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[Qemu-devel] [PULL 01/13] block/dirty-bitmap: add bdrv_dirty_bitmap_enab
From: |
John Snow |
Subject: |
[Qemu-devel] [PULL 01/13] block/dirty-bitmap: add bdrv_dirty_bitmap_enable_successor() |
Date: |
Tue, 13 Mar 2018 17:14:29 -0400 |
From: Vladimir Sementsov-Ogievskiy <address@hidden>
Enabling bitmap successor is necessary to enable successors of bitmaps
being migrated before target vm start.
Signed-off-by: Vladimir Sementsov-Ogievskiy <address@hidden>
Reviewed-by: John Snow <address@hidden>
Reviewed-by: Fam Zheng <address@hidden>
Message-id: address@hidden
Signed-off-by: John Snow <address@hidden>
---
block/dirty-bitmap.c | 8 ++++++++
include/block/dirty-bitmap.h | 1 +
2 files changed, 9 insertions(+)
diff --git a/block/dirty-bitmap.c b/block/dirty-bitmap.c
index 909f0517f8..0d0e807216 100644
--- a/block/dirty-bitmap.c
+++ b/block/dirty-bitmap.c
@@ -234,6 +234,14 @@ int bdrv_dirty_bitmap_create_successor(BlockDriverState
*bs,
return 0;
}
+/* Called with BQL taken. */
+void bdrv_dirty_bitmap_enable_successor(BdrvDirtyBitmap *bitmap)
+{
+ qemu_mutex_lock(bitmap->mutex);
+ bdrv_enable_dirty_bitmap(bitmap->successor);
+ qemu_mutex_unlock(bitmap->mutex);
+}
+
/**
* For a bitmap with a successor, yield our name to the successor,
* delete the old bitmap, and return a handle to the new bitmap.
diff --git a/include/block/dirty-bitmap.h b/include/block/dirty-bitmap.h
index 09efec609f..e0ebc96b01 100644
--- a/include/block/dirty-bitmap.h
+++ b/include/block/dirty-bitmap.h
@@ -21,6 +21,7 @@ BdrvDirtyBitmap *bdrv_dirty_bitmap_abdicate(BlockDriverState
*bs,
BdrvDirtyBitmap *bdrv_reclaim_dirty_bitmap(BlockDriverState *bs,
BdrvDirtyBitmap *bitmap,
Error **errp);
+void bdrv_dirty_bitmap_enable_successor(BdrvDirtyBitmap *bitmap);
BdrvDirtyBitmap *bdrv_find_dirty_bitmap(BlockDriverState *bs,
const char *name);
void bdrv_dirty_bitmap_make_anon(BdrvDirtyBitmap *bitmap);
--
2.14.3
- [Qemu-devel] [PULL 00/13] Bitmaps patches, John Snow, 2018/03/13
- [Qemu-devel] [PULL 10/13] migration: allow qmp command migrate-start-postcopy for any postcopy, John Snow, 2018/03/13
- [Qemu-devel] [PULL 03/13] block/dirty-bitmap: add _locked version of bdrv_reclaim_dirty_bitmap, John Snow, 2018/03/13
- [Qemu-devel] [PULL 08/13] migration/qemu-file: add qemu_put_counted_string(), John Snow, 2018/03/13
- [Qemu-devel] [PULL 09/13] migration: add is_active_iterate handler, John Snow, 2018/03/13
- [Qemu-devel] [PULL 05/13] migration: introduce postcopy-only pending, John Snow, 2018/03/13
- [Qemu-devel] [PULL 02/13] block/dirty-bitmap: fix locking in bdrv_reclaim_dirty_bitmap, John Snow, 2018/03/13
- [Qemu-devel] [PULL 01/13] block/dirty-bitmap: add bdrv_dirty_bitmap_enable_successor(),
John Snow <=
- [Qemu-devel] [PULL 06/13] qapi: add dirty-bitmaps migration capability, John Snow, 2018/03/13
- [Qemu-devel] [PULL 07/13] migration: include migrate_dirty_bitmaps in migrate_postcopy, John Snow, 2018/03/13
- [Qemu-devel] [PULL 04/13] dirty-bitmap: add locked state, John Snow, 2018/03/13
- [Qemu-devel] [PULL 13/13] iotests: add dirty bitmap postcopy test, John Snow, 2018/03/13
- [Qemu-devel] [PULL 12/13] iotests: add dirty bitmap migration test, John Snow, 2018/03/13
- [Qemu-devel] [PULL 11/13] migration: add postcopy migration of dirty bitmaps, John Snow, 2018/03/13
- Re: [Qemu-devel] [PULL 00/13] Bitmaps patches, no-reply, 2018/03/14
- Re: [Qemu-devel] [PULL 00/13] Bitmaps patches, Peter Maydell, 2018/03/16