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authorChuck Lever <chuck.lever@oracle.com>2020-11-21 17:36:42 +0100
committerChuck Lever <chuck.lever@oracle.com>2020-11-30 20:46:35 +0100
commit08281341be8ebc97ee47999812bcf411942baa1e (patch)
tree57e98af557a343f204ebd2d966c6921a722c09a8 /fs/nfsd/trace.h
parentNFSD: Add tracepoints in nfsd_dispatch() (diff)
downloadlinux-08281341be8ebc97ee47999812bcf411942baa1e.tar.xz
linux-08281341be8ebc97ee47999812bcf411942baa1e.zip
NFSD: Add tracepoints in nfsd4_decode/encode_compound()
For troubleshooting purposes, record failures to decode NFSv4 operation arguments and encode operation results. trace_nfsd_compound_decode_err() replaces the dprintk() call sites that are embedded in READ_* macros that are about to be removed. Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Diffstat (limited to 'fs/nfsd/trace.h')
-rw-r--r--fs/nfsd/trace.h68
1 files changed, 68 insertions, 0 deletions
diff --git a/fs/nfsd/trace.h b/fs/nfsd/trace.h
index 0bf1707bd846..92a0973dd671 100644
--- a/fs/nfsd/trace.h
+++ b/fs/nfsd/trace.h
@@ -28,6 +28,24 @@
rqstp->rq_xprt->xpt_remotelen); \
} while (0);
+#define NFSD_TRACE_PROC_RES_FIELDS \
+ __field(unsigned int, netns_ino) \
+ __field(u32, xid) \
+ __field(unsigned long, status) \
+ __array(unsigned char, server, sizeof(struct sockaddr_in6)) \
+ __array(unsigned char, client, sizeof(struct sockaddr_in6))
+
+#define NFSD_TRACE_PROC_RES_ASSIGNMENTS(error) \
+ do { \
+ __entry->netns_ino = SVC_NET(rqstp)->ns.inum; \
+ __entry->xid = be32_to_cpu(rqstp->rq_xid); \
+ __entry->status = be32_to_cpu(error); \
+ memcpy(__entry->server, &rqstp->rq_xprt->xpt_local, \
+ rqstp->rq_xprt->xpt_locallen); \
+ memcpy(__entry->client, &rqstp->rq_xprt->xpt_remote, \
+ rqstp->rq_xprt->xpt_remotelen); \
+ } while (0);
+
TRACE_EVENT(nfsd_garbage_args_err,
TP_PROTO(
const struct svc_rqst *rqstp
@@ -127,6 +145,56 @@ TRACE_EVENT(nfsd_compound_status,
__get_str(name), __entry->status)
)
+TRACE_EVENT(nfsd_compound_decode_err,
+ TP_PROTO(
+ const struct svc_rqst *rqstp,
+ u32 args_opcnt,
+ u32 resp_opcnt,
+ u32 opnum,
+ __be32 status
+ ),
+ TP_ARGS(rqstp, args_opcnt, resp_opcnt, opnum, status),
+ TP_STRUCT__entry(
+ NFSD_TRACE_PROC_RES_FIELDS
+
+ __field(u32, args_opcnt)
+ __field(u32, resp_opcnt)
+ __field(u32, opnum)
+ ),
+ TP_fast_assign(
+ NFSD_TRACE_PROC_RES_ASSIGNMENTS(status)
+
+ __entry->args_opcnt = args_opcnt;
+ __entry->resp_opcnt = resp_opcnt;
+ __entry->opnum = opnum;
+ ),
+ TP_printk("op=%u/%u opnum=%u status=%lu",
+ __entry->resp_opcnt, __entry->args_opcnt,
+ __entry->opnum, __entry->status)
+);
+
+TRACE_EVENT(nfsd_compound_encode_err,
+ TP_PROTO(
+ const struct svc_rqst *rqstp,
+ u32 opnum,
+ __be32 status
+ ),
+ TP_ARGS(rqstp, opnum, status),
+ TP_STRUCT__entry(
+ NFSD_TRACE_PROC_RES_FIELDS
+
+ __field(u32, opnum)
+ ),
+ TP_fast_assign(
+ NFSD_TRACE_PROC_RES_ASSIGNMENTS(status)
+
+ __entry->opnum = opnum;
+ ),
+ TP_printk("opnum=%u status=%lu",
+ __entry->opnum, __entry->status)
+);
+
+
DECLARE_EVENT_CLASS(nfsd_fh_err_class,
TP_PROTO(struct svc_rqst *rqstp,
struct svc_fh *fhp,