NFSRDMA test branch update to 3.16-rc6

NFSRDMA test branch update to 3.16-rc6

[Steve Wise]

 Hey all,
 
 I've updated the for-test branch of git://git.linux-nfs.org/projects/swise/linux.git.  It
is based on tag v3.16-rc6 and has these additional patches including v4 of Chuck's client
series:

[swise@build linux]$ git shortlog v3.16-rc6.. stevo-nfs/for-test
Chuck Lever (23):
      xprtrdma: Fix panic in rpcrdma_register_frmr_external()
      xprtrdma: Protect ia->ri_id when unmapping/invalidating MRs
      xprtrdma: Limit data payload size for ALLPHYSICAL
      xprtrdma: Update rkeys after transport reconnect
      xprtrdma: On disconnect, don't ignore pending CQEs
      xprtrdma: Don't invalidate FRMRs if registration fails
      xprtrdma: Unclutter struct rpcrdma_mr_seg
      xprtrdma: Back off rkey when FAST_REG_MR fails
      xprtrdma: Chain together all MWs in same buffer pool
      xprtrdma: Properly handle exhaustion of the rb_mws list
      xprtrdma: Reset FRMRs when FAST_REG_MR is flushed by a disconnect
      xprtrdma: Reset FRMRs after a flushed LOCAL_INV Work Request
      xprtrdma: Don't post a LOCAL_INV in rpcrdma_register_frmr_external()
      xprtrdma: Disable completions for FAST_REG_MR Work Requests
      xprtrdma: Disable completions for LOCAL_INV Work Requests
      xprtrdma: Rename frmr_wr
      xprtrdma: Allocate each struct rpcrdma_mw separately
      xprtrdma: Schedule reply tasklet once per upcall
      xprtrdma: Make rpcrdma_ep_disconnect() return void
      xprtrdma: Remove RPCRDMA_PERSISTENT_REGISTRATION macro
      xprtrdma: Handle additional connection events
      [v2,1/2] svcrdma: Increase credit limit to 32
      [v2,2/2] svcrdma: Add zero padding if the client doesn't send it

Steve Wise (1):
      svcrdma: send_write() must not overflow the device's max sge