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[Qemu-block] [PATCH v7 07/16] block/dirty-bitmap: add bdrv_dirty_bitmap_
From: |
Vladimir Sementsov-Ogievskiy |
Subject: |
[Qemu-block] [PATCH v7 07/16] block/dirty-bitmap: add bdrv_dirty_bitmap_release_successor |
Date: |
Mon, 10 Jul 2017 19:30:20 +0300 |
To just release successor and unfreeze bitmap without any additional
work.
Signed-off-by: Vladimir Sementsov-Ogievskiy <address@hidden>
Signed-off-by: Denis V. Lunev <address@hidden>
---
block/dirty-bitmap.c | 13 +++++++++++++
include/block/dirty-bitmap.h | 2 ++
2 files changed, 15 insertions(+)
diff --git a/block/dirty-bitmap.c b/block/dirty-bitmap.c
index 7b598c36bf..b5678d2d25 100644
--- a/block/dirty-bitmap.c
+++ b/block/dirty-bitmap.c
@@ -303,6 +303,19 @@ BdrvDirtyBitmap
*bdrv_reclaim_dirty_bitmap(BlockDriverState *bs,
return parent;
}
+/* Called with BQL taken. */
+void bdrv_dirty_bitmap_release_successor(BlockDriverState *bs,
+ BdrvDirtyBitmap *parent)
+{
+ qemu_mutex_lock(parent->mutex);
+
+ if (parent->successor) {
+ bdrv_release_dirty_bitmap(bs, parent->successor);
+ parent->successor = NULL;
+ }
+
+ qemu_mutex_unlock(parent->mutex);
+}
/**
* Truncates _all_ bitmaps attached to a BDS.
* Called with BQL taken.
diff --git a/include/block/dirty-bitmap.h b/include/block/dirty-bitmap.h
index d00a7a4b7c..fa2f670050 100644
--- a/include/block/dirty-bitmap.h
+++ b/include/block/dirty-bitmap.h
@@ -20,6 +20,8 @@ BdrvDirtyBitmap *bdrv_dirty_bitmap_abdicate(BlockDriverState
*bs,
BdrvDirtyBitmap *bdrv_reclaim_dirty_bitmap(BlockDriverState *bs,
BdrvDirtyBitmap *bitmap,
Error **errp);
+void bdrv_dirty_bitmap_release_successor(BlockDriverState *bs,
+ BdrvDirtyBitmap *bitmap);
void bdrv_dirty_bitmap_enable_successor(BdrvDirtyBitmap *bitmap);
BdrvDirtyBitmap *bdrv_find_dirty_bitmap(BlockDriverState *bs,
const char *name);
--
2.11.1
- [Qemu-block] [PATCH v7 08/16] migration: include migrate_dirty_bitmaps in migrate_postcopy, (continued)
- [Qemu-block] [PATCH v7 08/16] migration: include migrate_dirty_bitmaps in migrate_postcopy, Vladimir Sementsov-Ogievskiy, 2017/07/10
- [Qemu-block] [PATCH v7 06/16] qapi: add dirty-bitmaps migration capability, Vladimir Sementsov-Ogievskiy, 2017/07/10
- [Qemu-block] [PATCH v7 02/16] migration: fix ram_save_pending, Vladimir Sementsov-Ogievskiy, 2017/07/10
- [Qemu-block] [PATCH v7 16/16] iotests: add dirty bitmap postcopy test, Vladimir Sementsov-Ogievskiy, 2017/07/10
- [Qemu-block] [PATCH v7 15/16] iotests: add dirty bitmap migration test, Vladimir Sementsov-Ogievskiy, 2017/07/10
- [Qemu-block] [PATCH v7 03/16] migration: split common postcopy out of ram postcopy, Vladimir Sementsov-Ogievskiy, 2017/07/10
- [Qemu-block] [PATCH v7 14/16] iotests: add default node-name, Vladimir Sementsov-Ogievskiy, 2017/07/10
- [Qemu-block] [PATCH v7 07/16] block/dirty-bitmap: add bdrv_dirty_bitmap_release_successor,
Vladimir Sementsov-Ogievskiy <=
- [Qemu-block] [PATCH v7 01/16] migration: add has_postcopy savevm handler, Vladimir Sementsov-Ogievskiy, 2017/07/10
- [Qemu-block] [PATCH v7 05/16] block/dirty-bitmap: add bdrv_dirty_bitmap_enable_successor(), Vladimir Sementsov-Ogievskiy, 2017/07/10
- [Qemu-block] [PATCH v7 11/16] block/dirty-bitmap: add bdrv_dirty_bitmap_set_frozen, Vladimir Sementsov-Ogievskiy, 2017/07/10
- [Qemu-block] [PATCH v7 09/16] migration/qemu-file: add qemu_put_counted_string(), Vladimir Sementsov-Ogievskiy, 2017/07/10
- [Qemu-block] [PATCH v7 10/16] migration: add is_active_iterate handler, Vladimir Sementsov-Ogievskiy, 2017/07/10
- [Qemu-block] [PATCH v7 04/16] migration: introduce postcopy-only pending, Vladimir Sementsov-Ogievskiy, 2017/07/10
- [Qemu-block] [PATCH v7 12/16] migration: add postcopy migration of dirty bitmaps, Vladimir Sementsov-Ogievskiy, 2017/07/10