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authorJ. Bruce Fields <bfields@redhat.com>2010-10-02 17:04:00 -0400
committerJ. Bruce Fields <bfields@redhat.com>2010-10-21 10:11:52 -0400
commit86c3e16cc7aace4d1143952813b6cc2a80c51295 (patch)
tree9e05be561cf85e5e5eab57464c0cc63a3cdf7087 /fs/nfsd
parentac7c46f29a44f6d7f6d2e36dc874c0b7056acad2 (diff)
nfsd4: confirm only on succesful create_session
Following rfc 5661, section 18.36.4: "If the session is not successfully created, then no changes are made to any client records on the server." We shouldn't be confirming or incrementing the sequence id in this case. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'fs/nfsd')
-rw-r--r--fs/nfsd/nfs4state.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 6367c445d01..7e817d13cd8 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -1487,6 +1487,7 @@ nfsd4_create_session(struct svc_rqst *rqstp,
struct nfs4_client *conf, *unconf;
struct nfsd4_session *new;
struct nfsd4_clid_slot *cs_slot = NULL;
+ bool confirm_me = false;
int status = 0;
nfs4_lock_state();
@@ -1509,7 +1510,6 @@ nfsd4_create_session(struct svc_rqst *rqstp,
cs_slot->sl_seqid, cr_ses->seqid);
goto out;
}
- cs_slot->sl_seqid++;
} else if (unconf) {
if (!same_creds(&unconf->cl_cred, &rqstp->rq_cred) ||
!rpc_cmp_addr(sa, (struct sockaddr *) &unconf->cl_addr)) {
@@ -1525,8 +1525,7 @@ nfsd4_create_session(struct svc_rqst *rqstp,
goto out;
}
- cs_slot->sl_seqid++; /* from 0 to 1 */
- move_to_confirmed(unconf);
+ confirm_me = true;
conf = unconf;
} else {
status = nfserr_stale_clientid;
@@ -1546,10 +1545,13 @@ nfsd4_create_session(struct svc_rqst *rqstp,
status = nfs_ok;
memcpy(cr_ses->sessionid.data, new->se_sessionid.data,
NFS4_MAX_SESSIONID_LEN);
+ cs_slot->sl_seqid++;
cr_ses->seqid = cs_slot->sl_seqid;
/* cache solo and embedded create sessions under the state lock */
nfsd4_cache_create_session(cr_ses, cs_slot, status);
+ if (confirm_me)
+ move_to_confirmed(conf);
out:
nfs4_unlock_state();
dprintk("%s returns %d\n", __func__, ntohl(status));