jcs.org
qemu with hax to log dma reads & writes
jcs.org/2018/11/12/vfio
block: Add blk_make_empty()
Two callers of BlockDriver.bdrv_make_empty() remain that should not call
this method directly. Both do not have access to a BdrvChild, but they
can use a BlockBackend, so we add this function that lets them use it.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20200429141126.85159-4-mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
authored by
Max Reitz
and committed by
Kevin Wolf
2b7bbdbd
6f7a3b53
+12
+10
block/block-backend.c
+10
block/block-backend.c
···
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{
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return blk->root;
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}
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+
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+
int blk_make_empty(BlockBackend *blk, Error **errp)
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+
{
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if (!blk_is_available(blk)) {
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error_setg(errp, "No medium inserted");
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return -ENOMEDIUM;
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+
}
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+
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return bdrv_make_empty(blk->root, errp);
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+
}