V2.2-dev-10

Signed-off-by: Frank S. Filz <ffilzlnx@mindspring.com>
Retry blocking lock if not granted.
FSAL API: refcount is used as a signed int32, fix its type

Signed-off-by: Dominique Martinet <dominique.martinet@cea.fr>
Merge remote-tracking branch 'marc/relock' into next

Signed-off-by: Frank S. Filz <ffilzlnx@mindspring.com>
Merge remote-tracking branch 'martinetd/next' into next

Signed-off-by: Frank S. Filz <ffilzlnx@mindspring.com>