nfsd: Add tracepoints for exp_find_key() and exp_get_by_name() (cf749f3c) · Commits · 戴 / test

fs/nfsd/export.c

+7 −2

Original line number	Diff line number	Diff line
		@@ -23,6 +23,7 @@
		#include "netns.h"
		#include "pnfs.h"
		#include "filecache.h"
		#include "trace.h"

		#define NFSDDBG_FACILITY NFSDDBG_EXPORT

		@@ -832,8 +833,10 @@ exp_find_key(struct cache_detail cd, struct auth_domain clp, int fsid_type,
		if (ek == NULL)
		return ERR_PTR(-ENOMEM);
		err = cache_check(cd, &ek->h, reqp);
		if (err)
		if (err) {
		trace_nfsd_exp_find_key(&key, err);
		return ERR_PTR(err);
		}
		return ek;
		}

		@@ -855,8 +858,10 @@ exp_get_by_name(struct cache_detail cd, struct auth_domain clp,
		if (exp == NULL)
		return ERR_PTR(-ENOMEM);
		err = cache_check(cd, &exp->h, reqp);
		if (err)
		if (err) {
		trace_nfsd_exp_get_by_name(&key, err);
		return ERR_PTR(err);
		}
		return exp;
		}

+46 −0

Original line number	Diff line number	Diff line
		@@ -9,6 +9,7 @@
		#define _NFSD_TRACE_H

		#include <linux/tracepoint.h>
		#include "export.h"
		#include "nfsfh.h"

		TRACE_EVENT(nfsd_compound,
		@@ -80,6 +81,51 @@ DEFINE_EVENT(nfsd_fh_err_class, nfsd_##name, \
		DEFINE_NFSD_FH_ERR_EVENT(set_fh_dentry_badexport);
		DEFINE_NFSD_FH_ERR_EVENT(set_fh_dentry_badhandle);

		TRACE_EVENT(nfsd_exp_find_key,
		TP_PROTO(const struct svc_expkey *key,
		int status),
		TP_ARGS(key, status),
		TP_STRUCT__entry(
		__field(int, fsidtype)
		__array(u32, fsid, 6)
		__string(auth_domain, key->ek_client->name)
		__field(int, status)
		),
		TP_fast_assign(
		__entry->fsidtype = key->ek_fsidtype;
		memcpy(__entry->fsid, key->ek_fsid, 4*6);
		__assign_str(auth_domain, key->ek_client->name);
		__entry->status = status;
		),
		TP_printk("fsid=%x::%s domain=%s status=%d",
		__entry->fsidtype,
		__print_array(__entry->fsid, 6, 4),
		__get_str(auth_domain),
		__entry->status
		)
		);

		TRACE_EVENT(nfsd_exp_get_by_name,
		TP_PROTO(const struct svc_export *key,
		int status),
		TP_ARGS(key, status),
		TP_STRUCT__entry(
		__string(path, key->ex_path.dentry->d_name.name)
		__string(auth_domain, key->ex_client->name)
		__field(int, status)
		),
		TP_fast_assign(
		__assign_str(path, key->ex_path.dentry->d_name.name);
		__assign_str(auth_domain, key->ex_client->name);
		__entry->status = status;
		),
		TP_printk("path=%s domain=%s status=%d",
		__get_str(path),
		__get_str(auth_domain),
		__entry->status
		)
		);

		DECLARE_EVENT_CLASS(nfsd_io_class,
		TP_PROTO(struct svc_rqst *rqstp,
		struct svc_fh *fhp,