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nfsd: Migrate the stateid reference into nfs4_find_stateid_by_type() 

Allow nfs4_find_stateid_by_type to take the stateid reference, while
still holding the &cl->cl_lock. Necessary step toward client_mutex
removal.

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 21:34:25 -04:00 committed by J. Bruce Fields
parent fd9110113c
commit 2d3f96689f
1 changed files with 6 additions and 6 deletions
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12
fs/nfsd/nfs4state.c
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@ -1696,8 +1696,12 @@ find_stateid_by_type(struct nfs4_client *cl, stateid_t *t, char typemask)
spin_lock(&cl->cl_lock);
s = find_stateid_locked(cl, t);
if (s != NULL && !(typemask & s->sc_type))
s = NULL;
if (s != NULL) {
if (typemask & s->sc_type)
atomic_inc(&s->sc_count);
else
s = NULL;
}
spin_unlock(&cl->cl_lock);
return s;
}
@ -3326,8 +3330,6 @@ static struct nfs4_delegation *find_deleg_stateid(struct nfs4_client *cl, statei
ret = find_stateid_by_type(cl, s, NFS4_DELEG_STID);
if (!ret)
return NULL;
/* FIXME: move into find_stateid_by_type */
atomic_inc(&ret->sc_count);
return delegstateid(ret);
}
@ -4170,8 +4172,6 @@ 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;
}