SUNRPC: svc_tcp_recvfrom cleanup
Minor cleanup in preparation for later patches.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c
index 7a3e4bf..733c2f6 100644
--- a/net/sunrpc/svcsock.c
+++ b/net/sunrpc/svcsock.c
@@ -893,6 +893,7 @@
static int svc_tcp_recv_record(struct svc_sock *svsk, struct svc_rqst *rqstp)
{
struct svc_serv *serv = svsk->sk_xprt.xpt_server;
+ unsigned int want;
int len;
if (test_and_clear_bit(XPT_CHNGBUF, &svsk->sk_xprt.xpt_flags))
@@ -915,9 +916,9 @@
clear_bit(XPT_DATA, &svsk->sk_xprt.xpt_flags);
if (svsk->sk_tcplen < sizeof(rpc_fraghdr)) {
- int want = sizeof(rpc_fraghdr) - svsk->sk_tcplen;
struct kvec iov;
+ want = sizeof(rpc_fraghdr) - svsk->sk_tcplen;
iov.iov_base = ((char *) &svsk->sk_reclen) + svsk->sk_tcplen;
iov.iov_len = want;
if ((len = svc_recvfrom(rqstp, &iov, 1, want)) < 0)
@@ -1040,8 +1041,9 @@
struct svc_serv *serv = svsk->sk_xprt.xpt_server;
int len;
struct kvec *vec;
- int pnum, vlen;
struct rpc_rqst *req = NULL;
+ unsigned int vlen;
+ int pnum;
dprintk("svc: tcp_recv %p data %d conn %d close %d\n",
svsk, test_bit(XPT_DATA, &svsk->sk_xprt.xpt_flags),
@@ -1072,7 +1074,7 @@
}
pnum = 1;
- while (vlen < len) {
+ while (vlen < svsk->sk_reclen - 8) {
vec[pnum].iov_base = (req) ?
page_address(req->rq_private_buf.pages[pnum - 1]) :
page_address(rqstp->rq_pages[pnum]);
@@ -1083,29 +1085,23 @@
rqstp->rq_respages = &rqstp->rq_pages[pnum];
/* Now receive data */
- len = svc_recvfrom(rqstp, vec, pnum, len);
+ len = svc_recvfrom(rqstp, vec, pnum, svsk->sk_reclen - 8);
if (len < 0)
goto err_again;
- /*
- * Account for the 8 bytes we read earlier
- */
- len += 8;
-
if (req) {
- xprt_complete_rqst(req->rq_task, len);
- len = 0;
+ xprt_complete_rqst(req->rq_task, svsk->sk_reclen);
+ rqstp->rq_arg.len = 0;
goto out;
}
- dprintk("svc: TCP complete record (%d bytes)\n", len);
- rqstp->rq_arg.len = len;
+ dprintk("svc: TCP complete record (%d bytes)\n", svsk->sk_reclen);
+ rqstp->rq_arg.len = svsk->sk_reclen;
rqstp->rq_arg.page_base = 0;
- if (len <= rqstp->rq_arg.head[0].iov_len) {
- rqstp->rq_arg.head[0].iov_len = len;
+ if (rqstp->rq_arg.len <= rqstp->rq_arg.head[0].iov_len) {
+ rqstp->rq_arg.head[0].iov_len = rqstp->rq_arg.len;
rqstp->rq_arg.page_len = 0;
- } else {
- rqstp->rq_arg.page_len = len - rqstp->rq_arg.head[0].iov_len;
- }
+ } else
+ rqstp->rq_arg.page_len = rqstp->rq_arg.len - rqstp->rq_arg.head[0].iov_len;
rqstp->rq_xprt_ctxt = NULL;
rqstp->rq_prot = IPPROTO_TCP;
@@ -1123,7 +1119,7 @@
if (serv->sv_stats)
serv->sv_stats->nettcpcnt++;
- return len;
+ return rqstp->rq_arg.len;
err_again:
if (len == -EAGAIN) {