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authorChuck Lever <chuck.lever@oracle.com>2018-03-27 16:53:54 +0200
committerJ. Bruce Fields <bfields@redhat.com>2018-04-03 21:08:15 +0200
commitfff4080b2f1389ecf3028d72eb70e1837df48b01 (patch)
treea5d1cc9ebca0828441b4196c789fb68b3133c242 /fs/nfsd/trace.h
parentnfsd: Add I/O trace points in the NFSv4 read proc (diff)
downloadlinux-fff4080b2f1389ecf3028d72eb70e1837df48b01.tar.xz
linux-fff4080b2f1389ecf3028d72eb70e1837df48b01.zip
nfsd: Trace NFSv4 COMPOUND execution
This helps record the identity and timing of the ops in each NFSv4 COMPOUND, replacing dprintk calls that did much the same thing. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'fs/nfsd/trace.h')
-rw-r--r--fs/nfsd/trace.h39
1 files changed, 39 insertions, 0 deletions
diff --git a/fs/nfsd/trace.h b/fs/nfsd/trace.h
index a8bbd9d00a9e..80933e4334d8 100644
--- a/fs/nfsd/trace.h
+++ b/fs/nfsd/trace.h
@@ -11,6 +11,45 @@
#include <linux/tracepoint.h>
#include "nfsfh.h"
+TRACE_EVENT(nfsd_compound,
+ TP_PROTO(const struct svc_rqst *rqst,
+ u32 args_opcnt),
+ TP_ARGS(rqst, args_opcnt),
+ TP_STRUCT__entry(
+ __field(u32, xid)
+ __field(u32, args_opcnt)
+ ),
+ TP_fast_assign(
+ __entry->xid = be32_to_cpu(rqst->rq_xid);
+ __entry->args_opcnt = args_opcnt;
+ ),
+ TP_printk("xid=0x%08x opcnt=%u",
+ __entry->xid, __entry->args_opcnt)
+)
+
+TRACE_EVENT(nfsd_compound_status,
+ TP_PROTO(u32 args_opcnt,
+ u32 resp_opcnt,
+ __be32 status,
+ const char *name),
+ TP_ARGS(args_opcnt, resp_opcnt, status, name),
+ TP_STRUCT__entry(
+ __field(u32, args_opcnt)
+ __field(u32, resp_opcnt)
+ __field(int, status)
+ __string(name, name)
+ ),
+ TP_fast_assign(
+ __entry->args_opcnt = args_opcnt;
+ __entry->resp_opcnt = resp_opcnt;
+ __entry->status = be32_to_cpu(status);
+ __assign_str(name, name);
+ ),
+ TP_printk("op=%u/%u %s status=%d",
+ __entry->resp_opcnt, __entry->args_opcnt,
+ __get_str(name), __entry->status)
+)
+
DECLARE_EVENT_CLASS(nfsd_io_class,
TP_PROTO(struct svc_rqst *rqstp,
struct svc_fh *fhp,