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authorChuck Lever <chuck.lever@oracle.com>2019-10-17 20:31:27 +0200
committerAnna Schumaker <Anna.Schumaker@Netapp.com>2019-10-24 16:30:40 +0200
commitb5cde6aa882dfb40a2b29c1c7371fdc3655c51ce (patch)
treef0876ea6e3fa94a420fbe2eb68cdedcd6868f113 /net/sunrpc/xprtrdma/rpc_rdma.c
parentxprtrdma: Remove rpcrdma_sendctx::sc_xprt (diff)
downloadlinux-b5cde6aa882dfb40a2b29c1c7371fdc3655c51ce.tar.xz
linux-b5cde6aa882dfb40a2b29c1c7371fdc3655c51ce.zip
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>
Diffstat (limited to 'net/sunrpc/xprtrdma/rpc_rdma.c')
-rw-r--r--net/sunrpc/xprtrdma/rpc_rdma.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/net/sunrpc/xprtrdma/rpc_rdma.c b/net/sunrpc/xprtrdma/rpc_rdma.c
index 7b1358284242..1941b2261ca5 100644
--- a/net/sunrpc/xprtrdma/rpc_rdma.c
+++ b/net/sunrpc/xprtrdma/rpc_rdma.c
@@ -564,6 +564,7 @@ static void rpcrdma_sendctx_done(struct kref *kref)
*/
void rpcrdma_sendctx_unmap(struct rpcrdma_sendctx *sc)
{
+ struct rpcrdma_regbuf *rb = sc->sc_req->rl_sendbuf;
struct ib_sge *sge;
if (!sc->sc_unmap_count)
@@ -575,7 +576,7 @@ void rpcrdma_sendctx_unmap(struct rpcrdma_sendctx *sc)
*/
for (sge = &sc->sc_sges[2]; sc->sc_unmap_count;
++sge, --sc->sc_unmap_count)
- ib_dma_unmap_page(sc->sc_device, sge->addr, sge->length,
+ ib_dma_unmap_page(rdmab_device(rb), sge->addr, sge->length,
DMA_TO_DEVICE);
kref_put(&sc->sc_req->rl_kref, rpcrdma_sendctx_done);
@@ -625,7 +626,6 @@ static bool rpcrdma_prepare_msg_sges(struct rpcrdma_xprt *r_xprt,
*/
if (!rpcrdma_regbuf_dma_map(r_xprt, rb))
goto out_regbuf;
- sc->sc_device = rdmab_device(rb);
sge_no = 1;
sge[sge_no].addr = rdmab_addr(rb);
sge[sge_no].length = xdr->head[0].iov_len;