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Re: [Qemu-devel] [PATCH v8 0/4] qemu-img: add preallocation=full
From: |
Stefan Hajnoczi |
Subject: |
Re: [Qemu-devel] [PATCH v8 0/4] qemu-img: add preallocation=full |
Date: |
Tue, 6 May 2014 14:19:48 +0200 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Wed, Apr 09, 2014 at 03:12:33PM +0800, Hu Tao wrote:
> The purpose of this series is to use posix_fallocate() when creating
> img file to ensure there are disk space for it which is way fast than
> acturally writing to disk. But this only works in file system level.
> For cases like thin provisioning, an option full preallocation is
> added to write zeros to storage to ensure disk space.
>
> Hu Tao (4):
> qapi: introduce PreallocMode and a new PreallocMode full.
> raw, qcow2: don't convert file size to sector size
> raw-posix: Add full image preallocation option
> qcow2: Add full image preallocation option
>
> block/qcow2.c | 95
> ++++++++++++++++++++++++++++++++++++++++------
> block/raw-posix.c | 63 ++++++++++++++++++++++++++----
> block/raw-win32.c | 4 +-
> qapi-schema.json | 14 +++++++
> tests/qemu-iotests/082.out | 54 +++++++++++++-------------
> 5 files changed, 182 insertions(+), 48 deletions(-)
Kevin: You had review comments on the last revision. Are you happy with
v8?
Stefan
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