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From 521f0cf0b4830249e6219c27b825311450519213 Mon Sep 17 00:00:00 2001
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From: John Snow <jsnow@redhat.com>
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Date: Wed, 18 Jul 2018 22:54:41 +0200
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ae23c9 |
Subject: [PATCH 223/268] qapi: add disabled parameter to
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block-dirty-bitmap-add
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ae23c9 |
RH-Author: John Snow <jsnow@redhat.com>
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Message-id: <20180718225511.14878-6-jsnow@redhat.com>
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Patchwork-id: 81404
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O-Subject: [RHEL-7.6 qemu-kvm-rhev PATCH 05/35] qapi: add disabled parameter to block-dirty-bitmap-add
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Bugzilla: 1207657
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RH-Acked-by: Eric Blake <eblake@redhat.com>
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
ae23c9 |
RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
ae23c9 |
RH-Acked-by: Fam Zheng <famz@redhat.com>
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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From: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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ae23c9 |
This is needed, for example, to create a new bitmap and merge several
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disabled bitmaps into a new one. Without this flag we will have to
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ae23c9 |
put block-dirty-bitmap-add and block-dirty-bitmap-disable into one
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ae23c9 |
transaction.
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Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
ae23c9 |
Signed-off-by: John Snow <jsnow@redhat.com>
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
ae23c9 |
Reviewed-by: Jeff Cody <jcody@redhat.com>
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ae23c9 |
Message-id: 20180606182449.1607-6-jsnow@redhat.com
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ae23c9 |
Signed-off-by: John Snow <jsnow@redhat.com>
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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(cherry picked from commit a6e2ca5f6521553681ae136578ec1cb67e1a7973)
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Signed-off-by: John Snow <jsnow@redhat.com>
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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---
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blockdev.c | 10 ++++++++++
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qapi/block-core.json | 6 +++++-
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2 files changed, 15 insertions(+), 1 deletion(-)
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diff --git a/blockdev.c b/blockdev.c
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index 837183c..d425746 100644
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--- a/blockdev.c
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+++ b/blockdev.c
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@@ -2074,6 +2074,7 @@ static void block_dirty_bitmap_add_prepare(BlkActionState *common,
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action->has_granularity, action->granularity,
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action->has_persistent, action->persistent,
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action->has_autoload, action->autoload,
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+ action->has_x_disabled, action->x_disabled,
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&local_err);
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if (!local_err) {
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@@ -2881,6 +2882,7 @@ void qmp_block_dirty_bitmap_add(const char *node, const char *name,
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bool has_granularity, uint32_t granularity,
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bool has_persistent, bool persistent,
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bool has_autoload, bool autoload,
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+ bool has_disabled, bool disabled,
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Error **errp)
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{
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BlockDriverState *bs;
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@@ -2915,6 +2917,10 @@ void qmp_block_dirty_bitmap_add(const char *node, const char *name,
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warn_report("Autoload option is deprecated and its value is ignored");
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}
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+ if (!has_disabled) {
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+ disabled = false;
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+ }
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+
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if (persistent &&
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!bdrv_can_store_new_dirty_bitmap(bs, name, granularity, errp))
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{
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@@ -2926,6 +2932,10 @@ void qmp_block_dirty_bitmap_add(const char *node, const char *name,
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return;
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}
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+ if (disabled) {
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+ bdrv_disable_dirty_bitmap(bitmap);
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+ }
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+
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bdrv_dirty_bitmap_set_persistance(bitmap, persistent);
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}
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diff --git a/qapi/block-core.json b/qapi/block-core.json
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index 50a2763..9a9cfa0 100644
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--- a/qapi/block-core.json
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+++ b/qapi/block-core.json
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@@ -1734,11 +1734,15 @@
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# Currently, all dirty tracking bitmaps are loaded from Qcow2 on
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# open.
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#
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+# @x-disabled: the bitmap is created in the disabled state, which means that
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+# it will not track drive changes. The bitmap may be enabled with
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+# x-block-dirty-bitmap-enable. Default is false. (Since: 3.0)
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+#
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# Since: 2.4
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##
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{ 'struct': 'BlockDirtyBitmapAdd',
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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'data': { 'node': 'str', 'name': 'str', '*granularity': 'uint32',
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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- '*persistent': 'bool', '*autoload': 'bool' } }
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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+ '*persistent': 'bool', '*autoload': 'bool', '*x-disabled': 'bool' } }
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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##
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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# @BlockDirtyBitmapMerge:
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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--
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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1.8.3.1
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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