SUNRPC: Revert cc93ce9529a6 ("svcrdma: Retain the page backing rq_res.head[0].iov_base")

Pre-requisite for releasing pages in the send completion handler.
Reverted by hand: patch -R would not apply cleanly.

Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>

diff --git a/net/sunrpc/xprtrdma/svc_rdma_sendto.c b/net/sunrpc/xprtrdma/svc_rdma_sendto.c
index a35d1e0..8e7ccef 100644 (file)
--- a/net/sunrpc/xprtrdma/svc_rdma_sendto.c
+++ b/net/sunrpc/xprtrdma/svc_rdma_sendto.c
@@ -975,11 +975,6 @@ int svc_rdma_sendto(struct svc_rqst *rqstp)
        ret = svc_rdma_send_reply_msg(rdma, sctxt, rctxt, rqstp);
        if (ret < 0)
                goto put_ctxt;
-
-       /* Prevent svc_xprt_release() from releasing the page backing
-        * rq_res.head[0].iov_base. It's no longer being accessed by
-        * the I/O device. */
-       rqstp->rq_respages++;
        return 0;
 
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