From: Hanna Reitz <hreitz@redhat.com>
To: qemu-block@nongnu.org
Cc: Kevin Wolf <kwolf@redhat.com>,
Peter Maydell <peter.maydell@linaro.org>,
Hanna Reitz <hreitz@redhat.com>,
qemu-devel@nongnu.org
Subject: [PULL 42/56] qapi: publish copy-before-write filter
Date: Wed, 1 Sep 2021 17:16:05 +0200 [thread overview]
Message-ID: <20210901151619.689075-43-hreitz@redhat.com> (raw)
In-Reply-To: <20210901151619.689075-1-hreitz@redhat.com>
From: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Acked-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20210824083856.17408-23-vsementsov@virtuozzo.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
---
qapi/block-core.json | 25 +++++++++++++++++++++++--
1 file changed, 23 insertions(+), 2 deletions(-)
diff --git a/qapi/block-core.json b/qapi/block-core.json
index 06674c25c9..c8ce1d9d5d 100644
--- a/qapi/block-core.json
+++ b/qapi/block-core.json
@@ -2825,13 +2825,14 @@
# @blklogwrites: Since 3.0
# @blkreplay: Since 4.2
# @compress: Since 5.0
+# @copy-before-write: Since 6.2
#
# Since: 2.9
##
{ 'enum': 'BlockdevDriver',
'data': [ 'blkdebug', 'blklogwrites', 'blkreplay', 'blkverify', 'bochs',
- 'cloop', 'compress', 'copy-on-read', 'dmg', 'file', 'ftp', 'ftps',
- 'gluster',
+ 'cloop', 'compress', 'copy-before-write', 'copy-on-read', 'dmg',
+ 'file', 'ftp', 'ftps', 'gluster',
{'name': 'host_cdrom', 'if': 'HAVE_HOST_BLOCK_DEVICE' },
{'name': 'host_device', 'if': 'HAVE_HOST_BLOCK_DEVICE' },
'http', 'https', 'iscsi',
@@ -4049,6 +4050,25 @@
'base': 'BlockdevOptionsGenericFormat',
'data': { '*bottom': 'str' } }
+##
+# @BlockdevOptionsCbw:
+#
+# Driver specific block device options for the copy-before-write driver,
+# which does so called copy-before-write operations: when data is
+# written to the filter, the filter first reads corresponding blocks
+# from its file child and copies them to @target child. After successfully
+# copying, the write request is propagated to file child. If copying
+# fails, the original write request is failed too and no data is written
+# to file child.
+#
+# @target: The target for copy-before-write operations.
+#
+# Since: 6.2
+##
+{ 'struct': 'BlockdevOptionsCbw',
+ 'base': 'BlockdevOptionsGenericFormat',
+ 'data': { 'target': 'BlockdevRef' } }
+
##
# @BlockdevOptions:
#
@@ -4101,6 +4121,7 @@
'bochs': 'BlockdevOptionsGenericFormat',
'cloop': 'BlockdevOptionsGenericFormat',
'compress': 'BlockdevOptionsGenericFormat',
+ 'copy-before-write':'BlockdevOptionsCbw',
'copy-on-read':'BlockdevOptionsCor',
'dmg': 'BlockdevOptionsGenericFormat',
'file': 'BlockdevOptionsFile',
--
2.31.1
next prev parent reply other threads:[~2021-09-01 16:01 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-01 15:15 [PULL 00/56] Block patches Hanna Reitz
2021-09-01 15:15 ` [PULL 01/56] python: qemu: add timer parameter for qmp.accept socket Hanna Reitz
2021-09-01 15:15 ` [PULL 02/56] python: Reduce strictness of pylint's duplicate-code check Hanna Reitz
2021-09-01 15:15 ` [PULL 03/56] python: qemu: pass the wrapper field from QEMUQtestmachine to QEMUMachine Hanna Reitz
2021-09-01 15:15 ` [PULL 04/56] docs/devel/testing: add debug section to the QEMU iotests chapter Hanna Reitz
2021-09-01 15:15 ` [PULL 05/56] qemu-iotests: add option to attach gdbserver Hanna Reitz
2021-09-01 15:15 ` [PULL 06/56] qemu-iotests: delay QMP socket timers Hanna Reitz
2021-09-01 15:15 ` [PULL 07/56] qemu_iotests: insert gdbserver command line as wrapper for qemu binary Hanna Reitz
2021-09-01 15:15 ` [PULL 08/56] qemu-iotests: add gdbserver option to script tests too Hanna Reitz
2021-09-01 15:15 ` [PULL 09/56] docs/devel/testing: add -gdb option to the debugging section of QEMU iotests Hanna Reitz
2021-09-01 15:15 ` [PULL 10/56] qemu-iotests: extend the check script to prepare supporting valgrind for python tests Hanna Reitz
2021-09-01 15:15 ` [PULL 11/56] qemu-iotests: extend QMP socket timeout when using valgrind Hanna Reitz
2021-09-01 15:15 ` [PULL 12/56] qemu-iotests: allow valgrind to read/delete the generated log file Hanna Reitz
2021-09-01 15:15 ` [PULL 13/56] qemu-iotests: insert valgrind command line as wrapper for qemu binary Hanna Reitz
2021-09-01 15:15 ` [PULL 14/56] docs/devel/testing: add -valgrind option to the debug section of QEMU iotests Hanna Reitz
