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SUNRPC: Refactor rpc_xdr_buf_init()

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Clean up: there is some XDR initialization logic that is common
to the forward channel and backchannel. Move it to an XDR header
so it can be shared.

rpc_rqst::rq_buffer points to a buffer containing big-endian data.
Update its annotation as part of the clean up.

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
2016-09-15 10:55:12 -04:00
committed by Anna Schumaker
parent eb342e9a38
commit b9c5bc03be
5 changed files with 21 additions and 37 deletions
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12
net/sunrpc/xprtrdma/backchannel.c
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@@ -38,7 +38,6 @@ static int rpcrdma_bc_setup_rqst(struct rpcrdma_xprt *r_xprt,
struct rpcrdma_ia *ia = &r_xprt->rx_ia;
struct rpcrdma_regbuf *rb;
struct rpcrdma_req *req;
struct xdr_buf *buf;
size_t size;
req = rpcrdma_create_req(r_xprt);
@@ -60,16 +59,7 @@ static int rpcrdma_bc_setup_rqst(struct rpcrdma_xprt *r_xprt,
req->rl_sendbuf = rb;
/* so that rpcr_to_rdmar works when receiving a request */
rqst->rq_buffer = (void *)req->rl_sendbuf->rg_base;
buf = &rqst->rq_snd_buf;
buf->head[0].iov_base = rqst->rq_buffer;
buf->head[0].iov_len = 0;
buf->tail[0].iov_base = NULL;
buf->tail[0].iov_len = 0;
buf->page_len = 0;
buf->len = 0;
buf->buflen = size;
xdr_buf_init(&rqst->rq_snd_buf, rqst->rq_buffer, size);
return 0;
out_fail: