nfsd4: remove HAS_SESSION

This flag doesn't really buy us anything.

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

diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 3e64288..14c8dd6 100644 (file)
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -3168,13 +3168,13 @@ grace_disallows_io(struct inode *inode)
        return locks_in_grace() && mandatory_lock(inode);
 }
 
-static int check_stateid_generation(stateid_t *in, stateid_t *ref, int flags)
+static int check_stateid_generation(stateid_t *in, stateid_t *ref, bool has_session)
 {
        /*
         * When sessions are used the stateid generation number is ignored
         * when it is zero.
         */
-       if ((flags & HAS_SESSION) && in->si_generation == 0)
+       if (has_session && in->si_generation == 0)
                goto out;
 
        /* If the client sends us a stateid from the future, it's buggy: */
@@ -3206,7 +3206,7 @@ static int is_open_stateid(struct nfs4_stateid *stateid)
        return stateid->st_openstp == NULL;
 }
 
-__be32 nfs4_validate_stateid(stateid_t *stateid, int flags)
+__be32 nfs4_validate_stateid(stateid_t *stateid, bool has_session)
 {
        struct nfs4_stateid *stp = NULL;
        __be32 status = nfserr_stale_stateid;
@@ -3223,7 +3223,7 @@ __be32 nfs4_validate_stateid(stateid_t *stateid, int flags)
        if (!stp->st_stateowner->so_confirmed)
                goto out;
 
-       status = check_stateid_generation(stateid, &stp->st_stateid, flags);
+       status = check_stateid_generation(stateid, &stp->st_stateid, has_session);
        if (status)
                goto out;
 
@@ -3251,9 +3251,6 @@ nfs4_preprocess_stateid_op(struct nfsd4_compound_state *cstate,
        if (grace_disallows_io(ino))
                return nfserr_grace;
 
-       if (nfsd4_has_session(cstate))
-               flags |= HAS_SESSION;
-
        if (ZERO_STATEID(stateid) || ONE_STATEID(stateid))
                return check_special_stateids(current_fh, stateid, flags);
 
@@ -3270,8 +3267,7 @@ nfs4_preprocess_stateid_op(struct nfsd4_compound_state *cstate,
                dp = find_delegation_stateid(ino, stateid);
                if (!dp)
                        goto out;
-               status = check_stateid_generation(stateid, &dp->dl_stateid,
-                                                 flags);
+               status = check_stateid_generation(stateid, &dp->dl_stateid, nfsd4_has_session(cstate));
                if (status)
                        goto out;
                status = nfs4_check_delegmode(dp, flags);
@@ -3292,7 +3288,7 @@ nfs4_preprocess_stateid_op(struct nfsd4_compound_state *cstate,
                if (!stp->st_stateowner->so_confirmed)
                        goto out;
                status = check_stateid_generation(stateid, &stp->st_stateid,
-                                                 flags);
+                                                 nfsd4_has_session(cstate));
                if (status)
                        goto out;
                status = nfs4_check_openmode(stp, flags);
@@ -3421,9 +3417,6 @@ nfs4_preprocess_seqid_op(struct nfsd4_compound_state *cstate, u32 seqid,
        if (STALE_STATEID(stateid))
                return nfserr_stale_stateid;
 
-       if (nfsd4_has_session(cstate))
-               flags |= HAS_SESSION;
-
        /*
        * We return BAD_STATEID if filehandle doesn't match stateid, 
        * the confirmed flag is incorrecly set, or the generation 
@@ -3457,7 +3450,7 @@ nfs4_preprocess_seqid_op(struct nfsd4_compound_state *cstate, u32 seqid,
                if (lock->lk_is_new) {
                        if (!sop->so_is_open_owner)
                                return nfserr_bad_stateid;
-                       if (!(flags & HAS_SESSION) &&
+                       if (!nfsd4_has_session(cstate) &&
                            !same_clid(&clp->cl_clientid, lockclid))
                                return nfserr_bad_stateid;
                        /* stp is the open stateid */
@@ -3482,7 +3475,7 @@ nfs4_preprocess_seqid_op(struct nfsd4_compound_state *cstate, u32 seqid,
        *  For the moment, we ignore the possibility of 
        *  generation number wraparound.
        */
-       if (!(flags & HAS_SESSION) && seqid != sop->so_seqid)
+       if (!nfsd4_has_session(cstate) && seqid != sop->so_seqid)
                goto check_replay;
 
        if (sop->so_confirmed && flags & CONFIRM) {
@@ -3495,7 +3488,7 @@ nfs4_preprocess_seqid_op(struct nfsd4_compound_state *cstate, u32 seqid,
                                " confirmed yet!\n");
                return nfserr_bad_stateid;
        }
-       status = check_stateid_generation(stateid, &stp->st_stateid, flags);
+       status = check_stateid_generation(stateid, &stp->st_stateid, nfsd4_has_session(cstate));
        if (status)
                return status;
        renew_client(sop->so_client);
@@ -3679,14 +3672,11 @@ nfsd4_delegreturn(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
        stateid_t *stateid = &dr->dr_stateid;
        struct inode *inode;
        __be32 status;
-       int flags = 0;
 
        if ((status = fh_verify(rqstp, &cstate->current_fh, S_IFREG, 0)))
                return status;
        inode = cstate->current_fh.fh_dentry->d_inode;
 
-       if (nfsd4_has_session(cstate))
-               flags |= HAS_SESSION;
        nfs4_lock_state();
        status = nfserr_bad_stateid;
        if (ZERO_STATEID(stateid) || ONE_STATEID(stateid))
@@ -3701,7 +3691,7 @@ nfsd4_delegreturn(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
        dp = find_delegation_stateid(inode, stateid);
        if (!dp)
                goto out;
-       status = check_stateid_generation(stateid, &dp->dl_stateid, flags);
+       status = check_stateid_generation(stateid, &dp->dl_stateid, nfsd4_has_session(cstate));
        if (status)
                goto out;
        renew_client(dp->dl_client);

diff --git a/fs/nfsd/state.h b/fs/nfsd/state.h
index 12c1b1e..f02badd 100644 (file)
--- a/fs/nfsd/state.h
+++ b/fs/nfsd/state.h
@@ -439,7 +439,6 @@ struct nfs4_stateid {
 };
 
 /* flags for preprocess_seqid_op() */
-#define HAS_SESSION             0x00000001
 #define CONFIRM                 0x00000002
 #define OPEN_STATE              0x00000004
 #define LOCK_STATE              0x00000008
@@ -476,7 +475,7 @@ extern void nfsd4_recdir_purge_old(void);
 extern int nfsd4_create_clid_dir(struct nfs4_client *clp);
 extern void nfsd4_remove_clid_dir(struct nfs4_client *clp);
 extern void release_session_client(struct nfsd4_session *);
-extern __be32 nfs4_validate_stateid(stateid_t *, int);
+extern __be32 nfs4_validate_stateid(stateid_t *, bool);
 
 static inline void
 nfs4_put_stateowner(struct nfs4_stateowner *so)

diff --git a/fs/nfsd/xdr4.h b/fs/nfsd/xdr4.h
index d2a8d04..663193b 100644 (file)
--- a/fs/nfsd/xdr4.h
+++ b/fs/nfsd/xdr4.h
@@ -351,7 +351,7 @@ struct nfsd4_saved_compoundargs {
 
 struct nfsd4_test_stateid {
        __be32          ts_num_ids;
-       __be32          ts_has_session;
+       bool            ts_has_session;
        struct nfsd4_compoundargs *ts_saved_args;
        struct nfsd4_saved_compoundargs ts_savedp;
 };