix coding style problem (white space).
> - Add members, store_policy and block_size_shift to struct SheepdogVdiReq
> - Initialize request header to use block_size_shift specified by user.
> ---
> block/sheepdog.c | 140
> ++++++++++++++++++++++++++++++++++++++-------
> include/block/block_int.h | 1 +
> 2 files changed, 119 insertions(+), 22 deletions(-)
Looks good to me.
Acked-by: Hitoshi Mitake <address@hidden>
Thanks,
Hitoshi