On 08/21/2013 03:57 AM, Eric Blake wrote:
On 08/20/2013 01:54 AM, Guannan Ren wrote:
When backing files of a disk file are stored in NFS shared folder,
qemu process requires at least the read permission.
But in some rare situation, these backing files can not even be read
If so, we should treat the diskchains as broken.
This patch add a checking for this, report negative in such case.
We have been historically bitten by changes to this code. I think we
need to patch tests/virstoragetest.c (and/or add a new test) before
accepting this change, to make sure that we are testing the behavior we
want.
Okay, will do it soon.
Thanks
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