[Xen-devel] [PATCH] ioemu: need probe backing file format

[Wei Kong <weikong.cn@xxxxxxxxx>]

Revert changeset 17646

Due to qcow2 also has backing file.

Signed-off-by: Wei Kong <weikong.cn@gmail.com>

--- xen-3.4.0-testing/tools/ioemu-remote/block.cÂÂ 2009-08-18 18:35:42.000000000 +0800
+++ xen-3.4.0-testing/tools/ioemu-remote/block.cÂÂÂÂÂÂÂ 2009-08-18 18:35:46.000000000 +0800
@@ -450,7 +450,7 @@ int bdrv_open2(BlockDriverState *bs, con
ÂÂÂÂÂÂÂÂ bs->backing_hd = bdrv_new("");
ÂÂÂÂÂÂÂÂ path_combine(backing_filename, sizeof(backing_filename),
ÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂ filename, bs->backing_file);

-ÂÂÂÂÂÂÂ ret = bdrv_open2(bs->backing_hd, backing_filename, open_flags, &bdrv_raw);
+ÂÂÂÂÂÂÂ ret = bdrv_open(bs->backing_hd, backing_filename, open_flags, &bdrv_raw);
ÂÂÂÂÂÂÂÂ if (ret < 0) {
ÂÂÂÂÂÂÂÂÂÂÂÂ bdrv_close(bs);

ÂÂÂÂÂÂÂÂÂÂÂÂ return ret;

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