2021-09-01 15:15 ` [PULL 15/56] qemu-iotests: add option to show qemu binary logs on stdout Hanna Reitz
2021-09-01 15:15 ` [PULL 16/56] docs/devel/testing: add -p option to the debug section of QEMU iotests Hanna Reitz
2021-09-01 15:15 ` [PULL 17/56] block/monitor: Consolidate hmp_handle_error calls to reduce redundant code Hanna Reitz
2021-09-01 15:15 ` [PULL 18/56] raw-format: drop WRITE and RESIZE child perms when possible Hanna Reitz
2021-09-01 15:15 ` [PULL 19/56] iotests: use with-statement for open() calls Hanna Reitz
2021-09-01 15:15 ` [PULL 20/56] iotests: use subprocess.DEVNULL instead of open("/dev/null") Hanna Reitz
2021-09-01 15:15 ` [PULL 21/56] block: introduce bdrv_replace_child_bs() Hanna Reitz
2021-09-01 15:15 ` [PULL 22/56] block: introduce blk_replace_bs Hanna Reitz
2021-09-01 15:15 ` [PULL 23/56] qdev-properties: PropertyInfo: add realized_set_allowed field Hanna Reitz
2021-09-01 15:15 ` [PULL 24/56] qdev: allow setting drive property for realized device Hanna Reitz
2021-09-01 15:15 ` [PULL 25/56] block: rename backup-top to copy-before-write Hanna Reitz
2021-09-01 15:15 ` [PULL 26/56] block-copy: move detecting fleecing scheme to block-copy Hanna Reitz
2021-09-01 15:15 ` [PULL 27/56] block/block-copy: introduce block_copy_set_copy_opts() Hanna Reitz
2021-09-01 15:15 ` [PULL 28/56] block/backup: set copy_range and compress after filter insertion Hanna Reitz
2021-09-01 15:15 ` [PULL 29/56] block/backup: move cluster size calculation to block-copy Hanna Reitz
2021-09-01 15:15 ` [PULL 30/56] block/copy-before-write: relax permission requirements when no parents Hanna Reitz
2021-09-01 15:15 ` [PULL 31/56] block/copy-before-write: drop extra bdrv_unref on failure path Hanna Reitz
2021-09-01 15:15 ` [PULL 32/56] block/copy-before-write: use file child instead of backing Hanna Reitz
2021-09-01 15:15 ` [PULL 33/56] block/copy-before-write: bdrv_cbw_append(): replace child at last Hanna Reitz
2021-09-01 15:15 ` [PULL 34/56] block/copy-before-write: introduce cbw_init() Hanna Reitz
2021-09-01 15:15 ` [PULL 35/56] block/copy-before-write: cbw_init(): rename variables Hanna Reitz
2021-09-01 15:15 ` [PULL 36/56] block/copy-before-write: cbw_init(): use file child after attaching Hanna Reitz
2021-09-01 15:16 ` [PULL 37/56] block/copy-before-write: bdrv_cbw_append(): drop unused compress arg Hanna Reitz
2021-09-01 15:16 ` [PULL 38/56] block/copy-before-write: cbw_init(): use options Hanna Reitz
2021-09-01 15:16 ` [PULL 39/56] block/copy-before-write: initialize block-copy bitmap Hanna Reitz
2021-09-01 15:16 ` [PULL 40/56] block/block-copy: make setting progress optional Hanna Reitz
2021-09-01 15:16 ` [PULL 41/56] block/copy-before-write: make public block driver Hanna Reitz
2021-09-20 9:41 ` Kevin Wolf
2021-09-20 10:08 ` Vladimir Sementsov-Ogievskiy
2021-09-01 15:16 ` Hanna Reitz [this message]
2021-09-01 15:16 ` [PULL 43/56] python/qemu/machine.py: refactor _qemu_args() Hanna Reitz
2021-09-01 15:16 ` [PULL 44/56] python/qemu/machine: QEMUMachine: improve qmp() method Hanna Reitz
2021-09-01 15:16 ` [PULL 45/56] python:QEMUMachine: template typing for self returning methods Hanna Reitz
2021-09-01 15:16 ` [PULL 46/56] iotests/222: fix pylint and mypy complains Hanna Reitz
2021-09-01 15:16 ` [PULL 47/56] iotests/222: constantly use single quotes for strings Hanna Reitz
2021-09-01 15:16 ` [PULL 48/56] iotests: move 222 to tests/image-fleecing Hanna Reitz
2021-09-01 15:16 ` [PULL 49/56] iotests.py: hmp_qemu_io: support qdev Hanna Reitz
2021-09-01 15:16 ` [PULL 50/56] iotests/image-fleecing: proper source device Hanna Reitz
2021-09-01 15:16 ` [PULL 51/56] iotests/image-fleecing: rename tgt_node Hanna Reitz
2021-09-01 15:16 ` [PULL 52/56] iotests/image-fleecing: prepare for adding new test-case Hanna Reitz
2021-09-01 15:16 ` [PULL 53/56] iotests/image-fleecing: add test-case for copy-before-write filter Hanna Reitz
2021-09-01 15:16 ` [PULL 54/56] block/block-copy: block_copy_state_new(): drop extra arguments Hanna Reitz
2021-09-01 15:16 ` [PULL 55/56] block/export/fuse.c: fix fuse-lseek on uclibc or musl Hanna Reitz
2021-09-01 15:16 ` [PULL 56/56] block/file-win32: add reopen handlers Hanna Reitz
2021-09-02 11:07 ` [PULL 00/56] Block patches Peter Maydell
2021-09-02 11:21 ` Hanna Reitz
2021-09-02 13:56 ` Peter Maydell
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