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block-backend: Add blk_set_bs()

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It allows changing the BlockDriverState that a BlockBackend points to.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Kevin Wolf 2015-09-17 13:01:50 +02:00
parent 439db28cf9
commit a2d6190048
2 changed files with 19 additions and 0 deletions
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2
include/block/block_int.h
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@ -659,6 +659,8 @@ void backup_start(BlockDriverState *bs, BlockDriverState *target,
BlockCompletionFunc *cb, void *opaque,
Error **errp);
void blk_set_bs(BlockBackend *blk, BlockDriverState *bs);
void blk_dev_change_media_cb(BlockBackend *blk, bool load);
bool blk_dev_has_removable_media(BlockBackend *blk);
void blk_dev_eject_request(BlockBackend *blk, bool force);