dream.net> 1256669450 -0700
committer Sage Weil <sage@newdream.net> 1256669823 -0700

ceph: allocate and parse mount args before client instance

This simplifies much of the error handling during mount.  It also means
that we have the mount args before client creation, and we can initialize
based on those options.

Signed-off-by: Sage Weil <sage@newdream.net>
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