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Add new block driver interface to add/delete a BDS's child

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In some cases, we want to take a quorum child offline, and take
another child online.

Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Signed-off-by: Changlong Xie <xiecl.fnst@cn.fujitsu.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Message-id: 1462865799-19402-2-git-send-email-xiecl.fnst@cn.fujitsu.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
This commit is contained in:
Wen Congyang 2016-05-10 15:36:37 +08:00 • committed by Max Reitz
parent 263a6f4c3a
commit e06018ad28
3 changed files with 58 additions and 0 deletions
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4
include/block/block.h
View file

@ -542,4 +542,8 @@ void bdrv_drained_begin(BlockDriverState *bs);
*/
void bdrv_drained_end(BlockDriverState *bs);
void bdrv_add_child(BlockDriverState *parent, BlockDriverState *child,
Error **errp);
void bdrv_del_child(BlockDriverState *parent, BdrvChild *child, Error **errp);
#endif

5
include/block/block_int.h
View file

@ -314,6 +314,11 @@ struct BlockDriver {
*/
void (*bdrv_drain)(BlockDriverState *bs);
void (*bdrv_add_child)(BlockDriverState *parent, BlockDriverState *child,
Error **errp);
void (*bdrv_del_child)(BlockDriverState *parent, BdrvChild *child,
Error **errp);
QLIST_ENTRY(BlockDriver) list;
};