svcrdma: Retain the page backing rq_res.head[0].iov_base
svc_rdma_sendto() now waits for the NIC hardware to finish with
the pages backing rq_res. We still have to release the page array
in some cases, but now it's always safe to immediately re-use the
page backing rq_res's head buffer.
Signed-off-by:
Chuck Lever <chuck.lever@oracle.com>
parent
57990067