[pnfs] [PATCH 0/3] nfs41: Enable backchannel of different NFSv4 versions to coexist

[Ricardo Labiaga]

The following patches fix problems with the backchannel initialization
introduced in 2.6.26.  They also enable v4 and v4.1 callback services to
run concurrently.

[PATCH 1/3] [SQUASHME] nfs41: Check that CB_SEQUENCE_CB is in position 0
[PATCH 2/3] nfs41: Allow NFSv4 and NFSv4.1 callback services to coexist
[PATCH 3/3] nfs41: callback_svc needs to be set for v4 and v4.1 mounts