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nfsd: Migrate the stateid reference into nfs4_lookup_stateid() 

Allow nfs4_lookup_stateid to take the stateid reference, instead
of having all the callers do so.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
Trond Myklebust 2014-07-29 21:34:24 -04:00 committed by J. Bruce Fields
parent 4cbfc9f704
commit fd9110113c
1 changed files with 11 additions and 6 deletions
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17
fs/nfsd/nfs4state.c
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@ -4170,6 +4170,8 @@ nfsd4_lookup_stateid(struct nfsd4_compound_state *cstate,
*s = find_stateid_by_type(cstate->clp, stateid, typemask);
if (!*s)
return nfserr_bad_stateid;
/* FIXME: move into find_stateid_by_type */
atomic_inc(&(*s)->sc_count);
return nfs_ok;
}
@ -4204,7 +4206,7 @@ nfs4_preprocess_stateid_op(struct net *net, struct nfsd4_compound_state *cstate,
NFS4_DELEG_STID|NFS4_OPEN_STID|NFS4_LOCK_STID,
&s, nn);
if (status)
goto out;
goto unlock_state;
status = check_stateid_generation(stateid, &s->sc_stateid, nfsd4_has_session(cstate));
if (status)
goto out;
@ -4253,6 +4255,8 @@ nfs4_preprocess_stateid_op(struct net *net, struct nfsd4_compound_state *cstate,
if (file)
*filpp = file;
out:
nfs4_put_stid(s);
unlock_state:
nfs4_unlock_state();
return status;
}
@ -4390,11 +4394,10 @@ nfs4_preprocess_seqid_op(struct nfsd4_compound_state *cstate, u32 seqid,
cstate->replay_owner = stp->st_stateowner;
status = nfs4_seqid_op_checks(cstate, stateid, seqid, stp);
if (!status) {
/* FIXME: move into find_stateid_by_type */
atomic_inc(&stp->st_stid.sc_count);
if (!status)
*stpp = stp;
}
else
nfs4_put_stid(&stp->st_stid);
return status;
}
@ -4623,9 +4626,11 @@ nfsd4_delegreturn(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
dp = delegstateid(s);
status = check_stateid_generation(stateid, &dp->dl_stid.sc_stateid, nfsd4_has_session(cstate));
if (status)
goto out;
goto put_stateid;
destroy_delegation(dp);
put_stateid:
nfs4_put_stid(&dp->dl_stid);
out:
nfs4_unlock_state();