From: John Snow <jsnow@redhat.com>
To: qemu-devel@nongnu.org, qemu-block@nongnu.org
Cc: Kevin Wolf <kwolf@redhat.com>, Fam Zheng <fam@euphon.net>,
vsementsov@virtuozzo.com, Wen Congyang <wencongyang2@huawei.com>,
Xie Changlong <xiechanglong.d@gmail.com>,
Markus Armbruster <armbru@redhat.com>,
Max Reitz <mreitz@redhat.com>, John Snow <jsnow@redhat.com>
Subject: [Qemu-devel] [PATCH 01/12] qapi: add BitmapSyncMode enum
Date: Wed, 19 Jun 2019 21:03:45 -0400 [thread overview]
Message-ID: <20190620010356.19164-2-jsnow@redhat.com> (raw)
In-Reply-To: <20190620010356.19164-1-jsnow@redhat.com>
Depending on what a user is trying to accomplish, there might be a few
bitmap cleanup actions that occur when an operation is finished that
could be useful.
I am proposing three:
- NEVER: The bitmap is never synchronized against what was copied.
- ALWAYS: The bitmap is always synchronized, even on failures.
- CONDITIONAL: The bitmap is synchronized only on success.
The existing incremental backup modes use 'conditional' semantics,
so add just that one for right now.
Signed-off-by: John Snow <jsnow@redhat.com>
---
qapi/block-core.json | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/qapi/block-core.json b/qapi/block-core.json
index 0d43d4f37c..caf28a71a0 100644
--- a/qapi/block-core.json
+++ b/qapi/block-core.json
@@ -1134,6 +1134,20 @@
{ 'enum': 'MirrorSyncMode',
'data': ['top', 'full', 'none', 'incremental'] }
+##
+# @BitmapSyncMode:
+#
+# An enumeration of possible behaviors for the synchronization of a bitmap
+# when used for data copy operations.
+#
+# @conditional: The bitmap is only synchronized when the operation is successul.
+# This is useful for Incremental semantics.
+#
+# Since: 4.1
+##
+{ 'enum': 'BitmapSyncMode',
+ 'data': ['conditional'] }
+
##
# @MirrorCopyMode:
#
--
2.21.0
next prev parent reply other threads:[~2019-06-20 1:33 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-20 1:03 [Qemu-devel] [PATCH 00/12] bitmaps: introduce 'bitmap' sync mode John Snow
2019-06-20 1:03 ` John Snow [this message]
2019-06-20 14:21 ` [Qemu-devel] [PATCH 01/12] qapi: add BitmapSyncMode enum Max Reitz
2019-06-20 1:03 ` [Qemu-devel] [PATCH 02/12] block/backup: Add mirror sync mode 'bitmap' John Snow
2019-06-20 15:00 ` Max Reitz
2019-06-20 16:01 ` John Snow
2019-06-20 18:46 ` Max Reitz
2019-06-21 11:29 ` Vladimir Sementsov-Ogievskiy
2019-06-21 19:39 ` John Snow
2019-06-20 1:03 ` [Qemu-devel] [PATCH 03/12] block/backup: add 'never' policy to bitmap sync mode John Snow
2019-06-20 15:25 ` Max Reitz
2019-06-20 16:11 ` John Snow
2019-06-20 1:03 ` [Qemu-devel] [PATCH 04/12] hbitmap: Fix merge when b is empty, and result is not an alias of a John Snow
2019-06-20 15:39 ` Max Reitz
2019-06-20 16:13 ` John Snow
2019-06-20 1:03 ` [Qemu-devel] [PATCH 05/12] hbitmap: enable merging across granularities John Snow
2019-06-20 15:47 ` Max Reitz
2019-06-20 18:13 ` John Snow
2019-06-20 16:47 ` Max Reitz
2019-06-21 11:45 ` Vladimir Sementsov-Ogievskiy
2019-06-21 11:41 ` Vladimir Sementsov-Ogievskiy
2019-06-20 1:03 ` [Qemu-devel] [PATCH 06/12] block/dirty-bitmap: add bdrv_dirty_bitmap_claim John Snow
2019-06-20 16:02 ` Max Reitz
2019-06-20 16:36 ` John Snow
2019-06-21 11:58 ` Vladimir Sementsov-Ogievskiy
2019-06-21 21:34 ` John Snow
2019-06-20 1:03 ` [Qemu-devel] [PATCH 07/12] block/backup: add 'always' bitmap sync policy John Snow
2019-06-20 17:00 ` Max Reitz
2019-06-20 18:44 ` John Snow
2019-06-20 18:53 ` Max Reitz
2019-06-21 12:57 ` Vladimir Sementsov-Ogievskiy
2019-06-21 12:59 ` Vladimir Sementsov-Ogievskiy
2019-06-21 13:08 ` Vladimir Sementsov-Ogievskiy
2019-06-21 13:44 ` Vladimir Sementsov-Ogievskiy
2019-06-21 20:58 ` John Snow
2019-06-21 21:48 ` Max Reitz
2019-06-21 22:52 ` John Snow
2019-06-20 1:03 ` [Qemu-devel] [PATCH 08/12] iotests: add testing shim for script-style python tests John Snow
2019-06-20 17:09 ` Max Reitz
2019-06-20 17:26 ` Max Reitz
2019-06-20 18:47 ` John Snow
2019-06-20 18:55 ` Max Reitz
2019-06-20 1:03 ` [Qemu-devel] [PATCH 09/12] iotests: teach run_job to cancel pending jobs John Snow
2019-06-20 17:17 ` Max Reitz
2019-06-20 1:03 ` [Qemu-devel] [PATCH 10/12] iotests: teach FilePath to produce multiple paths John Snow
2019-06-20 17:22 ` Max Reitz
2019-06-20 1:03 ` [Qemu-devel] [PATCH 11/12] iotests: add test 257 for bitmap-mode backups John Snow
2019-06-20 18:35 ` Max Reitz
2019-06-20 19:08 ` John Snow
2019-06-20 19:48 ` Max Reitz
2019-06-20 19:59 ` John Snow
2019-06-20 1:03 ` [Qemu-devel] [PATCH 12/12] block/backup: loosen restriction on readonly bitmaps John Snow
2019-06-20 18:37 ` Max Reitz
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