xprtrdma: Remove rpcrdma_sendctx::sc_device
Micro-optimization: Save eight bytes in a frequently allocated structure. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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f995879ec4
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b5cde6aa88
net/sunrpc/xprtrdma
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@ -564,6 +564,7 @@ static void rpcrdma_sendctx_done(struct kref *kref)
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*/
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void rpcrdma_sendctx_unmap(struct rpcrdma_sendctx *sc)
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{
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struct rpcrdma_regbuf *rb = sc->sc_req->rl_sendbuf;
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struct ib_sge *sge;
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if (!sc->sc_unmap_count)
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@ -575,7 +576,7 @@ void rpcrdma_sendctx_unmap(struct rpcrdma_sendctx *sc)
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*/
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for (sge = &sc->sc_sges[2]; sc->sc_unmap_count;
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++sge, --sc->sc_unmap_count)
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ib_dma_unmap_page(sc->sc_device, sge->addr, sge->length,
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ib_dma_unmap_page(rdmab_device(rb), sge->addr, sge->length,
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DMA_TO_DEVICE);
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kref_put(&sc->sc_req->rl_kref, rpcrdma_sendctx_done);
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@ -625,7 +626,6 @@ static bool rpcrdma_prepare_msg_sges(struct rpcrdma_xprt *r_xprt,
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*/
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if (!rpcrdma_regbuf_dma_map(r_xprt, rb))
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goto out_regbuf;
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sc->sc_device = rdmab_device(rb);
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sge_no = 1;
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sge[sge_no].addr = rdmab_addr(rb);
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sge[sge_no].length = xdr->head[0].iov_len;
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@ -221,7 +221,6 @@ struct rpcrdma_req;
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struct rpcrdma_sendctx {
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struct ib_send_wr sc_wr;
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struct ib_cqe sc_cqe;
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struct ib_device *sc_device;
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struct rpcrdma_req *sc_req;
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unsigned int sc_unmap_count;
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struct ib_sge sc_sges[];
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