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[Qemu-devel] [PATCH v13 00/12] qcow2 zero-cluster tweaks [was add blkdeb
From: |
Eric Blake |
Subject: |
[Qemu-devel] [PATCH v13 00/12] qcow2 zero-cluster tweaks [was add blkdebug tests] |
Date: |
Sat, 6 May 2017 19:05:40 -0500 |
I've collected several improvements for qcow2 zero-cluster handling.
Available as a tag at:
git fetch git://repo.or.cz/qemu/ericb.git nbd-blkdebug-v13
Marked as v13 for "hysterical raisins", since it it the half of
v10 [1] that was not resubmitted as v11 [2].
Depends on Max's block tree:
https://lists.gnu.org/archive/html/qemu-devel/2017-05/msg00641.html
and on Max's qcow2 cleanups:
https://lists.gnu.org/archive/html/qemu-devel/2017-05/msg00689.html
[1] https://lists.gnu.org/archive/html/qemu-devel/2017-04/msg05227.html
[2] https://lists.gnu.org/archive/html/qemu-devel/2017-04/msg05896.html
[3] https://lists.gnu.org/archive/html/qemu-devel/2017-05/msg00722.html
Changes since last posting (v12 [3]):
- 2 more new patches: split indentation from other changes (patch 1),
and add a typedef (patch 5)
- address Max's findings
001/12:[down] 'qcow2: Nicer variable names in qcow2_update_snapshot_refcount()'
002/12:[0040] [FC] 'qcow2: Use consistent switch indentation'
003/12:[----] [--] 'block: Update comments on BDRV_BLOCK_* meanings'
004/12:[----] [--] 'qcow2: Correctly report status of preallocated zero
clusters'
005/12:[down] 'qcow2: Name typedef for cluster type'
006/12:[0032] [FC] 'qcow2: Make distinction between zero cluster types obvious'
007/12:[0002] [FC] 'qcow2: Optimize zero_single_l2() to minimize L2 churn'
008/12:[0002] [FC] 'iotests: Improve _filter_qemu_img_map'
009/12:[0010] [FC] 'iotests: Add test 179 to cover write zeroes with unmap'
010/12:[0003] [FC] 'qcow2: Optimize write zero of unaligned tail cluster'
011/12:[----] [--] 'qcow2: Assert that cluster operations are aligned'
012/12:[----] [--] 'qcow2: Discard/zero clusters by byte count'
Eric Blake (12):
qcow2: Nicer variable names in qcow2_update_snapshot_refcount()
qcow2: Use consistent switch indentation
block: Update comments on BDRV_BLOCK_* meanings
qcow2: Correctly report status of preallocated zero clusters
qcow2: Name typedef for cluster type
qcow2: Make distinction between zero cluster types obvious
qcow2: Optimize zero_single_l2() to minimize L2 churn
iotests: Improve _filter_qemu_img_map
iotests: Add test 179 to cover write zeroes with unmap
qcow2: Optimize write zero of unaligned tail cluster
qcow2: Assert that cluster operations are aligned
qcow2: Discard/zero clusters by byte count
block/qcow2.h | 23 +++--
include/block/block.h | 35 ++++----
include/block/block_int.h | 7 ++
block/qcow2-cluster.c | 181 ++++++++++++++++++++++-----------------
block/qcow2-refcount.c | 144 +++++++++++++++----------------
block/qcow2-snapshot.c | 7 +-
block/qcow2.c | 38 ++++----
tests/qemu-iotests/common.filter | 4 +-
tests/qemu-iotests/060.out | 6 +-
tests/qemu-iotests/122.out | 16 ++--
tests/qemu-iotests/154 | 160 +++++++++++++++++++++++++++++++++-
tests/qemu-iotests/154.out | 158 ++++++++++++++++++++++++++++++----
tests/qemu-iotests/179 | 130 ++++++++++++++++++++++++++++
tests/qemu-iotests/179.out | 156 +++++++++++++++++++++++++++++++++
tests/qemu-iotests/group | 1 +
15 files changed, 840 insertions(+), 226 deletions(-)
create mode 100755 tests/qemu-iotests/179
create mode 100644 tests/qemu-iotests/179.out
--
2.9.3