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| author | Chuck Lever <chuck.lever@oracle.com> | 2018-03-27 10:53:54 -0400 |
|---|---|---|
| committer | J. Bruce Fields <bfields@redhat.com> | 2018-04-03 15:08:15 -0400 |
| commit | fff4080b2f1389ecf3028d72eb70e1837df48b01 (patch) | |
| tree | a5d1cc9ebca0828441b4196c789fb68b3133c242 | |
| parent | 87c5942e8fae81ac296267654a047eb2db81592b (diff) | |
| download | linux-stable-fff4080b2f1389ecf3028d72eb70e1837df48b01.tar.gz linux-stable-fff4080b2f1389ecf3028d72eb70e1837df48b01.tar.bz2 linux-stable-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>
| -rw-r--r-- | fs/nfsd/nfs4proc.c | 9 | ||||
| -rw-r--r-- | fs/nfsd/trace.h | 39 |
2 files changed, 42 insertions, 6 deletions
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c index 250e0c550fd8..c6157ece46b1 100644 --- a/fs/nfsd/nfs4proc.c +++ b/fs/nfsd/nfs4proc.c @@ -1721,12 +1721,10 @@ nfsd4_proc_compound(struct svc_rqst *rqstp) goto encode_op; } + trace_nfsd_compound(rqstp, args->opcnt); while (!status && resp->opcnt < args->opcnt) { op = &args->ops[resp->opcnt++]; - dprintk("nfsv4 compound op #%d/%d: %d (%s)\n", - resp->opcnt, args->opcnt, op->opnum, - nfsd4_op_name(op->opnum)); /* * The XDR decode routines may have pre-set op->status; * for example, if there is a miscellaneous XDR error @@ -1800,9 +1798,8 @@ encode_op: status = op->status; } - dprintk("nfsv4 compound op %p opcnt %d #%d: %d: status %d\n", - args->ops, args->opcnt, resp->opcnt, op->opnum, - be32_to_cpu(status)); + trace_nfsd_compound_status(args->opcnt, resp->opcnt, status, + nfsd4_op_name(op->opnum)); nfsd4_cstate_clear_replay(cstate); nfsd4_increment_op_stats(op->opnum); 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, |