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由 Stefan Hajnoczi 提交于
Let's report specific errors so that management tools and users can identify the problem. Two new qerrors are needed: * QERR_DEVICE_HAS_NO_MEDIUM for ENOMEDIUM * QERR_DEVICE_IS_READ_ONLY for EACCES Signed-off-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: NLuiz Capitulino <lcapitulino@redhat.com>
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