xprtrdma: Remove rpcrdma_buffer_get_req_locked()

Clean up. There is only one call-site for this helper, and it can be
simplified by using list_first_entry_or_null().

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
This commit is contained in:
Chuck Lever 2018-05-04 15:35:31 -04:00 • committed by Anna Schumaker
commit e68699cc1a