From: Josef Bacik <josef@xxxxxxxxxxxxxx>
[ Upstream commit ab42f4d9a26f1723dcfd6c93fcf768032b2bb5e7 ]
We check for the existence of ->sv_stats elsewhere except in the core
processing code. It appears that only nfsd actual exports these values
anywhere, everybody else just has a write only copy of sv_stats in their
svc_program. Add a check for ->sv_stats before every adjustment to
allow us to eliminate the stats struct from all the users who don't
report the stats.
Signed-off-by: Josef Bacik <josef@xxxxxxxxxxxxxx>
Reviewed-by: Jeff Layton <jlayton@xxxxxxxxxx>
Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
net/sunrpc/svc.c | 27 ++++++++++++++++++---------
1 file changed, 18 insertions(+), 9 deletions(-)
--- a/net/sunrpc/svc.c
+++ b/net/sunrpc/svc.c
@@ -1377,7 +1377,8 @@ svc_process_common(struct svc_rqst *rqst
goto err_bad_proc;
/* Syntactic check complete */
- serv->sv_stats->rpccnt++;
+ if (serv->sv_stats)
+ serv->sv_stats->rpccnt++;
trace_svc_process(rqstp, progp->pg_name);
aoffset = xdr_stream_pos(xdr);
@@ -1429,7 +1430,8 @@ err_short_len:
goto close_xprt;
err_bad_rpc:
- serv->sv_stats->rpcbadfmt++;
+ if (serv->sv_stats)
+ serv->sv_stats->rpcbadfmt++;
xdr_stream_encode_u32(xdr, RPC_MSG_DENIED);
xdr_stream_encode_u32(xdr, RPC_MISMATCH);
/* Only RPCv2 supported */
@@ -1440,7 +1442,8 @@ err_bad_rpc:
err_bad_auth:
dprintk("svc: authentication failed (%d)\n",
be32_to_cpu(rqstp->rq_auth_stat));
- serv->sv_stats->rpcbadauth++;
+ if (serv->sv_stats)
+ serv->sv_stats->rpcbadauth++;
/* Restore write pointer to location of reply status: */
xdr_truncate_encode(xdr, XDR_UNIT * 2);
xdr_stream_encode_u32(xdr, RPC_MSG_DENIED);
@@ -1450,7 +1453,8 @@ err_bad_auth:
err_bad_prog:
dprintk("svc: unknown program %d\n", rqstp->rq_prog);
- serv->sv_stats->rpcbadfmt++;
+ if (serv->sv_stats)
+ serv->sv_stats->rpcbadfmt++;
*rqstp->rq_accept_statp = rpc_prog_unavail;
goto sendit;
@@ -1458,7 +1462,8 @@ err_bad_vers:
svc_printk(rqstp, "unknown version (%d for prog %d, %s)\n",
rqstp->rq_vers, rqstp->rq_prog, progp->pg_name);
- serv->sv_stats->rpcbadfmt++;
+ if (serv->sv_stats)
+ serv->sv_stats->rpcbadfmt++;
*rqstp->rq_accept_statp = rpc_prog_mismatch;
/*
@@ -1472,19 +1477,22 @@ err_bad_vers:
err_bad_proc:
svc_printk(rqstp, "unknown procedure (%d)\n", rqstp->rq_proc);
- serv->sv_stats->rpcbadfmt++;
+ if (serv->sv_stats)
+ serv->sv_stats->rpcbadfmt++;
*rqstp->rq_accept_statp = rpc_proc_unavail;
goto sendit;
err_garbage_args:
svc_printk(rqstp, "failed to decode RPC header\n");
- serv->sv_stats->rpcbadfmt++;
+ if (serv->sv_stats)
+ serv->sv_stats->rpcbadfmt++;
*rqstp->rq_accept_statp = rpc_garbage_args;
goto sendit;
err_system_err:
- serv->sv_stats->rpcbadfmt++;
+ if (serv->sv_stats)
+ serv->sv_stats->rpcbadfmt++;
*rqstp->rq_accept_statp = rpc_system_err;
goto sendit;
}
@@ -1536,7 +1544,8 @@ void svc_process(struct svc_rqst *rqstp)
out_baddir:
svc_printk(rqstp, "bad direction 0x%08x, dropping request\n",
be32_to_cpu(*p));
- rqstp->rq_server->sv_stats->rpcbadfmt++;
+ if (rqstp->rq_server->sv_stats)
+ rqstp->rq_server->sv_stats->rpcbadfmt++;
out_drop:
svc_drop(rqstp);
}
Patches currently in stable-queue which might be from kroah.com@xxxxxxxxxxxxxxx are
queue-6.6/nfsd-remove-nfsd_stats-make-th_cnt-a-global-counter.patch
queue-6.6/sunrpc-remove-pg_stats-from-svc_program.patch
queue-6.6/nfsd-make-all-of-the-nfsd-stats-per-network-namespace.patch
queue-6.6/nfsd-stop-setting-pg_stats-for-unused-stats.patch
queue-6.6/sunrpc-don-t-change-sv_stats-if-it-doesn-t-exist.patch
queue-6.6/nfsd-make-svc_stat-per-network-namespace-instead-of-global.patch
queue-6.6/nfsd-fix-frame-size-warning-in-svc_export_parse.patch
queue-6.6/nfsd-rename-nfsd_net_-to-nfsd_stats_.patch
queue-6.6/sunrpc-use-the-struct-net-as-the-svc-proc-private.patch
queue-6.6/sunrpc-pass-in-the-sv_stats-struct-through-svc_create_pooled.patch
queue-6.6/nfsd-rewrite-synopsis-of-nfsd_percpu_counters_init.patch
queue-6.6/nfsd-expose-proc-net-sunrpc-nfsd-in-net-namespaces.patch
