diff options
Diffstat (limited to 'fs/nfs/pnfs_dev.c')
| -rw-r--r-- | fs/nfs/pnfs_dev.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/fs/nfs/pnfs_dev.c b/fs/nfs/pnfs_dev.c index aa2ec0015183..bf23ac97d57d 100644 --- a/fs/nfs/pnfs_dev.c +++ b/fs/nfs/pnfs_dev.c @@ -175,8 +175,8 @@ __nfs4_find_get_deviceid(struct nfs_server *server, rcu_read_lock(); d = _lookup_deviceid(server->pnfs_curr_ld, server->nfs_client, id, hash); - if (d != NULL) - atomic_inc(&d->ref); + if (d != NULL && !atomic_inc_not_zero(&d->ref)) + d = NULL; rcu_read_unlock(); return d; } @@ -236,7 +236,6 @@ nfs4_delete_deviceid(const struct pnfs_layoutdriver_type *ld, } hlist_del_init_rcu(&d->node); spin_unlock(&nfs4_deviceid_lock); - synchronize_rcu(); /* balance the initial ref set in pnfs_insert_deviceid */ if (atomic_dec_and_test(&d->ref)) @@ -321,7 +320,6 @@ _deviceid_purge_client(const struct nfs_client *clp, long hash) if (hlist_empty(&tmp)) return; - synchronize_rcu(); while (!hlist_empty(&tmp)) { d = hlist_entry(tmp.first, struct nfs4_deviceid_node, tmpnode); hlist_del(&d->tmpnode); |