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[Qemu-devel] [PATCH v2 0/9] block: Add COR filter driver
From: |
Max Reitz |
Subject: |
[Qemu-devel] [PATCH v2 0/9] block: Add COR filter driver |
Date: |
Sat, 21 Apr 2018 15:29:20 +0200 |
This series adds a copy-on-read block filter driver which works by
simply setting the BDRV_REQ_COPY_ON_READ flag on write requests (and
otherwise just passing everything through).
Cover letter of v1:
http://lists.nongnu.org/archive/html/qemu-block/2018-04/msg00285.html
v2:
- Renamed the driver "copy-on-read" (from just "cor") [Stefan]
- Commit message typo fix in patch 2 [Stefan, Berto]
git-backport-diff against v2:
Key:
[----] : patches are identical
[####] : number of functional differences between upstream/downstream patch
[down] : patch is downstream-only
The flags [FC] indicate (F)unctional and (C)ontextual differences, respectively
001/9:[0020] [FC] 'block: Add COR filter driver'
002/9:[----] [--] 'block: BLK_PERM_WRITE includes ..._UNCHANGED'
003/9:[----] [--] 'block: Add BDRV_REQ_WRITE_UNCHANGED flag'
004/9:[----] [--] 'block: Set BDRV_REQ_WRITE_UNCHANGED for COR writes'
005/9:[----] [--] 'block/quorum: Support BDRV_REQ_WRITE_UNCHANGED'
006/9:[----] [--] 'block: Support BDRV_REQ_WRITE_UNCHANGED in filters'
007/9:[----] [--] 'iotests: Clean up wrap image in 197'
008/9:[0010] [FC] 'iotests: Copy 197 for COR filter driver'
009/9:[0004] [FC] 'iotests: Add test for COR across nodes'
Max Reitz (9):
block: Add COR filter driver
block: BLK_PERM_WRITE includes ..._UNCHANGED
block: Add BDRV_REQ_WRITE_UNCHANGED flag
block: Set BDRV_REQ_WRITE_UNCHANGED for COR writes
block/quorum: Support BDRV_REQ_WRITE_UNCHANGED
block: Support BDRV_REQ_WRITE_UNCHANGED in filters
iotests: Clean up wrap image in 197
iotests: Copy 197 for COR filter driver
iotests: Add test for COR across nodes
block/Makefile.objs | 2 +-
qapi/block-core.json | 5 +-
include/block/block.h | 9 ++-
block/blkdebug.c | 9 +--
block/blkreplay.c | 3 +
block/blkverify.c | 3 +
block/copy-on-read.c | 173 +++++++++++++++++++++++++++++++++++++++++++++
block/io.c | 12 +++-
block/mirror.c | 2 +
block/quorum.c | 19 +++--
block/raw-format.c | 9 +--
block/throttle.c | 6 +-
tests/qemu-iotests/197 | 1 +
tests/qemu-iotests/215 | 120 +++++++++++++++++++++++++++++++
tests/qemu-iotests/215.out | 26 +++++++
tests/qemu-iotests/216 | 117 ++++++++++++++++++++++++++++++
tests/qemu-iotests/216.out | 28 ++++++++
tests/qemu-iotests/group | 2 +
18 files changed, 524 insertions(+), 22 deletions(-)
create mode 100644 block/copy-on-read.c
create mode 100755 tests/qemu-iotests/215
create mode 100644 tests/qemu-iotests/215.out
create mode 100755 tests/qemu-iotests/216
create mode 100644 tests/qemu-iotests/216.out
--
2.14.3