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[Qemu-devel] [PATCH v12 0/6] qcow2, raw: add preallocation=full and prea
From: |
Hu Tao |
Subject: |
[Qemu-devel] [PATCH v12 0/6] qcow2, raw: add preallocation=full and preallocation=falloc |
Date: |
Fri, 11 Jul 2014 14:09:57 +0800 |
This series adds two preallocation mode to qcow2 and raw:
Option preallocation=full preallocates disk space for image by writing
zeros to disk, this ensures disk space in any cases.
Option preallocation=falloc preallocates disk space by calling
posix_fallocate(). This is faster than preallocation=full.
This series depends on patches 1-3 of Max's series 'qemu-img: Implement
commit like QMP'. Specifically, patch 6 'qcow2: Add falloc and full
preallocation option' uses minimal_blob_size() introduced by Max's patch
'qcow2: Optimize bdrv_make_empty()'.
The series is also at https://github.com/taohu/qemu/commits/preallocation-v12
for you to check out, including depended patches from Max.
Eric, I'm afraid now we missed qemu 2.1, so patch 1 is still sent
with this series.
changes to v11:
- fix test case 049 (patch 4)
- unsigned nl2e -> uint64_t nl2e (patch 6)
- use >> instead of / (patch 6)
Hu Tao (6):
block: round up file size to nearest sector
raw, qcow2: don't convert file size to sector size
rename parse_enum_option to qapi_enum_parse and make it public
qapi: introduce PreallocMode and a new PreallocMode full.
raw-posix: Add falloc and full preallocation option
qcow2: Add falloc and full preallocation option
block/qcow2.c | 56 +++++++++++++++++++++-------
block/raw-posix.c | 92 +++++++++++++++++++++++++++++++++++-----------
block/raw-win32.c | 6 +--
blockdev.c | 30 +++------------
include/qapi/util.h | 17 +++++++++
qapi/Makefile.objs | 1 +
qapi/block-core.json | 17 +++++++++
qapi/qapi-util.c | 32 ++++++++++++++++
tests/qemu-iotests/049.out | 2 +-
tests/qemu-iotests/082.out | 54 +++++++++++++--------------
tests/qemu-iotests/096 | 64 ++++++++++++++++++++++++++++++++
tests/qemu-iotests/096.out | 14 +++++++
tests/qemu-iotests/group | 1 +
13 files changed, 296 insertions(+), 90 deletions(-)
create mode 100644 include/qapi/util.h
create mode 100644 qapi/qapi-util.c
create mode 100755 tests/qemu-iotests/096
create mode 100644 tests/qemu-iotests/096.out
--
1.9.3
- [Qemu-devel] [PATCH v12 0/6] qcow2, raw: add preallocation=full and preallocation=falloc,
Hu Tao <=
- [Qemu-devel] [PATCH v12 1/6] block: round up file size to nearest sector, Hu Tao, 2014/07/11
- [Qemu-devel] [PATCH v12 3/6] rename parse_enum_option to qapi_enum_parse and make it public, Hu Tao, 2014/07/11
- [Qemu-devel] [PATCH v12 4/6] qapi: introduce PreallocMode and a new PreallocMode full., Hu Tao, 2014/07/11
- [Qemu-devel] [PATCH v12 2/6] raw, qcow2: don't convert file size to sector size, Hu Tao, 2014/07/11
- [Qemu-devel] [PATCH v12 5/6] raw-posix: Add falloc and full preallocation option, Hu Tao, 2014/07/11
- [Qemu-devel] [PATCH v12 6/6] qcow2: Add falloc and full preallocation option, Hu Tao, 2014/07/11
- Re: [Qemu-devel] [PATCH v12 0/6] qcow2, raw: add preallocation=full and preallocation=falloc, Hu Tao, 2014/07/28