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[Qemu-devel] [PATCH v19 13/16] block: Allow backup on referenced named B
From: |
Fam Zheng |
Subject: |
[Qemu-devel] [PATCH v19 13/16] block: Allow backup on referenced named BlockDriverState |
Date: |
Mon, 12 May 2014 09:35:52 +0800 |
Drive backup is a read only operation on source bs. We want to allow
this specific case to enable image-fleecing. Note that when
image-fleecing job starts, the job still add its blocker to source bs,
and any other operation on it will be blocked by that.
Signed-off-by: Fam Zheng <address@hidden>
---
block.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/block.c b/block.c
index ab64027..b84b24e 100644
--- a/block.c
+++ b/block.c
@@ -1122,6 +1122,8 @@ void bdrv_set_backing_hd(BlockDriverState *bs,
BlockDriverState *backing_hd)
/* Otherwise we won't be able to commit due to check in bdrv_commit */
bdrv_op_unblock(bs->backing_hd, BLOCK_OP_TYPE_COMMIT,
bs->backing_blocker);
+ bdrv_op_unblock(bs->backing_hd, BLOCK_OP_TYPE_BACKUP_SOURCE,
+ bs->backing_blocker);
out:
bdrv_refresh_limits(bs);
}
--
1.9.2
- Re: [Qemu-devel] [PATCH v19 07/16] block: Add backing_blocker in BlockDriverState, (continued)
[Qemu-devel] [PATCH v19 08/16] block: Parse "backing" option to reference existing BDS, Fam Zheng, 2014/05/11
[Qemu-devel] [PATCH v19 09/16] block: Support dropping active in bdrv_drop_intermediate, Fam Zheng, 2014/05/11
[Qemu-devel] [PATCH v19 10/16] stream: Use bdrv_drop_intermediate and drop close_unused_images, Fam Zheng, 2014/05/11
[Qemu-devel] [PATCH v19 11/16] commit: Use bdrv_drop_intermediate, Fam Zheng, 2014/05/11
[Qemu-devel] [PATCH v19 12/16] qmp: Add command 'blockdev-backup', Fam Zheng, 2014/05/11
[Qemu-devel] [PATCH v19 13/16] block: Allow backup on referenced named BlockDriverState,
Fam Zheng <=
[Qemu-devel] [PATCH v19 14/16] block: Add blockdev-backup to transaction, Fam Zheng, 2014/05/11
[Qemu-devel] [PATCH v19 15/16] qemu-iotests: Test blockdev-backup in 055, Fam Zheng, 2014/05/11
[Qemu-devel] [PATCH v19 16/16] qemu-iotests: Image fleecing test case 089, Fam Zheng, 2014/05/11