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SUNRPC: Remove svc_rqst::rq_xprt_hlen 

Clean up: This field is now always set to zero.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
This commit is contained in:
Chuck Lever 2022-04-06 14:38:59 -04:00
parent 4af8b42e56
commit 983084b267
5 changed files with 5 additions and 13 deletions
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2
include/linux/sunrpc/svc.h
View File

@ -257,7 +257,6 @@ struct svc_rqst {
void * rq_xprt_ctxt; /* transport specific context ptr */
struct svc_deferred_req*rq_deferred; /* deferred request we are replaying */
size_t rq_xprt_hlen; /* xprt header len */
struct xdr_buf rq_arg;
struct xdr_stream rq_arg_stream;
struct xdr_stream rq_res_stream;
@ -397,7 +396,6 @@ struct svc_deferred_req {
size_t daddrlen;
void *xprt_ctxt;
struct cache_deferred_req handle;
size_t xprt_hlen;
int argslen;
__be32 args[];
};

3
include/trace/events/sunrpc.h
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@ -2020,8 +2020,7 @@ DECLARE_EVENT_CLASS(svc_deferred_event,
TP_fast_assign(
__entry->dr = dr;
__entry->xid = be32_to_cpu(*(__be32 *)(dr->args +
(dr->xprt_hlen>>2)));
__entry->xid = be32_to_cpu(*(__be32 *)dr->args);
__assign_sockaddr(addr, &dr->addr, dr->addrlen);
),

10
net/sunrpc/svc_xprt.c
View File

@ -1230,7 +1230,6 @@ static struct cache_deferred_req *svc_defer(struct cache_req *req)
dr->addrlen = rqstp->rq_addrlen;
dr->daddr = rqstp->rq_daddr;
dr->argslen = rqstp->rq_arg.len >> 2;
dr->xprt_hlen = rqstp->rq_xprt_hlen;
dr->xprt_ctxt = rqstp->rq_xprt_ctxt;
rqstp->rq_xprt_ctxt = NULL;
@ -1258,22 +1257,21 @@ static noinline int svc_deferred_recv(struct svc_rqst *rqstp)
trace_svc_defer_recv(dr);
/* setup iov_base past transport header */
rqstp->rq_arg.head[0].iov_base = dr->args + (dr->xprt_hlen>>2);
rqstp->rq_arg.head[0].iov_base = dr->args;
/* The iov_len does not include the transport header bytes */
rqstp->rq_arg.head[0].iov_len = (dr->argslen<<2) - dr->xprt_hlen;
rqstp->rq_arg.head[0].iov_len = dr->argslen << 2;
rqstp->rq_arg.page_len = 0;
/* The rq_arg.len includes the transport header bytes */
rqstp->rq_arg.len = dr->argslen<<2;
rqstp->rq_arg.len = dr->argslen << 2;
rqstp->rq_prot = dr->prot;
memcpy(&rqstp->rq_addr, &dr->addr, dr->addrlen);
rqstp->rq_addrlen = dr->addrlen;
/* Save off transport header len in case we get deferred again */
rqstp->rq_xprt_hlen = dr->xprt_hlen;
rqstp->rq_daddr = dr->daddr;
rqstp->rq_respages = rqstp->rq_pages;
rqstp->rq_xprt_ctxt = dr->xprt_ctxt;
svc_xprt_received(rqstp->rq_xprt);
return (dr->argslen<<2) - dr->xprt_hlen;
return dr->argslen << 2;
}

2
net/sunrpc/svcsock.c
View File

@ -250,8 +250,6 @@ static ssize_t svc_tcp_read_msg(struct svc_rqst *rqstp, size_t buflen,
ssize_t len;
size_t t;
rqstp->rq_xprt_hlen = 0;
clear_bit(XPT_DATA, &svsk->sk_xprt.xpt_flags);
for (i = 0, t = 0; t < buflen; i++, t += PAGE_SIZE) {

1
net/sunrpc/xprtrdma/svc_rdma_recvfrom.c
View File

@ -831,7 +831,6 @@ int svc_rdma_recvfrom(struct svc_rqst *rqstp)
goto out_err;
if (ret == 0)
goto out_drop;
rqstp->rq_xprt_hlen = 0;
if (svc_rdma_is_reverse_direction_reply(xprt, ctxt))
goto out_backchannel;