[PATCH v2 12/12] nfsd: add tracepoint for getattr events

[Jeff Layton <jlayton@xxxxxxxxxx>]

...including STATFS on v2 and FSSTAT on v3. Also, remove the dprintks.

Signed-off-by: Jeff Layton <jlayton@xxxxxxxxxx>
---
 fs/nfsd/nfs3proc.c |  6 ++----
 fs/nfsd/nfs4proc.c |  2 ++
 fs/nfsd/nfsproc.c  |  4 ++--
 fs/nfsd/trace.h    | 27 +++++++++++++++++++++++++++
 4 files changed, 33 insertions(+), 6 deletions(-)

diff --git a/fs/nfsd/nfs3proc.c b/fs/nfsd/nfs3proc.c
index b9ed55a4cdd740bc0aa84b7cbc0e37906d55d666..d2c6902ca9e2496d90ddf13e96b119e415c23cfc 100644
--- a/fs/nfsd/nfs3proc.c
+++ b/fs/nfsd/nfs3proc.c
@@ -70,8 +70,7 @@ nfsd3_proc_getattr(struct svc_rqst *rqstp)
 	struct nfsd_fhandle *argp = rqstp->rq_argp;
 	struct nfsd3_attrstat *resp = rqstp->rq_resp;
 
-	dprintk("nfsd: GETATTR(3)  %s\n",
-		SVCFH_fmt(&argp->fh));
+	trace_nfsd3_proc_getattr(rqstp, &argp->fh);
 
 	fh_copy(&resp->fh, &argp->fh);
 	resp->status = fh_verify(rqstp, &resp->fh, 0,
@@ -665,8 +664,7 @@ nfsd3_proc_fsstat(struct svc_rqst *rqstp)
 	struct nfsd_fhandle *argp = rqstp->rq_argp;
 	struct nfsd3_fsstatres *resp = rqstp->rq_resp;
 
-	dprintk("nfsd: FSSTAT(3)   %s\n",
-				SVCFH_fmt(&argp->fh));
+	trace_nfsd3_proc_fsstat(rqstp, &argp->fh);
 
 	resp->status = nfsd_statfs(rqstp, &argp->fh, &resp->stats, 0);
 	fh_put(&argp->fh);
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index 8dd1233693dc82febe300f6f2714059c718909bc..1b2cf5a2d8265659edaa7177bc778f74c1a532a3 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -955,6 +955,8 @@ nfsd4_getattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
 	struct nfsd4_getattr *getattr = &u->getattr;
 	__be32 status;
 
+	trace_nfsd4_getattr(rqstp, &cstate->current_fh);
+
 	status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP);
 	if (status)
 		return status;
diff --git a/fs/nfsd/nfsproc.c b/fs/nfsd/nfsproc.c
index ce3f1ca636f79687e65077effcc0588639d9366d..35b9f79f077adce4499c7f52244d69da8f5090c4 100644
--- a/fs/nfsd/nfsproc.c
+++ b/fs/nfsd/nfsproc.c
@@ -55,7 +55,7 @@ nfsd_proc_getattr(struct svc_rqst *rqstp)
 	struct nfsd_fhandle *argp = rqstp->rq_argp;
 	struct nfsd_attrstat *resp = rqstp->rq_resp;
 
-	dprintk("nfsd: GETATTR  %s\n", SVCFH_fmt(&argp->fh));
+	trace_nfsd_proc_getattr(rqstp, &argp->fh);
 
 	fh_copy(&resp->fh, &argp->fh);
 	resp->status = fh_verify(rqstp, &resp->fh, 0,
@@ -631,7 +631,7 @@ nfsd_proc_statfs(struct svc_rqst *rqstp)
 	struct nfsd_fhandle *argp = rqstp->rq_argp;
 	struct nfsd_statfsres *resp = rqstp->rq_resp;
 
-	dprintk("nfsd: STATFS   %s\n", SVCFH_fmt(&argp->fh));
+	trace_nfsd_proc_statfs(rqstp, &argp->fh);
 
 	resp->status = nfsd_statfs(rqstp, &argp->fh, &resp->stats,
 				   NFSD_MAY_BYPASS_GSS_ON_ROOT);
diff --git a/fs/nfsd/trace.h b/fs/nfsd/trace.h
index 1d48a37dd33fb4c6e338534d576bcc8fd1a8f54d..ffe16a7ab1f24db999763bcc220e31cf8035d412 100644
--- a/fs/nfsd/trace.h
+++ b/fs/nfsd/trace.h
@@ -2606,6 +2606,33 @@ DEFINE_NFSD_VFS_READDIR_EVENT(nfsd3_proc_readdir);
 DEFINE_NFSD_VFS_READDIR_EVENT(nfsd3_proc_readdirplus);
 DEFINE_NFSD_VFS_READDIR_EVENT(nfsd4_readdir);
 
+DECLARE_EVENT_CLASS(nfsd_vfs_getattr_class,
+	TP_PROTO(struct svc_rqst *rqstp,
+		 struct svc_fh *fhp),
+	TP_ARGS(rqstp, fhp),
+	TP_STRUCT__entry(
+		SVC_RQST_ENDPOINT_FIELDS(rqstp)
+		__field(u32, fh_hash)
+	),
+	TP_fast_assign(
+		SVC_RQST_ENDPOINT_ASSIGNMENTS(rqstp);
+		__entry->fh_hash = knfsd_fh_hash(&fhp->fh_handle);
+	),
+	TP_printk("xid=0x%08x fh_hash=0x%08x",
+		  __entry->xid, __entry->fh_hash)
+);
+
+#define DEFINE_NFSD_VFS_GETATTR_EVENT(__name)					\
+	DEFINE_EVENT(nfsd_vfs_getattr_class, __name,				\
+		     TP_PROTO(struct svc_rqst *rqstp, struct svc_fh *fhp),	\
+		     TP_ARGS(rqstp, fhp))
+
+DEFINE_NFSD_VFS_GETATTR_EVENT(nfsd_proc_getattr);
+DEFINE_NFSD_VFS_GETATTR_EVENT(nfsd_proc_statfs);
+DEFINE_NFSD_VFS_GETATTR_EVENT(nfsd3_proc_getattr);
+DEFINE_NFSD_VFS_GETATTR_EVENT(nfsd3_proc_fsstat);
+DEFINE_NFSD_VFS_GETATTR_EVENT(nfsd4_getattr);
+
 #endif /* _NFSD_TRACE_H */
 
 #undef TRACE_INCLUDE_PATH

-- 
2.49.0