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SUNRPC: Make the svc_authenticate tracepoint conditional 

Clean up: Simplify the tracepoint's only call site.

Also, I noticed that when svc_authenticate() returns SVC_COMPLETE,
it leaves rq_auth_stat set to an error value. That doesn't need to
be recorded in the trace log.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
This commit is contained in:
Chuck Lever 2022-11-26 15:55:36 -05:00 committed by Chuck Lever
parent 9315564747
commit c65d9df0c4
2 changed files with 4 additions and 3 deletions
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4
include/trace/events/sunrpc.h
View File

@ -1666,11 +1666,13 @@ TRACE_DEFINE_ENUM(SVC_COMPLETE);
#define SVC_RQST_ENDPOINT_VARARGS \
__entry->xid, __get_sockaddr(server), __get_sockaddr(client)
TRACE_EVENT(svc_authenticate,
TRACE_EVENT_CONDITION(svc_authenticate,
TP_PROTO(const struct svc_rqst *rqst, int auth_res),
TP_ARGS(rqst, auth_res),
TP_CONDITION(auth_res != SVC_OK && auth_res != SVC_COMPLETE),
TP_STRUCT__entry(
SVC_RQST_ENDPOINT_FIELDS(rqst)

3
net/sunrpc/svc.c
View File

@ -1280,8 +1280,7 @@ svc_process_common(struct svc_rqst *rqstp, struct kvec *argv, struct kvec *resv)
/* Also give the program a chance to reject this call: */
if (auth_res == SVC_OK && progp)
auth_res = progp->pg_authenticate(rqstp);
if (auth_res != SVC_OK)
trace_svc_authenticate(rqstp, auth_res);
trace_svc_authenticate(rqstp, auth_res);
switch (auth_res) {
case SVC_OK:
break;