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NFSD: New helper nfs4_get_stateowner() for atomic_inc sop reference 

v5: same as the first version

Reviewed-by: Jeff Layton <jlayton@primarydata.com>
Signed-off-by: Kinglong Mee <kinglongmee@gmail.com>
Signed-off-by: Jeff Layton <jlayton@primarydata.com>
This commit is contained in:
Kinglong Mee 2014-08-22 10:18:43 -04:00 committed by Jeff Layton
parent f328296e27
commit b5971afa0b
1 changed files with 16 additions and 16 deletions
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32
fs/nfsd/nfs4state.c
View File

@ -216,6 +216,13 @@ static void nfsd4_put_session(struct nfsd4_session *ses)
spin_unlock(&nn->client_lock);
}
static inline struct nfs4_stateowner *
nfs4_get_stateowner(struct nfs4_stateowner *sop)
{
atomic_inc(&sop->so_count);
return sop;
}
static int
same_owner_str(struct nfs4_stateowner *sop, struct xdr_netobj *owner)
{
@ -235,10 +242,8 @@ find_openstateowner_str_locked(unsigned int hashval, struct nfsd4_open *open,
so_strhash) {
if (!so->so_is_open_owner)
continue;
if (same_owner_str(so, &open->op_owner)) {
atomic_inc(&so->so_count);
return openowner(so);
}
if (same_owner_str(so, &open->op_owner))
return openowner(nfs4_get_stateowner(so));
}
return NULL;
}
@ -1651,7 +1656,7 @@ __destroy_client(struct nfs4_client *clp)
}
while (!list_empty(&clp->cl_openowners)) {
oo = list_entry(clp->cl_openowners.next, struct nfs4_openowner, oo_perclient);
atomic_inc(&oo->oo_owner.so_count);
nfs4_get_stateowner(&oo->oo_owner);
release_openowner(oo);
}
nfsd4_shutdown_callback(clp);
@ -3132,8 +3137,7 @@ static void nfsd4_cstate_assign_replay(struct nfsd4_compound_state *cstate,
{
if (!nfsd4_has_session(cstate)) {
mutex_lock(&so->so_replay.rp_mutex);
cstate->replay_owner = so;
atomic_inc(&so->so_count);
cstate->replay_owner = nfs4_get_stateowner(so);
}
}
@ -3232,8 +3236,7 @@ static void init_open_stateid(struct nfs4_ol_stateid *stp, struct nfs4_file *fp,
atomic_inc(&stp->st_stid.sc_count);
stp->st_stid.sc_type = NFS4_OPEN_STID;
INIT_LIST_HEAD(&stp->st_locks);
stp->st_stateowner = &oo->oo_owner;
atomic_inc(&stp->st_stateowner->so_count);
stp->st_stateowner = nfs4_get_stateowner(&oo->oo_owner);
get_nfs4_file(fp);
stp->st_stid.sc_file = fp;
stp->st_access_bmap = 0;
@ -4921,10 +4924,8 @@ find_lockowner_str_locked(clientid_t *clid, struct xdr_netobj *owner,
so_strhash) {
if (so->so_is_open_owner)
continue;
if (!same_owner_str(so, owner))
continue;
atomic_inc(&so->so_count);
return lockowner(so);
if (same_owner_str(so, owner))
return lockowner(nfs4_get_stateowner(so));
}
return NULL;
}
@ -5003,8 +5004,7 @@ init_lock_stateid(struct nfs4_ol_stateid *stp, struct nfs4_lockowner *lo,
atomic_inc(&stp->st_stid.sc_count);
stp->st_stid.sc_type = NFS4_LOCK_STID;
stp->st_stateowner = &lo->lo_owner;
atomic_inc(&lo->lo_owner.so_count);
stp->st_stateowner = nfs4_get_stateowner(&lo->lo_owner);
get_nfs4_file(fp);
stp->st_stid.sc_file = fp;
stp->st_stid.sc_free = nfs4_free_lock_stateid;
@ -5546,7 +5546,7 @@ nfsd4_release_lockowner(struct svc_rqst *rqstp,
}
}
atomic_inc(&sop->so_count);
nfs4_get_stateowner(sop);
break;
}
spin_unlock(&clp->cl_lock);