nfsd4: simplify free_stateid

We no longer need is_deleg_stateid, for example.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>

1 files changed, 15 insertions, 51 deletions

diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index a174841b262e..fdd03f6ae044 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -1098,16 +1098,6 @@ static struct nfs4_stid *find_stateid(stateid_t *t)
         return NULL;
 }
 
-static struct nfs4_ol_stateid *find_ol_stateid(stateid_t *t)
-{
-        struct nfs4_stid *s;
-
-        s = find_stateid(t);
-        if (!s)
-                return NULL;
-        return openlockstateid(s);
-}
-
 static struct nfs4_stid *find_stateid_by_type(stateid_t *t, char typemask)
 {
         struct nfs4_stid *s;
@@ -3251,11 +3241,6 @@ static int check_stateid_generation(stateid_t *in, stateid_t *ref, bool has_sess
         return nfserr_old_stateid;
 }
 
-static int is_delegation_stateid(stateid_t *stateid)
-{
-        return stateid->si_fileid == 0;
-}
-
 __be32 nfs4_validate_stateid(stateid_t *stateid, bool has_session)
 {
         struct nfs4_stid *s;
@@ -3353,16 +3338,6 @@ out:
 }
 
 static __be32
-nfsd4_free_delegation_stateid(stateid_t *stateid)
-{
-        struct nfs4_delegation *dp = find_deleg_stateid(stateid);
-        if (dp)
-                return nfserr_locks_held;
-
-        return nfserr_bad_stateid;
-}
-
-static __be32
 nfsd4_free_lock_stateid(struct nfs4_ol_stateid *stp)
 {
         if (check_for_locks(stp->st_file, lockowner(stp->st_stateowner)))
@@ -3382,40 +3357,32 @@ nfsd4_test_stateid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
         return nfs_ok;
 }
 
-/*
- * Free a state id
- */
 __be32
 nfsd4_free_stateid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
                    struct nfsd4_free_stateid *free_stateid)
 {
         stateid_t *stateid = &free_stateid->fr_stateid;
-        struct nfs4_ol_stateid *stp;
-        __be32 ret;
+        struct nfs4_stid *s;
+        __be32 ret = nfserr_bad_stateid;
 
         nfs4_lock_state();
-        if (is_delegation_stateid(stateid)) {
-                ret = nfsd4_free_delegation_stateid(stateid);
-                goto out;
-        }
-
-        stp = find_ol_stateid(stateid);
-        if (!stp) {
-                ret = nfserr_bad_stateid;
-                goto out;
-        }
-        ret = check_stateid_generation(stateid, &stp->st_stid.sc_stateid, 1);
-        if (ret)
+        s = find_stateid(stateid);
+        if (!s)
                 goto out;
-
-        if (stp->st_stid.sc_type == NFS4_OPEN_STID) {
+        switch (s->sc_type) {
+        case NFS4_DELEG_STID:
                 ret = nfserr_locks_held;
                 goto out;
-        } else {
-                ret = nfsd4_free_lock_stateid(stp);
-                goto out;
+        case NFS4_OPEN_STID:
+        case NFS4_LOCK_STID:
+                ret = check_stateid_generation(stateid, &s->sc_stateid, 1);
+                if (ret)
+                        goto out;
+                if (s->sc_type == NFS4_LOCK_STID)
+                        ret = nfsd4_free_lock_stateid(openlockstateid(s));
+                else
+                        ret = nfserr_locks_held;
         }
-
 out:
         nfs4_unlock_state();
         return ret;
@@ -3698,9 +3665,6 @@ nfsd4_delegreturn(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
         status = nfserr_stale_stateid;
         if (STALE_STATEID(stateid))
                 goto out;
-        status = nfserr_bad_stateid;
-        if (!is_delegation_stateid(stateid))
-                goto out;
         status = nfserr_expired;
         dp = find_deleg_stateid(stateid);
         if (!dp)