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From 58816c3709e5058e8805333ca011cc4e793d67ff Mon Sep 17 00:00:00 2001
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From: Eric Blake <eblake@redhat.com>
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Date: Tue, 2 Jun 2020 02:34:18 +0100
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Subject: [PATCH 13/26] qemu-img: Factor out code for merging bitmaps
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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RH-Author: Eric Blake <eblake@redhat.com>
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Message-id: <20200602023420.2133649-11-eblake@redhat.com>
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Patchwork-id: 97078
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O-Subject: [RHEL-AV-8.2.1 qemu-kvm PATCH 10/12] qemu-img: Factor out code for merging bitmaps
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Bugzilla: 1779893 1779904
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RH-Acked-by: Philippe Mathieu-Daudé <philmd@redhat.com>
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RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
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RH-Acked-by: Max Reitz <mreitz@redhat.com>
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RH-Acked-by: Kevin Wolf <kwolf@redhat.com>
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The next patch will add another client that wants to merge dirty
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bitmaps; it will be easier to refactor the code to construct the QAPI
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struct correctly into a helper function.
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Signed-off-by: Eric Blake <eblake@redhat.com>
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Message-Id: <20200521192137.1120211-4-eblake@redhat.com>
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Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
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(cherry picked from commit 6c729dd832207d7347ecb074912f538e2942f269)
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Signed-off-by: Eric Blake <eblake@redhat.com>
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Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
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---
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qemu-img.c | 34 +++++++++++++++++++++-------------
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1 file changed, 21 insertions(+), 13 deletions(-)
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diff --git a/qemu-img.c b/qemu-img.c
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index b57856e..39e1586 100644
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--- a/qemu-img.c
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+++ b/qemu-img.c
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@@ -1582,6 +1582,24 @@ out4:
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return ret;
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}
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+/* Convenience wrapper around qmp_block_dirty_bitmap_merge */
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+static void do_dirty_bitmap_merge(const char *dst_node, const char *dst_name,
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+ const char *src_node, const char *src_name,
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+ Error **errp)
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+{
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+ BlockDirtyBitmapMergeSource *merge_src;
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+ BlockDirtyBitmapMergeSourceList *list;
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+
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+ merge_src = g_new0(BlockDirtyBitmapMergeSource, 1);
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+ merge_src->type = QTYPE_QDICT;
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+ merge_src->u.external.node = g_strdup(src_node);
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+ merge_src->u.external.name = g_strdup(src_name);
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+ list = g_new0(BlockDirtyBitmapMergeSourceList, 1);
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+ list->value = merge_src;
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+ qmp_block_dirty_bitmap_merge(dst_node, dst_name, list, errp);
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+ qapi_free_BlockDirtyBitmapMergeSourceList(list);
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+}
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+
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enum ImgConvertBlockStatus {
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BLK_DATA,
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BLK_ZERO,
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@@ -4614,21 +4632,11 @@ static int img_bitmap(int argc, char **argv)
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qmp_block_dirty_bitmap_disable(bs->node_name, bitmap, &err;;
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op = "disable";
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break;
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- case BITMAP_MERGE: {
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- BlockDirtyBitmapMergeSource *merge_src;
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- BlockDirtyBitmapMergeSourceList *list;
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-
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- merge_src = g_new0(BlockDirtyBitmapMergeSource, 1);
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- merge_src->type = QTYPE_QDICT;
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- merge_src->u.external.node = g_strdup(src_bs->node_name);
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- merge_src->u.external.name = g_strdup(act->src);
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- list = g_new0(BlockDirtyBitmapMergeSourceList, 1);
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- list->value = merge_src;
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- qmp_block_dirty_bitmap_merge(bs->node_name, bitmap, list, &err;;
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- qapi_free_BlockDirtyBitmapMergeSourceList(list);
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+ case BITMAP_MERGE:
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+ do_dirty_bitmap_merge(bs->node_name, bitmap, src_bs->node_name,
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+ act->src, &err;;
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op = "merge";
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break;
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- }
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default:
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g_assert_not_reached();
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}
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--
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1.8.3.1
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