Commit 6a30e47f authored by Trond Myklebust's avatar Trond Myklebust Committed by Chuck Lever

nfsd: Add tracepoints for update of the expkey and export cache entries

Signed-off-by: default avatarTrond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: default avatarChuck Lever <chuck.lever@oracle.com>
parent cf749f3c
......@@ -141,7 +141,9 @@ static int expkey_parse(struct cache_detail *cd, char *mesg, int mlen)
if (len == 0) {
set_bit(CACHE_NEGATIVE, &key.h.flags);
ek = svc_expkey_update(cd, &key, ek);
if (!ek)
if (ek)
trace_nfsd_expkey_update(ek, NULL);
else
err = -ENOMEM;
} else {
err = kern_path(buf, 0, &key.ek_path);
......@@ -151,7 +153,9 @@ static int expkey_parse(struct cache_detail *cd, char *mesg, int mlen)
dprintk("Found the path %s\n", buf);
ek = svc_expkey_update(cd, &key, ek);
if (!ek)
if (ek)
trace_nfsd_expkey_update(ek, buf);
else
err = -ENOMEM;
path_put(&key.ek_path);
}
......@@ -644,15 +648,17 @@ static int svc_export_parse(struct cache_detail *cd, char *mesg, int mlen)
}
expp = svc_export_lookup(&exp);
if (expp)
expp = svc_export_update(&exp, expp);
else
if (!expp) {
err = -ENOMEM;
goto out4;
}
expp = svc_export_update(&exp, expp);
if (expp) {
trace_nfsd_export_update(expp);
cache_flush();
if (expp == NULL)
err = -ENOMEM;
else
exp_put(expp);
} else
err = -ENOMEM;
out4:
nfsd4_fslocs_free(&exp.ex_fslocs);
kfree(exp.ex_uuid);
......
......@@ -105,6 +105,32 @@ TRACE_EVENT(nfsd_exp_find_key,
)
);
TRACE_EVENT(nfsd_expkey_update,
TP_PROTO(const struct svc_expkey *key, const char *exp_path),
TP_ARGS(key, exp_path),
TP_STRUCT__entry(
__field(int, fsidtype)
__array(u32, fsid, 6)
__string(auth_domain, key->ek_client->name)
__string(path, exp_path)
__field(bool, cache)
),
TP_fast_assign(
__entry->fsidtype = key->ek_fsidtype;
memcpy(__entry->fsid, key->ek_fsid, 4*6);
__assign_str(auth_domain, key->ek_client->name);
__assign_str(path, exp_path);
__entry->cache = !test_bit(CACHE_NEGATIVE, &key->h.flags);
),
TP_printk("fsid=%x::%s domain=%s path=%s cache=%s",
__entry->fsidtype,
__print_array(__entry->fsid, 6, 4),
__get_str(auth_domain),
__get_str(path),
__entry->cache ? "pos" : "neg"
)
);
TRACE_EVENT(nfsd_exp_get_by_name,
TP_PROTO(const struct svc_export *key,
int status),
......@@ -126,6 +152,26 @@ TRACE_EVENT(nfsd_exp_get_by_name,
)
);
TRACE_EVENT(nfsd_export_update,
TP_PROTO(const struct svc_export *key),
TP_ARGS(key),
TP_STRUCT__entry(
__string(path, key->ex_path.dentry->d_name.name)
__string(auth_domain, key->ex_client->name)
__field(bool, cache)
),
TP_fast_assign(
__assign_str(path, key->ex_path.dentry->d_name.name);
__assign_str(auth_domain, key->ex_client->name);
__entry->cache = !test_bit(CACHE_NEGATIVE, &key->h.flags);
),
TP_printk("path=%s domain=%s cache=%s",
__get_str(path),
__get_str(auth_domain),
__entry->cache ? "pos" : "neg"
)
);
DECLARE_EVENT_CLASS(nfsd_io_class,
TP_PROTO(struct svc_rqst *rqstp,
struct svc_fh *fhp,
......
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