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authorChuck Lever <chuck.lever@oracle.com>2016-09-15 10:55:12 -0400
committerAnna Schumaker <Anna.Schumaker@Netapp.com>2016-09-19 13:08:37 -0400
commitb9c5bc03be6aae41990efd09f83cf70a89ac9f4b (patch)
tree03209c6558834b688ace36b3e982b45355301afb /net
parenteb342e9a38a5ad79866fec2df2d3ca4592bc501b (diff)
downloadlinux-b9c5bc03be6aae41990efd09f83cf70a89ac9f4b.tar.bz2
SUNRPC: Refactor rpc_xdr_buf_init()
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>
Diffstat (limited to 'net')
-rw-r--r--net/sunrpc/backchannel_rqst.c8
-rw-r--r--net/sunrpc/clnt.c24
-rw-r--r--net/sunrpc/xprtrdma/backchannel.c12
3 files changed, 8 insertions, 36 deletions
diff --git a/net/sunrpc/backchannel_rqst.c b/net/sunrpc/backchannel_rqst.c
index 229956bf8457..ac701c28f44f 100644
--- a/net/sunrpc/backchannel_rqst.c
+++ b/net/sunrpc/backchannel_rqst.c
@@ -76,13 +76,7 @@ static int xprt_alloc_xdr_buf(struct xdr_buf *buf, gfp_t gfp_flags)
page = alloc_page(gfp_flags);
if (page == NULL)
return -ENOMEM;
- buf->head[0].iov_base = page_address(page);
- buf->head[0].iov_len = PAGE_SIZE;
- buf->tail[0].iov_base = NULL;
- buf->tail[0].iov_len = 0;
- buf->page_len = 0;
- buf->len = 0;
- buf->buflen = PAGE_SIZE;
+ xdr_buf_init(buf, page_address(page), PAGE_SIZE);
return 0;
}
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index b614cb1356b9..6481986be7a7 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -1746,18 +1746,6 @@ rpc_task_force_reencode(struct rpc_task *task)
task->tk_rqstp->rq_bytes_sent = 0;
}
-static inline void
-rpc_xdr_buf_init(struct xdr_buf *buf, void *start, size_t len)
-{
- buf->head[0].iov_base = start;
- buf->head[0].iov_len = len;
- buf->tail[0].iov_len = 0;
- buf->page_len = 0;
- buf->flags = 0;
- buf->len = 0;
- buf->buflen = len;
-}
-
/*
* 3. Encode arguments of an RPC call
*/
@@ -1770,12 +1758,12 @@ rpc_xdr_encode(struct rpc_task *task)
dprint_status(task);
- rpc_xdr_buf_init(&req->rq_snd_buf,
- req->rq_buffer,
- req->rq_callsize);
- rpc_xdr_buf_init(&req->rq_rcv_buf,
- (char *)req->rq_buffer + req->rq_callsize,
- req->rq_rcvsize);
+ xdr_buf_init(&req->rq_snd_buf,
+ req->rq_buffer,
+ req->rq_callsize);
+ xdr_buf_init(&req->rq_rcv_buf,
+ (char *)req->rq_buffer + req->rq_callsize,
+ req->rq_rcvsize);
p = rpc_encode_header(task);
if (p == NULL) {
diff --git a/net/sunrpc/xprtrdma/backchannel.c b/net/sunrpc/xprtrdma/backchannel.c
index 5f60ab2f858a..d3cfaf281e55 100644
--- a/net/sunrpc/xprtrdma/backchannel.c
+++ b/net/sunrpc/xprtrdma/backchannel.c
@@ -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: