Aneesh Kumar K.V 99519f0a77 hw/9pfs: Move opt validation to FsDriver callback
This remove all conditional code from common code path and
make opt validation a FSDriver callback.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
2012-01-04 19:51:28 +05:30
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