From ecbd9793ceb09c1dbbe2e37fd132aa428eb2b4fb Mon Sep 17 00:00:00 2001 From: John Snow Date: Wed, 18 Jul 2018 22:54:41 +0200 Subject: [PATCH 56/89] qapi: add disabled parameter to block-dirty-bitmap-add RH-Author: John Snow Message-id: <20180718225511.14878-6-jsnow@redhat.com> Patchwork-id: 81404 O-Subject: [RHEL-7.6 qemu-kvm-rhev PATCH 05/35] qapi: add disabled parameter to block-dirty-bitmap-add Bugzilla: 1207657 RH-Acked-by: Eric Blake RH-Acked-by: Stefan Hajnoczi RH-Acked-by: Fam Zheng From: Vladimir Sementsov-Ogievskiy This is needed, for example, to create a new bitmap and merge several disabled bitmaps into a new one. Without this flag we will have to put block-dirty-bitmap-add and block-dirty-bitmap-disable into one transaction. Signed-off-by: Vladimir Sementsov-Ogievskiy Signed-off-by: John Snow Reviewed-by: Jeff Cody Message-id: 20180606182449.1607-6-jsnow@redhat.com Signed-off-by: John Snow (cherry picked from commit a6e2ca5f6521553681ae136578ec1cb67e1a7973) Signed-off-by: John Snow Signed-off-by: Miroslav Rezanina --- blockdev.c | 10 ++++++++++ qapi/block-core.json | 6 +++++- 2 files changed, 15 insertions(+), 1 deletion(-) diff --git a/blockdev.c b/blockdev.c index 3728082..9beef10 100644 --- a/blockdev.c +++ b/blockdev.c @@ -2115,6 +2115,7 @@ static void block_dirty_bitmap_add_prepare(BlkActionState *common, action->has_granularity, action->granularity, action->has_persistent, action->persistent, action->has_autoload, action->autoload, + action->has_x_disabled, action->x_disabled, &local_err); if (!local_err) { @@ -2922,6 +2923,7 @@ void qmp_block_dirty_bitmap_add(const char *node, const char *name, bool has_granularity, uint32_t granularity, bool has_persistent, bool persistent, bool has_autoload, bool autoload, + bool has_disabled, bool disabled, Error **errp) { BlockDriverState *bs; @@ -2956,6 +2958,10 @@ void qmp_block_dirty_bitmap_add(const char *node, const char *name, warn_report("Autoload option is deprecated and its value is ignored"); } + if (!has_disabled) { + disabled = false; + } + if (persistent && !bdrv_can_store_new_dirty_bitmap(bs, name, granularity, errp)) { @@ -2967,6 +2973,10 @@ void qmp_block_dirty_bitmap_add(const char *node, const char *name, return; } + if (disabled) { + bdrv_disable_dirty_bitmap(bitmap); + } + bdrv_dirty_bitmap_set_persistance(bitmap, persistent); } diff --git a/qapi/block-core.json b/qapi/block-core.json index 4e1fda3..27ed91b 100644 --- a/qapi/block-core.json +++ b/qapi/block-core.json @@ -1734,11 +1734,15 @@ # Currently, all dirty tracking bitmaps are loaded from Qcow2 on # open. # +# @x-disabled: the bitmap is created in the disabled state, which means that +# it will not track drive changes. The bitmap may be enabled with +# x-block-dirty-bitmap-enable. Default is false. (Since: 3.0) +# # Since: 2.4 ## { 'struct': 'BlockDirtyBitmapAdd', 'data': { 'node': 'str', 'name': 'str', '*granularity': 'uint32', - '*persistent': 'bool', '*autoload': 'bool' } } + '*persistent': 'bool', '*autoload': 'bool', '*x-disabled': 'bool' } } ## # @BlockDirtyBitmapMerge: -- 1.8.3.1